CN219876114U - Sound generating device and electronic equipment - Google Patents

Abstract

The utility model discloses a sound generating device and electronic equipment. The magnetic circuit system is arranged on the shell and provided with a magnetic gap; the vibration system comprises a vibration film assembly and a voice coil, wherein the vibration film assembly comprises a vibration film and a ball top, the vibration film comprises a body and a conductive diaphragm, the body and the conductive diaphragm are arranged in a laminated mode, the ball top is connected with the center of the vibration film, one end of the voice coil is connected with the vibration film assembly, and the other end of the voice coil is inserted into a corresponding magnetic gap; the conductive diaphragm is arranged on one side of the body, which is close to the voice coil, the top of the ball is provided with a bonding pad part, and the lead part of the voice coil and the conductive diaphragm are connected in series through the bonding pad part. According to the sound generating device, the bonding pad part is arranged on the top of the ball, and the lead part of the voice coil and the conductive diaphragm are connected in series through the bonding pad part, so that the internal space can be saved, the maximization of the magnetic circuit system can be realized, and the stability of electric connection can be effectively improved.

Description

Sound generating device and electronic equipment

Technical Field

The present utility model relates to electroacoustic devices, and more particularly, to a sound generating device and an electronic device.

Background

The loudspeaker is a transducer for converting electric signals into acoustic signals, and is widely applied to electronic equipment such as mobile phones, computers and the like. Generally, a speaker includes a diaphragm assembly, a voice coil coupled to one side of the diaphragm assembly, and terminals electrically connected to the voice coil and an external circuit, respectively, and a lead portion of the voice coil is electrically connected to pads on the terminals by soldering. Or, the loudspeaker further comprises a centering support piece, a first bonding pad is arranged on the centering support piece, a second bonding pad is arranged on the wiring terminal, the lead part of the voice coil is electrically connected with the first bonding pad, and the first bonding pad on the centering support piece is electrically connected with the second bonding pad on the wiring terminal, so that the conduction of the internal circuit and the external circuit is realized.

However, when the lead portion is directly electrically connected to the bonding pad of the external terminal, the lead portion needs to be threaded along a certain length, so that the amplitude of the voice coil cannot be too large to prevent the occurrence of wire breakage, thereby affecting the sound production effect of the speaker. The above-mentioned circumstances that sets up centering piece, though can solve the problem of broken string, but centering piece occupy a part installation space, and magnetic circuit need dodge centering piece moreover, has not only satisfied the frivolous demand of speaker, and magnetic circuit's B value is less moreover to the sound production sensitivity of speaker has been reduced.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the sound generating device which has the advantages of saving the internal space, high sound generating sensitivity and stable electric connection.

The utility model also provides electronic equipment with the sounding device.

According to an embodiment of the first aspect of the present utility model, a sound emitting device includes: a housing; the magnetic circuit system is arranged on the shell and is provided with a magnetic gap; the vibration system comprises a vibration film assembly and a voice coil, wherein the vibration film assembly comprises a vibration film and a ball top, the vibration film comprises a body and a conductive film, the body and the conductive film are arranged in a laminated mode, the ball top is connected with the central position of the vibration film, one end of the voice coil is connected with the vibration film assembly, and the other end of the voice coil is inserted into the magnetic gap; the conductive diaphragm is arranged on one side of the body, which is close to the voice coil, the top of the ball is provided with a bonding pad part, and the lead part of the voice coil and the conductive diaphragm are connected in series through the bonding pad part.

According to the sound production device of the embodiment of the first aspect of the utility model, the vibrating diaphragm assembly comprises the vibrating diaphragm and the ball top, the vibrating diaphragm is provided with the body and the conductive diaphragm, the body and the conductive diaphragm are arranged in a stacked mode, the ball top is arranged at the center of the vibrating diaphragm, the conductive diaphragm is arranged on one side of the body, which is close to the voice coil, the ball top is provided with the bonding pad part, and the lead part of the voice coil and the conductive diaphragm are connected in series through the bonding pad part. The setting has cancelled the setting of centering piece, has practiced thrift the inside space of sound generating mechanism, and magnetic circuit can realize the maximize design, can increase magnetic circuit's B value from this, and then can promote sound generating mechanism's sound production sensitivity. Simultaneously, the voice coil lead wire is connected with the conductive diaphragm electricity through the pad portion of ball top, because voice coil loudspeaker voice coil and conductive diaphragm synchronous vibration for the voice coil loudspeaker voice coil lead wire is along line distance shortening, thereby can reduce the risk of lead wire portion broken wire, has promoted the stability of sound generating mechanism electricity connection.

According to some embodiments of the utility model, the pad part includes a first side provided on a side of the dome near the voice coil and a second side provided on a side of the dome away from the voice coil, the first side being electrically connected to the voice coil, the second side being electrically connected to the conductive diaphragm.

In some embodiments of the utility model, a conductive adhesive is disposed between the second side and the conductive membrane.

In some embodiments of the present utility model, the housing is provided with a wire inlet terminal and a wire outlet terminal, the lead portion includes a first lead and a second lead, the conductive film includes a first conductive film and a second conductive film, the pad portion includes a first pad and a second pad, the second side of the first pad is electrically connected to the wire inlet terminal through the first conductive film, the first side of the first pad is electrically connected to the first lead, the first side of the second pad is electrically connected to the second lead, and the second side of the second pad is electrically connected to the wire outlet terminal through the second conductive film.

In some embodiments of the present utility model, the top of the ball is formed into a square structure, the top of the ball includes a first straight edge and a second straight edge connected end to end, a corner is formed at a connection position of the first straight edge and the second straight edge, and the first bonding pad and the second bonding pad are respectively arranged at a corner position of the top of the ball, wherein the first bonding pad and the second bonding pad are diagonally arranged; or, the first bonding pad and the second bonding pad are positioned at two sides of the first straight edge; or, the first bonding pad and the second bonding pad are positioned at two sides of the second straight edge.

In some embodiments of the present utility model, the pad part further includes two auxiliary pads, the two auxiliary pads are consistent with the external dimensions of the first pad and the second pad, and the two auxiliary pads, the first pad and the second pad are respectively disposed at four corners of the dome.

In some embodiments of the present utility model, the diaphragm is formed in a square structure, and the conductive film further includes two auxiliary conductive films, wherein the auxiliary conductive films are consistent with the first conductive film and the second conductive film in external dimensions, and the first conductive film, the second conductive film and the two auxiliary conductive films are respectively disposed at four corners of the body.

According to some embodiments of the utility model, the conductive membrane is injection molded/hot pressed integrally with the body; or, the conductive membrane is connected with the body in an adhesive manner; or, the conductive film is formed by coating conductive paste on the surface of the body.

According to some embodiments of the utility model, the dome is provided with a concave-down mating groove, a portion of the diaphragm connected with the dome is located in the mating groove, and the conductive membrane is located between the body and the dome.

An electronic device according to an embodiment of the second aspect of the present utility model includes the sound emitting apparatus according to the above-described embodiment of the present utility model.

According to the electronic equipment provided by the embodiment of the utility model, the sounding device is arranged, the setting of the centering support piece is omitted, the internal space is saved, the magnetic circuit system can realize the maximum design, the electrical connection stability is improved, the tone quality of the electronic equipment can be effectively improved, and the miniaturized design requirement of the electronic equipment can be met.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic diagram of the overall structure of a sound emitting device according to one embodiment of the present utility model;

FIG. 2 is a schematic diagram of a diaphragm assembly of a sound generating apparatus according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a voice coil structure of a sound generating apparatus according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a dome structure of a sound emitting device according to one embodiment of the present utility model;

FIG. 5 is a cross-sectional view of a sound emitting device according to one embodiment of the present utility model taken perpendicular to the direction of vibration;

fig. 6 is a cross-sectional view of a sound emitting device according to an embodiment of the present utility model in a vibration direction.

Reference numerals:

the sound-emitting device 100 is configured to emit light,

the housing 1, the inlet terminals 11, the outlet terminals 12,

magnetic circuit 2, central magnet 21, central washer 22, side magnets 23, bian Huasi, magnetic gap 25, yoke 26,

vibration system 3, diaphragm assembly 31, diaphragm 32, body 321, conductive film 322, first conductive film 3221, second conductive film 3222, first auxiliary conductive film 3223, second auxiliary conductive film 3224, dome 33, first straight edge 3301, second straight edge 3302, pad portion 331, first pad 3311, second pad 3312, first auxiliary pad 3313, second auxiliary pad 3314, body portion 332, mating groove 333, voice coil 34, first lead 341, second lead 342.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar components or components having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

A sound emitting device 100 according to an embodiment of the first aspect of the present utility model is described in detail below with reference to fig. 1 to 6, and the sound emitting device 100 may be a speaker unit.

As shown in fig. 1 to 6, a sound emitting device 100 according to an embodiment of the first aspect of the present utility model includes: a housing 1, a magnetic circuit system 2 and a vibration system 3.

The shape of the housing 1 may be flexibly designed according to practical situations, and specifically, in the embodiment shown in fig. 1, the housing 1 may have a first direction (a y direction shown in fig. 1) and a second direction (an x direction shown in fig. 1) perpendicular to each other. For example, the case 1 may be formed in a rectangular parallelepiped structure, the first direction may be a length direction of the rectangular parallelepiped, and the second direction may be a width direction of the rectangular parallelepiped. The Z direction shown in fig. 1 is a direction perpendicular to a plane in which the longitudinal direction and the width direction are located, and this direction is a vibration direction of the vibration system 3 of the sound generating apparatus 100, that is, a thickness direction of the sound generating apparatus 100. In this embodiment, the housing 1 may be a square annular frame with two open ends, and the magnetic circuit system 2 and the vibration system 3 are relatively disposed on two sides of the housing 1 and jointly enclose an internal installation space.

The magnetic circuit 2 may be fixed to the housing 1, and the magnetic circuit 2 may include a yoke 26, a center magnetic portion, and a side magnetic portion. The yoke 26 is fixed to one end of the housing 1, and the center magnetic portion and the side magnetic portion are fixed to a surface of the yoke 26 on a side close to the vibration system 3. Wherein the side magnetic portions are arranged around the circumference of the central magnetic portion, and a magnetic gap 25 is defined between the central magnetic portion and the side magnetic portions.

Specifically, as in the embodiment shown in fig. 1 and 6, the center magnetic portion may include a center magnet 21 and a center washer 22 that are stacked in this order in the thickness direction of the sound generating apparatus 100 (the z direction shown in fig. 1), the side magnetic portion may include side magnets 23 that are circumferentially spaced around the center magnet 21 and Bian Huasi that are disposed on the side of the side magnets 23 that is closer to the vibration system 3, and a magnetic gap 25 is defined between the center magnetic portion and the side magnetic portion. Wherein Bian Huasi can be injection-molded and connected to the inner side wall of the shell 1 to improve the connection stability of the edge washer 24. It should be emphasized that the number of the side magnets 23 included in the side magnetic portion is not limited to that shown in fig. 1, and the number of the side magnets 23 may be flexibly selected according to the arrangement condition of the magnetic circuit system 2.

As shown in fig. 1 and 6, the vibration system 3 may include a diaphragm assembly 31 and a voice coil 34, the diaphragm assembly 31 may include a diaphragm 32 and a dome 33, the diaphragm 32 is fixed on a periphery of the housing 1 and is opposite to the magnetic circuit system 2, the dome 33 is fixed on a side of the diaphragm 32 facing the magnetic circuit system 2, and the dome 33 may be fixedly connected with a center position of the diaphragm 32. For example, the center of the diaphragm 32 may be hollowed, the center of the dome 33 is exposed outside the sound generating device 100 through the center of the diaphragm 32, and the edge of the dome 33 surrounding the center is fixedly connected with the side of the diaphragm 32 facing the magnetic circuit system 2.

As shown in fig. 2, the diaphragm 32 may include a body 321 and a conductive diaphragm 322, where the conductive diaphragm 322 and the body 321 are stacked in a vibration direction of the vibration system 3, and the conductive diaphragm 322 is disposed on a side of the body 321 near the voice coil 34. Specifically, the conductive diaphragm 322 may be formed by, but not limited to, coating a conductive material on a side of the body 321 of the diaphragm 32 adjacent to the voice coil 34. One end of the voice coil 34 is fixedly connected with the diaphragm assembly 31, and the other end of the voice coil 34 is inserted into the corresponding magnetic gap 25. Further, the voice coil 34 is provided with a lead portion, the dome 33 is provided with a pad portion 331, and the lead portion of the voice coil 34 and the conductive diaphragm 322 are connected in series through the pad portion 331.

Specifically, as shown in fig. 1-5, the conductive diaphragm 322 and the voice coil 34 are disposed on opposite sides of the dome 33, respectively. The conductive diaphragm 322 is fixedly connected between the body 321 of the diaphragm 32 and the dome 33, and the voice coil 34 is fixed on one side of the dome 33 close to the magnetic circuit system 2. The voice coil 34 is provided with a lead portion for conducting a circuit, specifically, one end of the conductive diaphragm 322 is electrically connected with a conductive structure such as a bonding pad provided on the housing 1 for conducting an external circuit, and the other end of the conductive diaphragm 322 extends to the bonding pad portion 331 of the dome 33 and is electrically connected with the bonding pad portion 331 on the side close to the diaphragm 32, and the lead portion of the voice coil 34 is electrically connected with the bonding pad portion 311 on the side close to the magnetic circuit 2, thereby conducting the voice coil 34 and the external circuit.

According to the sound generating device 100 of the first embodiment of the present utility model, the diaphragm assembly 31 includes the diaphragm 32 and the dome 33, the diaphragm 32 is provided with the body 321 and the conductive film 322, the body 321 and the conductive film 322 are stacked along the vibration direction of the diaphragm 32, the dome 33 is provided at the center of the diaphragm 32, the conductive film 322 is provided at the side of the body 321 near the voice coil 34, the voice coil 34 is provided with the lead portion, the dome 33 is provided with the pad portion 331, and the lead portion of the voice coil 34 and the conductive film 322 are connected in series through the pad portion 331. So set up, cancelled the setting of centering piece, practiced thrift the inside space of sound generating mechanism 100, magnetic circuit 2 can realize the maximize design, can increase magnetic circuit 2's B value from this, and then can promote sound generating mechanism 100's sound production sensitivity. Meanwhile, the lead part of the voice coil 34 is electrically connected with the conductive diaphragm 322 through the pad part 331 of the dome 33, and the voice coil 34 and the conductive diaphragm 322 vibrate synchronously, so that the lead distance of the voice coil 34 is shortened, the risk of wire breakage of the lead part can be reduced, and the stability of the electrical connection of the sound generating device 100 is improved.

As shown in fig. 1, 4 and 5, according to some embodiments of the present utility model, the pad portion 331 provided on the dome 33 includes a first side provided on a side of the dome 33 near the voice coil 34 and a second side provided on a side of the dome 33 away from the voice coil 34. For example, the first side of the pad portion 331 is a side facing the magnetic circuit system 2 in the vibration direction of the vibration system 3, and the second side of the pad portion 331 is a side facing the diaphragm assembly 31 in the vibration direction of the vibration system 3. A first side of the pad portion 331 is electrically connected to the voice coil 34, and a second side of the pad portion 331 is electrically connected to the conductive diaphragm 332. Therefore, the voice coil 34 and the conductive diaphragm 322 are electrically connected with the first side and the second side which are respectively opposite to the pad portion 331, so that the conduction with an external circuit is realized, the line distance of the lead wire of the voice coil 34 can be shortened, the risk of disconnection of the lead wire portion of the voice coil 34 is reduced, and the stability of the electrical connection of the sound generating device 100 can be improved.

In some embodiments of the present utility model, a conductive adhesive may be disposed between the second side of the pad portion 331 and the conductive film 322. Specifically, the conductive adhesive may be coated on the second sides of the conductive film 322 and the pad portion 331 at the positions where the second sides are in contact with each other, so that the electrical connection stability of the pad portion 331 and the conductive film 322 may be improved, and meanwhile, the connection between the pad portion 331 and the conductive film 322 may be more stable.

According to some embodiments of the present utility model, the housing 1 is provided with an inlet terminal 11 and an outlet terminal 12, the lead portion includes a first lead 341 and a second lead 342, and the conductive film 322 includes a first conductive film 3221 and a second conductive film 3222. The pad part 331 includes a first pad 3311 and a second pad 3312. The second side of the first pad 3311 is electrically connected to the wire inlet terminal 11 through a first conductive film 3321, the first side of the first pad 3311 is electrically connected to the first wire 341, the first side of the second pad 3312 is electrically connected to the second wire 342, and the second side of the second pad 3312 is electrically connected to the wire outlet terminal 12 through a second conductive film 3222. Thus, the voice coil 34 is electrically connected to an external circuit, and the internal space of the sound generating apparatus 100 is saved and the electrical connection stability is higher than the case where the centering support is used for electrical connection.

For example, in the embodiment shown in fig. 1-6, the housing 1 is provided with an inlet terminal 11 and an outlet terminal 12. The incoming and outgoing terminals 11, 12 may be pads fixed to the outside of the housing 1 by injection molding. The inlet terminal 11 and the outlet terminal 12 are connected to an external circuit. The inlet terminal 11 and the outlet terminal 12 may be disposed on the same side in the longitudinal direction (y direction as shown in fig. 2 and 5) of the sound generating apparatus 100, or on the same side in the width direction (x direction as shown in fig. 2 and 5), or at diagonal positions, depending on practical applications. In the embodiment shown in fig. 2 and 5, the inlet terminal 11 and the outlet terminal 12 are respectively disposed at two corners on the same side of the sound generating device 100 in the length direction, where the corners are the connection between the length direction and the width direction of the housing 1 or the diaphragm assembly 31 of the sound generating device 100 shown in fig. 2 and 5.

As shown in fig. 2 and 5, the conductive film 322 may include a first conductive film 3221 and a second conductive film 3222, where the first conductive film 3221 is disposed corresponding to the wire inlet terminal 11 of the housing 1, for example, the first conductive film 3221 may be disposed at a corner of the diaphragm assembly 31 along the length direction, the second conductive film 3222 is disposed corresponding to the wire outlet terminal 12 of the housing 1, and the second conductive film 3222 is disposed at another corner of the diaphragm assembly 31 along the length direction and is located on the same side of the diaphragm assembly 31 as the first conductive film 3221.

As shown in fig. 3, 5 and 6, the end of the voice coil 34 remote from the diaphragm assembly 31 is inserted into the magnetic gap 25 defined by the center magnet 21 and the side magnets 23. The lead portion of the voice coil 34 may include a first lead 341 and a second lead 342. The first lead 341 is disposed corresponding to the first conductive film 3221, and the second lead 342 is disposed corresponding to the second conductive film 3222, that is, the first lead 341 and the second lead 342 are disposed at two corners of the same side of the sound generating device 100 along the length direction. It is to be understood that the outgoing positions of the first lead 341 and the second lead 342 may be flexibly designed according to the arrangement positions of the incoming terminal 11, the outgoing terminal 12, the first conductive film 3221, the second conductive film 3222, and the like.

As shown in fig. 4, the pad part 331 of the dome 33 may include a first pad 3311 and a second pad 3312, the first pad 3311 and the second pad 3312 being located at the same side of the sound generating apparatus 100 in the length direction. As shown in fig. 5, the first pad 3311 is provided corresponding to the first conductive film 3221, and the second pad 3312 is provided corresponding to the second conductive film 3222. The first lead 341 is disposed corresponding to the first pad 3311, the first lead 341 is electrically connected to a first side of the first pad 3311, one end of the first conductive film 3221 extending to the first pad 3311 is electrically connected to a second side of the first pad 3311, and the other end of the first conductive film 3221 is electrically connected to the wire inlet terminal 11. The second lead 342 is disposed corresponding to the second pad 3312, the second lead 342 is electrically connected to the first side of the second pad 3312, one end of the second conductive film 3222 extending to the second pad 3312 is electrically connected to the second side of the second pad 3312, and the other end of the second conductive film 3222 is electrically connected to the wire outlet terminal 12. Thereby, the voice coil 34 is electrically connected to an external circuit.

In some embodiments of the present utility model, as shown in fig. 4, the dome 33 may be formed in a square configuration, the dome 33 including a first straight edge 3301 and a second straight edge 3302 connected end-to-end. The junction of the first straight edge 3301 and the second straight edge 3302 is formed as a corner. It will be appreciated that the dome 33 has four corners. Wherein the first pad 3311 and the second pad 3312 are provided at two corner positions of the ball top 33. The first and second pads 3311, 3312 may be disposed diagonally, in other embodiments the first and second pads 3311, 3312 may be located on either side of the first straight edge 3301, and in other embodiments the first and second pads 3311, 3312 may be located on either side of the second straight edge 3302. In this way, the pad 331 can be flexibly arranged according to the layout requirement of the related structural components of the sound generating device 100, so as to increase the adaptability of the sound generating device 100.

In some embodiments of the present utility model, as shown in fig. 4, the pad part 331 may further include two auxiliary pads, the two auxiliary pads and the first pad 3311 and the second pad 3312 have identical external dimensions, and the two auxiliary pads and the first pad 3311 and the second pad 3312 are respectively disposed at four corners of the dome 33. Specifically, as shown in fig. 4, the pad part 331 may include a first auxiliary pad 3313 and a second auxiliary pad 3314. The first auxiliary pad 3313 and the second auxiliary pad 3314 are provided at two corners of the ball top 33 except for the first pad 3311 and the second pad 3312, respectively. The first auxiliary pad 3313, the second auxiliary pad 3314, the first pad 3311 and the second pad 3312 are identical in external dimensions.

That is, the pad part 331 may include a conductive pad for electrical connection with the lead part and an auxiliary pad functioning as a weight with the conductive pad such that the mass distribution of the dome 33 is uniform. The conductive pads may include first and second pads 3311 and 3312 disposed in electrical connection with the lead portion, and the auxiliary pads may include first and second auxiliary pads 3313 and 3314. It will be appreciated that since the first auxiliary pad 3313 and the second auxiliary pad 3314 are respectively disposed at two corners of the ball top 33 except for the first pad 3311 and the second pad 3312, the first auxiliary pad 3313, the second auxiliary pad 3314, the first pad 3311 and the second pad 3312 are identical in external dimension. By the arrangement, the projection of the dome 33 on the plane perpendicular to the vibration direction of the diaphragm 32 is formed into an axisymmetric pattern or a centrosymmetric pattern, so that the mass distribution of the dome 33 is uniform, the vibration stability of the diaphragm assembly 31 is further ensured, and the polarization occurrence is reduced.

Further, in some embodiments of the present utility model, the dome 33 may further include a first communication opening and a second communication opening disposed diagonally. The first communicating opening and the second communicating opening are through holes formed in the dome 33 and adjacent to the outer edge of the dome 33, and the through holes extend to the outer edge of the dome 33. The appearance and the size of the first communicating opening are consistent with those of the second communicating opening. The first communicating opening and the second communicating opening are diagonally arranged. It can be appreciated that, because the voice coil 34 is wound in a winding manner, in the connection process, the lead portion of the voice coil 34 occupies the space of the sound generating device 100 along the vibration direction of the diaphragm 32 in the arrangement process, and the lead portion of the voice coil 34 can be disposed inside the first communication opening and the second communication opening 3316 by disposing the first communication opening and the second communication opening, so that the matching structure of the lead portion and the dome 33 is more compact and the structural stability is better.

As shown in fig. 2 and 5, in some embodiments of the present utility model, the diaphragm 32 is formed in a square structure, and the conductive film sheet 322 further includes a first auxiliary conductive film 3223 and a second auxiliary conductive film 3224. As shown in fig. 5, the first conductive film 3221, the second conductive film 3222, the first auxiliary conductive film 3223, and the second auxiliary conductive film 3224 may be disposed at four corners of the diaphragm 32, that is, at four corners of the body 321 of the diaphragm 32. Among them, the first auxiliary conductive film 3223 and the second auxiliary conductive film 3224 have the same outline and size as the first conductive film 3221 and the second conductive film 3222. By the arrangement, the mass distribution of the vibrating diaphragm 32 can be ensured to be uniform, and the vibrating diaphragm can be kept stable in the vibrating process. It is understood that, in order to further ensure uniformity of mass distribution of the diaphragm 32, materials of the first auxiliary conductive film 3223, the second auxiliary conductive film 3224, the first conductive film 3221 and the second conductive film 3222 are also the same.

According to some embodiments of the present utility model, the conductive film 322 and the body 321 of the diaphragm 32 may be manufactured by integral injection molding or hot press molding, so that the connection stability between the conductive film 322 and the body 321 is improved, and detachment of the conductive film 322 and the body 321 is avoided. In other embodiments, the conductive film 322 and the body 321 may be connected by an adhesive, so that the process is simple and convenient, and the processing efficiency of the diaphragm 32 can be improved. In other embodiments, the conductive film 322 may be formed by applying a conductive paste to a surface of the body 321. Specifically, the conductive film 322 may be formed by applying conductive paste to a surface of the body 321 facing the magnetic circuit 2. The conductive paste can be mixed paste formed by conductive particles such as silver powder and glue. By the arrangement, the processing efficiency of the conductive film 322 can be improved, and the electrical connection stability is higher.

As shown in fig. 4, according to some embodiments of the present utility model, the dome 33 may be provided with a downwardly concave fitting groove 333, a portion of the diaphragm 32 connected to the dome 33 is located in the fitting groove 333, and the conductive membrane 322 is located between the body 321 and the dome 33. Specifically, the dome 33 may include a main body 332, a portion of the main body 332 is recessed downward to form a mating groove 333, and the body 321 of the diaphragm 32 and the conductive diaphragm 322 may be sequentially stacked in the mating groove 333, where the conductive diaphragm 322 is located between the body 321 of the diaphragm 32 and a bottom wall of the mating groove 333 of the dome 33, and a side of the body 321 of the diaphragm 32 away from the conductive diaphragm 322 may be located in the same plane as a side of the dome 33 away from the voice coil 34. Therefore, through the arrangement, the matching structure between the diaphragm 32 and the dome 33 can be more compact, the Z-direction space occupied by the diaphragm assembly 31 is reduced, and the amplitude of the diaphragm assembly 31 can be increased.

An electronic apparatus according to an embodiment of the second utility model includes the sound generating device 100 according to the above-described embodiment of the utility model. Alternatively, the electronic device may be a mobile phone, PAD, notebook computer, or the like.

According to the electronic equipment provided by the embodiment of the utility model, the sounding device 100 is arranged, the sounding device 100 cancels the setting of the centering support piece, the internal space is saved, the magnetic circuit system 2 can realize the maximum design, the electrical connection stability is improved, the tone quality of the electronic equipment can be effectively improved, and the miniaturized design requirement of the electronic equipment can be met.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplify the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between the two components. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A sound emitting device, comprising:

a housing;

the magnetic circuit system is arranged on the shell and is provided with a magnetic gap;

the vibration system comprises a vibration film assembly and a voice coil, wherein the vibration film assembly comprises a vibration film and a ball top, the vibration film comprises a body and a conductive film, the body and the conductive film are arranged in a laminated mode, the ball top is connected with the central position of the vibration film, one end of the voice coil is connected with the vibration film assembly, and the other end of the voice coil is inserted into the magnetic gap;

the conductive diaphragm is arranged on one side of the body, which is close to the voice coil, the top of the ball is provided with a bonding pad part, and the lead part of the voice coil and the conductive diaphragm are connected in series through the bonding pad part.

2. The sound generating apparatus according to claim 1, wherein the pad portion includes a first side provided on a side of the dome near the voice coil and a second side provided on a side of the dome away from the voice coil, the first side being electrically connected to the voice coil, the second side being electrically connected to the conductive diaphragm.

3. The sound emitting apparatus of claim 2 wherein a conductive adhesive is disposed between the second side and the conductive diaphragm.

4. The sound generating apparatus according to claim 2, wherein the housing is provided with a wire inlet terminal and a wire outlet terminal, the wire lead portion includes a first wire and a second wire, the conductive film includes a first conductive film and a second conductive film, the pad portion includes a first pad and a second pad, the second side of the first pad is electrically connected to the wire inlet terminal through the first conductive film, the first side of the first pad is electrically connected to the first wire, the first side of the second pad is electrically connected to the second wire, and the second side of the second pad is electrically connected to the wire outlet terminal through the second conductive film.

5. The sound generating apparatus according to claim 4, wherein the dome is formed in a square structure, the dome includes a first straight edge and a second straight edge connected end to end, a corner is formed at a connection of the first straight edge and the second straight edge, the first bonding pad and the second bonding pad are respectively disposed at a corner position of the dome, wherein,

the first bonding pad and the second bonding pad are diagonally arranged;

or, the first bonding pad and the second bonding pad are positioned at two sides of the first straight edge;

or, the first bonding pad and the second bonding pad are positioned at two sides of the second straight edge.

6. The sound generating apparatus according to claim 5, wherein the pad part further comprises two auxiliary pads, the two auxiliary pads are identical to the first pad and the second pad in external dimensions, and the two auxiliary pads, the first pad and the second pad are respectively disposed at four corners of the dome.

7. The sound generating apparatus according to claim 4, wherein the diaphragm is formed in a square structure, the conductive film further includes two auxiliary conductive films, the auxiliary conductive films are identical to the first conductive film and the second conductive film in external dimensions, and the first conductive film, the second conductive film and the two auxiliary conductive films are respectively disposed at four corners of the body.

8. The sound emitting device of any one of claims 1-7, wherein the conductive diaphragm is integrally injection molded/hot pressed with the body;

or, the conductive membrane is connected with the body in an adhesive manner;

or, the conductive film is formed by coating conductive paste on the surface of the body.

9. The sound emitting device of any one of claims 1-7, wherein the dome is provided with a downwardly concave mating groove, a portion of the diaphragm connected to the dome is located in the mating groove, and the conductive diaphragm is located between the body and the dome.

10. An electronic device comprising the sound emitting apparatus according to any one of claims 1 to 9.