CN204859538U - A diaphragm and speaker module - Google Patents

Abstract

The utility model discloses a vibrating diaphragm and speaker module, the vibrating diaphragm including be located the center plane portion, set up in the book ring portion at plane portion edge and with it is used for bonding the fixed part of shell at peripheral linking to each other to roll over ring portion, it has the ball top to paste in the plane portion of vibrating diaphragm, the vibrating diaphragm surface has the conducting wire, conducting wire one end electricity is connected the ball top, the other end of conducting wire is for reserving the earthing terminal for external circuit's earthing terminal is connected to the electricity. The technical scheme of the utility model through set up the conducting wire on the vibrating diaphragm surface, make conducting wire one end electricity connect the ball top, other end connected system external circuit's earthing terminal, the ground connection function of implementation system, the scheme in prior art of comparing, the utility model discloses a ground connection stability is better, can prevent external electromagnetic interference, guarantees line system steady job.

Description

A diaphragm and speaker module

technical field

The utility model relates to the technical field of electroacoustic products, in particular to a diaphragm and a speaker module.

Background technique

Traditional loudspeaker circuit systems are usually only divided into positive and negative poles and do not have a grounding function. When used at the end of the whole machine, it is often necessary to paste conductive foam, conductive cloth, etc. to make contact with the basin frame to realize the speaker grounding function. This grounding method will increase the difficulty of the whole machine assembly and make the whole machine assembly cumbersome. Moreover, this grounding method is realized by pressure contact, which is relatively poor in conduction stability.

Utility model content

In view of the above problems, the utility model is proposed in order to provide a vibrating membrane and a loudspeaker module that overcomes the above problems or at least partially solves the above problems. The technical solution of the utility model is achieved in this way:

On the one hand, the utility model provides a vibrating membrane, which includes a plane part located in the center, a ring part arranged on the edge of the plane part, and a fixing part connected to the periphery of the ring part for bonding the shell, so that The top of the ball is pasted on the flat part of the diaphragm; the surface of the diaphragm has a conductive line, one end of the conductive line is electrically connected to the top of the ball, and the other end of the conductive line is a reserved ground terminal for electrical connection Ground terminal for external circuits.

Preferably, the dome top is located on the same side of the diaphragm surface as the conductive trace.

Preferably, one end of the conductive line electrically connected to the ball top is arranged around the periphery of the plane part, the reserved grounding end of the conductive line is set at the fixed part, and the connecting parts at both ends of the conductive line It is arranged at the middle position of the surrounding ring part of the diaphragm.

Further preferably, there are four reserved ground terminals of the conductive circuit, and the four reserved ground terminals are respectively provided on four sides of the fixing part.

Preferably, the top of the ball is made of metal conductive material, or the surface of the top of the ball is electroplated or coated with a metal layer.

Further preferably, when the surface of the ball top is electroplated or coated with a metal layer, the metal layer is located on the upper surface of the ball top.

Preferably, the conductive circuit is provided on the surface of the diaphragm by means of electroplating, coating or injection molding.

The technical solution of the utility model realizes the grounding function of the system by setting a conductive circuit on the surface of the diaphragm, so that one end of the conductive circuit is electrically connected to the top of the ball, and the other end is connected to the grounding terminal of the external circuit of the system; compared with the prior art solution, the utility model The new type is simple to implement and has better grounding stability, which can prevent external electromagnetic interference and ensure the stable operation of the line system.

On the other hand, the utility model also provides a loudspeaker module, including a vibration system accommodated inside the housing; the vibration system includes a voice coil and the diaphragm provided by the above technical solution;

The positive pole and the negative pole of the speaker module are respectively connected to the positive pole and the negative pole of the voice coil, and the ground terminal of the speaker module is connected to the reserved ground terminal of the conductive circuit.

Preferably, the ground terminal of the speaker module is connected to the reserved ground terminal of the conductive line through a conductive spring.

Preferably, the positive pole of the speaker module is connected to the positive pole of the voice coil through a conductive spring, and/or the negative pole of the speaker module is connected to the negative pole of the voice coil through a conductive spring.

The technical scheme of the utility model realizes the grounding function of the speaker module through the conductive circuit on the surface of the diaphragm, the top of the diaphragm ball and the grounding end of the speaker module. The speaker module connection of the utility model has strong grounding stability, Moreover, the grounding conduction line realized by the conductive line on the surface of the diaphragm can prevent external electromagnetic interference and ensure the safe and stable operation of the module.

Description of drawings

Fig. 1 is the front view of the diaphragm provided by the embodiment of the utility model;

Fig. 2 is a cross-sectional view at AA in Fig. 1;

Fig. 3 is the partially enlarged schematic diagram of Fig. 2;

Fig. 4 is the loudspeaker schematic diagram that the utility model embodiment provides;

Fig. 5 is a schematic diagram of the status of the ground terminal of the loudspeaker connected to the reserved ground terminal of the diaphragm provided by the embodiment of the present invention;

In the figure: 1. plane part; 2. ring part; 3. fixed part; 4. ball top; 5. conductive line; 51. reserved grounding terminal; 52. connection part; Sound outlet; 61, the negative pole of the speaker module; 62, the positive pole of the speaker module; 63, the ground terminal of the speaker module; 64, the conductive spring.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model clearer, the implementation of the present utility model will be further described in detail below in conjunction with the accompanying drawings.

FIG. 1 is a front view of the diaphragm provided by the embodiment of the present invention, FIG. 2 is a cross-sectional view at AA in FIG. 1 , and FIG. 3 is a partially enlarged schematic diagram of FIG. 2 .

As shown in Figure 1 and Figure 2 together, the diaphragm of this embodiment includes a planar part 1 located at the center, a ring part 2 arranged on the edge of the planar part 1, and a fixing part connected to the periphery of the ring part 2 for bonding the shell Part 3.

As shown in Figure 2, a ball top 4 is pasted on the flat part 1 of the diaphragm; the surface of the diaphragm has a conductive line 5, one end of the conductive line 5 is electrically connected to the ball top 4, and the other end of the conductive line 5 is a reserved ground terminal 51, A ground terminal for electrical connection to an external circuit. Wherein, the ball top 4 and the conductive circuit 5 are located on the same side of the diaphragm surface, that is, if the ball top is pasted on the upper side of the diaphragm, the conductive circuit is arranged on the upper surface of the diaphragm; if the ball top is pasted on the lower side of the diaphragm , the conductive circuit is arranged on the lower surface of the diaphragm, so as to facilitate the electrical connection between the ball top and the conductive circuit.

As shown in Figure 1, one end of the electrically connected ball top 4 of the conductive circuit 5 is arranged around the periphery of the plane part to ensure the stability of the connection between the conductive circuit 5 and the ball top 4; the reserved grounding end 51 of the conductive circuit 5 is arranged on The fixing part 3 and the connection part 52 at both ends of the conductive circuit 5 are arranged at the middle position of the diaphragm ring part 3 to ensure the balance of the diaphragm.

As shown in Figure 1, there are four reserved ground terminals 51 of the conductive circuit 5 in this embodiment, and the four reserved ground terminals 51 are respectively arranged on the four sides of the fixed part 3, so that when the diaphragm is assembled , there is no need to distinguish the orientation of the diaphragm. In this embodiment, preferably, the four reserved ground terminals 51 are respectively arranged at the middle positions of the four sides of the fixing part 3 .

It can be understood that the number of reserved ground terminals of the conductive circuit in this embodiment can also be set to one, two or more, which can be specifically set according to usage requirements.

As shown in FIG. 3 , the ball top 4 in this embodiment can be made of metal conductive material. When the ball top 4 is made of metal, the surface of the ball top must be conductive and cannot be insulated. The ball top 4 can also be electroplated or coated with a metal layer on its surface. When the surface of the ball top 4 is electroplated or coated with a metal layer, the metal layer is located on the same upper surface of the ball top 4 without affecting the vibration of the ball top. In the case of the sticking stability of the flat part, avoid the separation of the metal layer and the conductive circuit from the top of the ball during the vibration process, and ensure the stability of the electrical connection between the conductive circuit and the metal layer on the top of the ball.

The conductive circuit 5 in this embodiment can be provided on the surface of the diaphragm by means of electroplating, coating or injection molding.

The vibrating membrane in this embodiment is provided with conductive lines on its surface, so that one end of the conductive line is electrically connected to the top of the ball, and the other end is connected to the grounding terminal of the external circuit of the system, so as to realize the grounding function of the system; compared with the existing technical solutions, this practical The new type is simple to implement and has better grounding stability, which can prevent external electromagnetic interference and ensure the stable operation of the line system.

Fig. 4 is a schematic diagram of a loudspeaker provided by an embodiment of the utility model, and Fig. 5 is a schematic diagram of a state in which the ground terminal of the speaker is connected to the reserved ground terminal of the diaphragm provided by the embodiment of the utility model.

As shown in Figure 4 and Figure 5 together, the embodiment of the utility model also provides a speaker module, including a vibration system housed inside the casing, the vibration system includes a voice coil and the diaphragm provided by the above embodiment;

As shown in FIG. 4 , the positive pole 62 and the negative pole 61 of the speaker module are respectively connected to the positive pole and the negative pole of the voice coil, and the ground terminal 63 of the speaker module is connected to the reserved ground terminal of the conductive circuit.

As shown in FIG. 5 , the ground terminal 63 of the speaker module is connected to the reserved ground terminal of the conductive line through a conductive spring 64 .

Preferably, the positive pole of the speaker module in this embodiment is connected to the positive pole of the voice coil through a conductive spring, and/or the negative pole of the speaker module is connected to the negative pole of the voice coil through a conductive spring.

It should be noted that the positive and negative poles of the speaker module in this embodiment can also be connected to the positive and negative poles of the voice coil by using existing technical solutions.

The loudspeaker module in this embodiment realizes the grounding function of the loudspeaker module through the conductive circuit on the surface of the diaphragm, the top of the diaphragm ball and the grounding end of the loudspeaker module. Sex, and the grounding conduction line realized by the conductive line on the surface of the diaphragm can prevent external electromagnetic interference and ensure the safe and stable operation of the module.

In summary, the embodiment of the present invention provides a diaphragm and a speaker module. By setting a conductive circuit on the surface of the diaphragm, one end of the conductive circuit is electrically connected to the top of the ball, and the other end is connected to the ground terminal of the external circuit of the system to realize The grounding function of the system; compared with the prior art solutions, the utility model is simple to implement and has better grounding stability, which can prevent external electromagnetic interference and ensure stable operation of the line system.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. All modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model are included in the protection scope of the present utility model.

Claims (10)

1. A vibrating membrane, comprising a plane part at the center, a ring part arranged on the edge of the plane part, and a fixing part connected to the periphery of the ring part for bonding the shell, characterized in that the vibrating The top of the ball is pasted on the flat part of the membrane; the surface of the diaphragm has a conductive line, one end of the conductive line is electrically connected to the top of the ball, and the other end of the conductive line is a reserved ground terminal for electrically connecting to an external circuit the ground terminal. 2. The diaphragm according to claim 1, wherein the dome top and the conductive traces are located on the same side of the diaphragm surface. 3. The diaphragm according to claim 2, characterized in that, one end of the conductive circuit electrically connected to the ball top is arranged around the periphery of the plane part, and the reserved grounding end of the conductive circuit is arranged on The fixing part and the connecting part at both ends of the conductive circuit are arranged at the middle position of the diaphragm ring part. 4. The diaphragm according to claim 1, characterized in that there are four reserved ground terminals of the conductive circuit, and the four reserved ground terminals are respectively provided on the four sides of the fixed part superior. 5 . The diaphragm according to claim 2 , wherein the ball top is made of metal conductive material, or the surface of the ball top is electroplated or coated with a metal layer. 6 . 6 . The diaphragm according to claim 5 , wherein when the surface of the ball top is electroplated or covered with a metal layer, the metal layer is located on the upper surface of the ball top. 7. The diaphragm according to any one of claims 1-6, wherein the conductive circuit is provided on the surface of the diaphragm by means of electroplating, cladding or injection molding. 8. A loudspeaker module, comprising a vibration system accommodated inside the casing; characterized in that, the vibration system comprises a voice coil and the diaphragm according to claims 1-7; The positive pole and the negative pole of the speaker module are respectively connected to the positive pole and the negative pole of the voice coil, and the ground terminal of the speaker module is connected to the reserved ground terminal of the conductive circuit. 9. The speaker module according to claim 8, wherein the ground terminal of the speaker module is connected to the reserved ground terminal of the conductive circuit through a conductive spring. 10. The speaker module according to claim 8, characterized in that, the positive pole of the speaker module is connected to the positive pole of the voice coil through a conductive spring, and/or the negative pole of the speaker module is connected through a conductive spring the negative pole of the voice coil.