CN221768265U - Sounding device - Google Patents

Abstract

The embodiment of the utility model discloses a sound generating device which comprises a vibrating diaphragm, a bracket, a magnetic circuit system and a voice coil. The support is wound on the outer side of the vibrating diaphragm and provides support for the vibrating diaphragm, the magnetic circuit system is arranged on one side of the support and is configured in a magnetic gap area, and the voice coil is arranged in the magnetic gap area formed by the magnetic circuit system to drive the vibrating diaphragm to vibrate. The vibrating diaphragm includes two at least electrically conductive portions that mutual interval set up, and the voice coil is connected with electrically conductive portion electricity, and the support is connected with insulating portion, and electrically conductive portion is connected with external power source from support one side to electrically conductive portion switches on voice coil and external power source. According to the embodiment of the utility model, through the structure, the conductive part is integrated in the vibrating diaphragm, and the voice coil is conducted by using the conductive part, so that the sound generating device has a simpler conducting structure, lower production cost and higher durability.

Description

Sounding device

Technical Field

The utility model relates to the technical field of electroacoustic transducer devices, in particular to a sound generating device.

Background

A speaker is a device for converting an electric signal into sound, and is commonly used in equipment such as a sound box and a mobile phone. The sound production of the loudspeaker requires that an electric signal is supplied to a voice coil provided in a magnetic field, and when a current passes through the voice coil, the voice coil is vibrated by the lorentz force, thereby driving a diaphragm and a dome connected to the voice coil to produce sound.

Currently, the speaker voice coil is conducted to a pad through a wire or to other circuits using an FPC (Flexible Printed Circuit, flexible printed circuit board). When the voice coil is conducted by the lead, vibration of the loudspeaker can cause the lead to collide with other parts, so that the lead is broken or noise is generated by the loudspeaker. When the FPC is adopted to conduct the voice coil, the FPC circuit board is required to be arranged in the loudspeaker, so that additional working procedures are added, a more complex production process is realized, the production cost is increased, and the final finished product is high in price.

Disclosure of utility model

Accordingly, an object of the present utility model is to provide a sound generating device, which is capable of conducting a voice coil and an external power source while ensuring high durability and low production cost of the whole sound generating device.

The embodiment of the utility model provides a sound generating device, which comprises: the vibrating diaphragm comprises at least two conductive parts which are arranged at intervals; the support is wound on the outer side of the vibrating diaphragm, and the outer peripheral side of the vibrating diaphragm is connected to the support; the magnetic circuit system is arranged on one side of the bracket and is configured to form a magnetic gap area; a voice coil disposed in a magnetic gap region formed by the magnetic circuit system to drive the vibration of the diaphragm; wherein, the electric conduction part is electrically connected with the voice coil and an external power supply. Further, the vibrating diaphragm further comprises an insulating part, the conducting part is arranged on the insulating part, and the outer periphery side of the insulating part is connected with the support.

Further, the sound generating device further comprises a ball top, the vibrating diaphragm is annular and is wound on the outer side of the ball top, and the voice coil is arranged on one side of the ball top.

Further, the conductive parts and the insulating parts are alternately arranged and enclose a vibrating diaphragm,

Further, the conductive part comprises a first outer fixed end, a first connecting structure and a first inner fixed end, the first connecting structure is connected with the first outer fixed end and the first inner fixed end, the insulating part comprises a second outer fixed end, a second connecting structure and a second inner fixed end, and the second connecting structure is connected with the second outer fixed end and the second inner fixed end; the first outer fixed end and the second outer fixed end are surrounded to form an outer fixed structure connected with the bracket, and the first inner fixed end and the second inner fixed end are surrounded to form an inner fixed structure connected with the ball top.

Further, one side of the ball top close to the voice coil is provided with a conducting structure, one end of the conducting structure extends into the space between the voice coil and the ball top, and the other end of the conducting structure is connected with the first inner fixed end.

Further, the internal fixation structure is respectively attached to a first surface of the dome close to the voice coil, a second surface of the dome far away from the voice coil, and a third surface connecting the first surface and the second surface.

Further, the insulating part is provided with a first surface and a second surface which are oppositely arranged, the first surface is abutted against the ball top, and the second surface is provided with a conductive part.

Further, the vibrating diaphragm is far away from one end of the support and extends to the space between the top of the ball and the voice coil, and the conducting part is abutted with the voice coil.

Further, the support comprises a connecting piece, the connecting piece is arranged corresponding to the conductive part, and the connecting piece is electrically connected with the conductive part.

Further, the vibrating diaphragm partially wraps the bracket, the vibrating diaphragm is near the voice coil side by the bracket extending to the side of the bracket away from the voice coil.

Further, the conductive portion includes a conductive base material and conductive particles dispersed in the conductive base material, the conductive particles being dispersed in the conductive base material.

Further, the conductive substrate is silica gel, the conductive particles are one or more of gold, silver, copper, zinc and graphite, and the conductive particles are in a linear structure and/or a sheet structure.

The embodiment of the utility model discloses a sound generating device which comprises a vibrating diaphragm, a bracket, a magnetic circuit system and a voice coil. The support is arranged on the outer side of the vibrating diaphragm and provides support for the vibrating diaphragm, and the voice coil drives the vibrating diaphragm to vibrate in a magnetic gap area formed by the magnetic circuit system. The vibrating diaphragm comprises at least two conductive parts which are arranged at intervals, and the conductive parts conduct the voice coil and an external power supply. According to the embodiment of the utility model, through the structure, the conductive part is arranged in the vibrating diaphragm, and the voice coil is conducted by using the conductive part, so that the sound generating device has a simpler conducting structure, lower production cost and higher durability.

Drawings

The above and other objects, features and advantages of the present utility model will become more apparent from the following description of embodiments of the present utility model with reference to the accompanying drawings, in which:

FIG. 1 is an exploded view of a sound emitting device according to a first embodiment of the present utility model;

FIG. 2 is a cross-sectional view of a sound emitting device according to a first embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a sound emitting device according to a second embodiment of the present utility model;

FIG. 4 is a cross-sectional view of a sound emitting device according to a third embodiment of the present utility model;

FIG. 5 is a cross-sectional view of a sound emitting device according to a fourth embodiment of the present utility model;

Fig. 6 is an exploded view of a sound emitting device according to a fourth embodiment of the present utility model.

Reference numerals illustrate:

1-a vibrating diaphragm; 11-a conductive part; 111-a first outer fixed end; 112-a first connection structure; 113-a first inner fixed end; 12-an insulating part; 121-a second outer fixed end; 122-a second connection structure; 123-a second inner fixed end; 124-hollowing; 13-an external fixation structure; 131-a third connecting piece; 132-fourth connecting piece; 14-an internal fixation structure; 141-a first connecting piece; 142-a second connecting piece;

2-a bracket; 21-a connector; 22-auxiliary connection structure;

3-dome; 31-conducting structure;

4-voice coil.

Detailed Description

The present application is described below based on examples, but the present application is not limited to only these examples. In the following detailed description of the present application, certain specific details are set forth in detail. The present application will be fully understood by those skilled in the art without the details described herein. Well-known methods, procedures, flows, components and circuits have not been described in detail so as not to obscure the nature of the application.

Moreover, those of ordinary skill in the art will appreciate that the drawings are provided herein for illustrative purposes and that the drawings are not necessarily drawn to scale.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured" and the like should be construed broadly, as they may be fixed, removable, or integral, for example; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

Spatially relative terms, such as "inner," "outer," "lower," "upper," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that spatially relative terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the example term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Unless the context clearly requires otherwise, the words "comprise," "comprising," and the like throughout the application are to be construed as including but not being exclusive or exhaustive; that is, it is the meaning of "including but not limited to".

In the description of the present application, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present disclosure, it should be noted that, without conflict, embodiments of the present disclosure and features of the embodiments may be combined with each other.

Fig. 1 is an exploded schematic view of a sound generating device according to a first embodiment of the present utility model, and fig. 2 is a cross-sectional view of a sound generating device according to a first embodiment of the present utility model. As shown in fig. 1 and 2, the sound generating apparatus includes a diaphragm 1, a bracket 2, a magnetic circuit system, and a voice coil 4. The support 2 is wound on the outer side of the diaphragm 1 and is connected with the peripheral edge of the diaphragm 1, so that the support 2 supports the diaphragm 1. The diaphragm 1 comprises at least two conductive portions 11 arranged at a distance from each other. The conductive portions 11 are electrically connected to the voice coil 4 and an external power source, respectively, to thereby conduct the voice coil 4 and supply an electric signal to the voice coil 4 so that the voice coil vibrates in a magnetic gap region formed by the magnetic circuit system to drive the diaphragm. After the conductive part 11 conducts the voice coil 4, the voice coil 4 is subjected to lorentz force to move, and the voice coil 4 drives the vibrating diaphragm 1 to vibrate together, so that the sounding device sounds.

Further, the diaphragm 1 further includes an insulating portion 12, the conductive portion 11 is disposed on the insulating portion 12, the outer peripheral side of the insulating portion 12 is connected with the support 2, since the left and right sides of the voice coil 4 need to be connected with positive and negative power supplies, in order to prevent the voice coil 4 from shorting, the two conductive portions 11 must be connected through the insulating portion 12, and the insulating portion 12 is connected with the support 2, so that the connection area between the diaphragm 1 and the support 2 is increased, and stability of the sound generating device is provided.

Further, sound generating mechanism still includes dome 3, and vibrating diaphragm 1 is cyclic annular and around locating dome 3 outside, and voice coil loudspeaker voice coil 4 sets up in dome 3's one side, in order to increase vibrating diaphragm 1 piston translation's rigidity, adds dome 3 at vibrating diaphragm 1's inner circle, sets up layer annular structure with vibrating diaphragm 1.

Further, the insulating portion 12 is made of a flexible and insulating material, such as silicone rubber, or the like. The conductive portion 11 is a composite conductive material composed of conductive particles uniformly dispersed in a conductive base material. In the present embodiment, the material of the conductive base material is the same as that of the insulating portion 12, so that the conductive portion 11 and the insulating portion 12 are easily bonded. The conductive particles are one or more of gold, silver, copper, zinc and graphite. To further enhance the conductive performance of the conductive portion 11, the conductive particles are in a linear structure and/or a sheet structure. After the conductive composite material using the sheet structure and/or the conductive particles of the sheet structure is cured, the conductive particles inside the conductive composite material are mainly in line contact and/or surface contact, and the contact has a larger contact area, so that the conductive part 11 has smaller and more stable resistivity, the risk of overheat of the conductive part 11 is reduced, the energy loss is reduced, and the energy utilization rate is increased. And, the conductive particles of the linear structure and the sheet structure are smaller in volume than the granular conductive particles in the case of the same particle base area. That is, the conductive particles of the linear and/or sheet-like structure can reduce the volume of the conductive particles incorporated in the conductive portion 11, and reduce the manufacturing cost of the conductive portion 11. In addition, the conductive particles having a linear and/or sheet-like structure in the solidified conductive portion 11 can enhance the structural strength of the conductive portion 11. The material and shape of the conductive particles are determined according to specific requirements, and only a single material and a single shape of conductive particles may be used, or a mixture of multiple materials and/or multiple shapes of conductive particles may be used as the conductive particles of the conductive portion 11.

In the first embodiment, the conductive portions 11 and the insulating portions 12 are each of an approximately arc-shaped structure, and the plurality of conductive portions 11 and the insulating portions 12 are alternately arranged and enclose the diaphragm 1. As shown in fig. 1, the diaphragm 1 includes two insulating portions 12 having a longer arc length and two conductive portions 11 having a shorter arc length. Each of the conductive parts 11 includes a first outer fixing end 111, a first connection structure 112, and a first inner fixing end 113, the first connection structure 112 connecting the first outer fixing end 111 and the first inner fixing end 113. Each of the insulating parts 12 includes a second outer fixing end 121, a second connection structure 122, and a second inner fixing end 123, and the second connection structure 122 connects the second outer fixing end 121 and the second inner fixing end 123. The shape of the side edges of the first outer fixing end 111 and the second outer fixing end 121 are the same, so that the plurality of first outer fixing ends 111 and the plurality of second outer fixing ends 121 can enclose an annular outer fixing structure 13, and the outer fixing structure 13 is connected with the bracket 2. The shape of the side edges of the first inner fixing end 113 and the second inner fixing end 123 are the same, so that the plurality of first inner fixing ends 113 and the plurality of second inner fixing ends 123 enclose an annular inner fixing structure 14, and the inner fixing structure 14 is connected with the outer edge of the dome 3. The first connecting structure 112 and the second connecting structure 122 have the same bending structure, so that the voice coil 4 can better drive the dome 3 to move when vibrating. In the present embodiment, the first connection structure 112 and the second connection structure 122 each have two curved surfaces that are connected and curved in opposite directions.

In this embodiment, the dome 3 is a sheet-like structure, the face of the sheet-like structure perpendicular to the axial direction of the voice coil 4 is rectangular with rounded corners, and the internal fixing structure 14 has an annular structure that matches the dome 3 and completely wraps the outer edge of the rounded rectangular shape of the dome 3. As shown in fig. 2, the inner fixing structure 14 is provided with a first connecting piece 141 and a second connecting piece 142 protruding toward the dome 3, and the first connecting piece 141 and the second connecting piece 142 jointly clamp the outer edge of the dome 3. The outer edge of the dome 3 includes a first face close to the voice coil 4, a second face far from the voice coil 4, and a third face connecting the first face and the second face. The first connecting piece 141 is attached to the edge of the first surface, and the second connecting piece 142 is attached to the edge of the second surface. The first connecting piece 141 and the second connecting piece 142 are attached to the third surface of the dome 3 at the point where they are connected to each other. The internal fixation structure 14 promotes the reliability of the connection between the diaphragm 1 and the dome 3 by being attached to the three faces of the dome 3. The surface of one side of the dome 3 close to the voice coil 4 is provided with a conducting structure 31, and the conducting structure 31 is arranged at a position of the dome 3 close to the edge. The conductive structures 31 are disposed corresponding to the conductive portions 11, and the width of the conductive structures 31 is equal to or smaller than the width of the conductive portions 11. One end of the conducting structure 31 extends into the space between the voice coil 4 and the dome 3 and is conducted with the lead wire of the voice coil 4, and the other end of the conducting structure 31 is connected with the first inner fixed end 113 of the conducting part 11 and is conducted, so that the conducting part 11 and the voice coil 4 are conducted through the conducting structure 31. In this embodiment, the conducting structure 31 may be made of copper, nickel, or other metals, and the conducting structure 31 is disposed on the dome 3 in the form of a coating or a plating layer. The conductive structure 31 may also be a simple FPC, which is glued or soldered to the dome 3. The wire inlet and outlet of the voice coil 4 is soldered to the conductive structure 41.

Further, the dome 3 may be made of conductive material or insulating material. When the dome 3 is made of a conductive material, an insulating film (not shown) is disposed between the dome 3 and the conducting structure 31, and the insulating film can prevent the conducting structure 31 from being conducted with the voice coil 4, and the dome 3 is conducted by the charged conducting structure 31. When the dome 3 is made of an insulating material, the conducting structure 31 is directly disposed on the surface of the dome 3.

The support 2 is an annular structure with certain rigidity, and the support 2 is connected with the outer side edge of the outer fixing structure 13, so that the vibrating diaphragm 1 is supported. In the first embodiment of the present utility model, the connection member 21 made of a conductive material such as metal or alloy is provided inside the bracket 2. The bracket 2 is injection molded, and the connecting pieces 21 are arranged in the injection molding process, and the arrangement positions and the arrangement number of the connecting pieces 21 correspond to those of the conductive parts 11. In this embodiment, two connectors 21 are provided in the bracket 2, one on each of the longer sides of the bracket 2. The connector 21 has an "L" shape, and one end of the "L" is exposed from the inside of the bracket 2 and is attached to the conductive portion 11, and one end of the "L" is exposed from the side wall of the bracket 2 adjacent to the inner wall and is connected to an external power source (not shown). When the external fixation structure 13 is connected with the bracket 2, the conductive part 11 abuts against the connection member 21 and is electrically connected with the connection member 21, so that the conductive part 11 communicates with the external power source and the voice coil 4 through the connection member 21.

Further, the support 2 has an auxiliary connection structure 22 on a side close to the diaphragm 1, and the auxiliary connection structure 22 includes a groove near the connecting member 21 and a protrusion on a side of the groove far from the connecting member 21. The external fixing structure 13 extends into the groove and is provided with a recess corresponding to the protrusion, and the contact area between the external fixing structure 13 and the bracket 2 can be increased by the arrangement of the structure, so that the connection between the bracket 2 and the external fixing structure 13 is more compact. Due to the fact that the groove is formed in the side, close to the connecting piece 21, of the conducting portion 11, the contact area of the conducting portion 11 and the connecting piece 21 can be increased, and conducting stability between the conducting portion and the connecting piece is improved.

Fig. 3 is a cross-sectional view of a sound generating apparatus according to a second embodiment of the present utility model. In the second embodiment, the structure of the internal fixing structure 14 of the diaphragm 1 and the structure of the dome 3 are the same as those of the first embodiment, and will not be described again here. In the second embodiment, the bracket 2 is not provided with the connecting piece 21, the outer fixing structure 13 partially wraps the bracket 2, and the first outer fixing end 111 in the outer fixing structure 13 wrapping the bracket 2 is directly connected with an external power source (not shown in the figure), so that the structure and the manufacturing process of the bracket 2 are simplified. As shown in fig. 3, the support 2 includes a first surface near one side of the diaphragm 1, a second surface far from the diaphragm 1, and a third surface connecting the first surface and the second surface, the third surface being a surface relatively far from one side of the voice coil 4 in the drawing (a top surface of the support 2 in fig. 3), and the support 2 further includes an auxiliary connection structure 22 provided at a junction of the first surface and the third surface. The external fixing structure 13 includes a third connecting piece 131 and a fourth connecting piece 132, the third connecting piece 131 wraps the second face and the third face of the bracket 2, and the fourth connecting piece 132 covers the first face. The connection part of the third connection piece 131 and the fourth connection piece 132 is attached to the auxiliary connection structure 22. In this embodiment, the auxiliary connection structure 22 has a groove near the side wall of the bracket 2 and a protrusion provided on the side of the groove away from the bracket 2. The external fixing structure 13 stretches into the groove and wraps the protrusion, so that the contact area between the external fixing structure 13 and the support 2 is increased, and the connection strength between the external fixing structure 13 and the support 2 is improved.

Fig. 4 is a cross-sectional view of a sound emitting device according to a third embodiment of the present utility model. In the third embodiment, the connection structure of the outer fixing structure 13 of the diaphragm 1 and the bracket 2 is the same as that of the first embodiment. The dome 3 of the third embodiment is a monolithic circuit board, and the dome 3 includes a first face close to the voice coil 4, a second face far from the voice coil 4, and a third face connecting the first face and the second face. The circuit structure of the dome 3 may be provided only on the first face or on both the first face and the second face. The inner fixing structure 14 is provided with a first connecting piece 141 and a second connecting piece 142 protruding towards the direction of the ball top 3, and the first connecting piece 141 and the second connecting piece 142 jointly clamp two opposite surfaces of the ball top 3. The first connecting piece 141 is attached to the edge of the first surface, and the second connecting piece 142 is attached to the edge of the second surface. The first connecting piece 141 and the second connecting piece 142 are attached to the third surface of the dome 3 at the point where they are connected to each other. The first connection piece 141 promotes the reliability of connection between the diaphragm 1 and the dome 3 by being attached to three sides of the dome 3. When the dome 3 is provided with the circuit structure on the first surface only, the second connecting piece 142 only plays a role in connection and fixation, and when the dome 3 is provided with the circuit structure on both the first surface and the second surface, the internal fixation structure 14 with the first connecting piece 141 and the second connecting piece 142 is conducted with the circuit structure from both sides simultaneously. The first surface of the dome 3 is abutted against the voice coil 4, and the lead wire of the voice coil 4 is conducted with the circuit structure on the dome 3, so that the dome 3 directly conducts the conductive part 11 and the voice coil 4. In the third embodiment, the conduction structure 31 is not provided in the sound generating device, so that the sound generating device has a simpler structure, and the manufacturing steps of the sound generating device are simpler.

In the first to third embodiments, when forming the diaphragm 1, it is only necessary to inject the composite conductive material doped with conductive particles constituting the conductive portion 11 and the insulating material constituting the insulating portion 12 into the mold step by step. The setting sequence of the conductive composite material and the insulating material is determined according to actual production requirements, but the former material is required to be solidified and then the latter material is required to be injected, so that the conductive composite material and the insulating material are prevented from being mixed. Because the conductive base material in the conductive composite material and the insulating material forming the insulating part 12 are made of the same material, the conductive part 11 and the insulating part 12 formed in the same die in sequence have better connection.

Fig. 5 is a cross-sectional view of a sound emitting device according to a fourth embodiment of the present utility model, and fig. 6 is an exploded schematic view of the sound emitting device according to the fourth embodiment of the present utility model. In the fourth embodiment, the insulating portion 12 has a ring-like structure, and the ring-like structure may be in the shape of a circular ring, an elliptical ring, a rounded rectangular ring as shown in fig. 6, or the like. The annular insulating portion 12 has a first surface and a second surface which are disposed opposite to each other, the first surface being in contact with the dome 3, and the second surface being provided with a conductive portion 11. In this embodiment, the insulating portion 12 may be PEEK (Polyetheretherketone) or TPU (Thermoplastic Urethane, thermoplastic polyurethane elastomer). In producing the diaphragm 1, the insulating portion 12 is first provided, and then the conductive portion 11 is molded or sprayed on a predetermined position of the molded insulating portion 12. The insulating portion 12 is thinner near the voice coil 4, and the conductive portion 11 provided on the insulating portion 12 is thinner, so that one end of the diaphragm 1 near the voice coil 4 can directly extend between the dome 3 and the voice coil 4, and the conductive portion 11 abuts against the voice coil 4. In the sound generating apparatus provided in the fourth embodiment, the conductive structure 31 is not required, and the voice coil 4 is directly conductive to the conductive portion 11 of the diaphragm 1. In the present embodiment, each of the first connection structure 112 and the second connection structure 122 has a curved surface curved to a side away from the voice coil 4.

Further, the insulating portion 12 has a hollow 124 in a region where the conductive portion 11 is disposed in a predetermined manner, the conductive portion 11 is partially disposed in the hollow 124, and the thickness of the conductive portion 11 located in the hollow 124 is the same as the thickness of the peripheral insulating portion 12, so that the volume of the conductive portion 11 can be increased, the resistance of the conductive portion 11 can be reduced, the heat generation of the conductive portion 11 can be reduced, and the bearing capacity of the conductive portion 11 can be increased, so that the electric energy transmission when the conductive portion 11 is conducted on the voice coil 4 is more stable.

In the first to fourth embodiments of the present utility model, the diaphragm 1 has two conductive portions 11, and the two conductive portions 11 are respectively disposed in the middle of the long sides of the diaphragm 1. In other embodiments, the number and the arrangement positions of the conductive parts 11 are determined according to the use requirement, and are not limited to any position of any side edge of the diaphragm, so that the design of the lead position of the voice coil and the terminal position of the external power supply can be more free and simple.

The embodiment of the utility model discloses a sound generating device which comprises a vibrating diaphragm, a bracket, a magnetic circuit system and a voice coil. The vibrating diaphragm includes two at least electrically conductive portions that mutual interval set up, can reduce the space that switches on the structure and occupy with electrically conductive portion integration on the vibrating diaphragm for other parts have bigger space in the sound generating mechanism. The conductive base material in the conductive composite material forming the conductive part has toughness, so that the risk of fracture of the conductive part can be avoided, and the product reliability of the sounding device is improved. And the conductive part has a larger area and small internal resistance, so that the energy utilization rate is improved.

According to the embodiment of the utility model, through the structure, the conductive part is integrated in the vibrating diaphragm, and the voice coil is conducted by using the conductive part, so that the sound generating device has a simpler conducting structure, lower production cost and higher durability.

The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, and various modifications and variations may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (11)

1. A sound emitting device, the sound emitting device comprising:

A diaphragm (1) comprising at least two conductive portions (11) arranged at a distance from each other;

The support (2) is wound on the outer side of the vibrating diaphragm (1), and the outer peripheral side of the vibrating diaphragm (1) is connected to the support (2);

A magnetic circuit system provided on one side of the bracket (2) and arranged to form a magnetic gap region;

A voice coil (4) arranged in a magnetic gap area formed by the magnetic circuit system to drive the vibrating diaphragm (1) to vibrate;

wherein the conductive part (11) is electrically connected with the voice coil (4) and an external power supply.

2. Sound-emitting device according to claim 1, characterized in that the diaphragm (1) further comprises an insulating part (12), the conductive part (11) being arranged on the insulating part (12), the outer peripheral side of the insulating part (12) being connected to the holder (2).

3. Sound generating device according to claim 2, characterized in that the sound generating device further comprises a dome (3), the diaphragm (1) is ring-shaped and wound on the outside of the dome (3), and the voice coil (4) is arranged on one side of the dome (3).

4. A sound-emitting device according to claim 3, characterized in that the conductive portions (11) and the insulating portions (12) are alternately arranged and enclose the diaphragm (1).

5. The sound generating apparatus according to claim 4, wherein the conductive portion (11) includes a first outer fixed end (111), a first connecting structure (112) and a first inner fixed end (113), the first connecting structure (112) connects the first outer fixed end (111) and the first inner fixed end (113), the insulating portion (12) includes a second outer fixed end (121), a second connecting structure (122) and a second inner fixed end (123), and the second connecting structure (122) connects the second outer fixed end (121) and the second inner fixed end (123);

The first outer fixing end (111) and the second outer fixing end (121) enclose an outer fixing structure (13) connected with the support (2), and the first inner fixing end (113) and the second inner fixing end (123) enclose an inner fixing structure (14) connected with the dome (3).

6. Sound generating device according to claim 5, characterized in that the side of the dome (3) close to the voice coil (4) is provided with a conducting structure (31), one end of the conducting structure (31) extends into between the voice coil (4) and the dome (3), and the other end of the conducting structure (31) is connected with the first inner fixed end (113).

7. The sound generating apparatus according to claim 6, wherein the internal fixing structure (14) is attached to a first face of the dome (3) close to the voice coil (4), a second face of the dome (3) away from the voice coil (4), and a third face connecting the first face and the second face, respectively.

8. A sound generating device according to claim 3, characterized in that the insulating part (12) has a first surface and a second surface arranged opposite to each other, the first surface being in abutment with the dome (3), and the second surface being provided with a conductive part (11).

9. Sound generating device according to claim 8, characterized in that the end of the diaphragm (1) remote from the support (2) extends between the dome (3) and the voice coil (4), the conductive part (11) being in abutment with the voice coil (4).

10. The sound generating device according to any of claims 2-9, characterized in that the holder (2) comprises a connecting piece (21), the connecting piece (21) being arranged in correspondence with the conductive part (11), the connecting piece (21) being electrically connected with the conductive part (11).

11. Sound generating device according to any of claims 2-9, characterized in that the diaphragm (1) partly encloses the support (2), the diaphragm (1) extending from a side of the support (2) close to the voice coil (4) to a side of the support (2) remote from the voice coil (4).