CN204733377U - Voice coil line and with the voice coil loudspeaker voice coil of this voice coil line coiling and the loud speaker being provided with this voice coil loudspeaker voice coil - Google Patents

Abstract

The utility model discloses a voice coil wire, a voice coil wound with the voice coil wire and a loudspeaker provided with the voice coil, relates to the technical field of electroacoustic products, and includes a wire core with a conductive function. An insulating layer surrounds the outer circumference, and the voice coil wire further includes a layer of graphene, and the graphene layer also surrounds the outer circumference of the wire core. The voice coil wire of the utility model, the voice coil wound with the voice coil wire and the loudspeaker provided with the voice coil solve the technical problems in the prior art that the voice coil is of high quality and easy to be damaged. The voice coil wound by the voice coil wire and the voice coil in the loudspeaker provided with the voice coil are light in weight, low in power consumption, not easy to disconnect and burn out, which effectively improves the sensitivity of the loudspeaker and prolongs the service life of the loudspeaker.

Description

Voice coil wire, voice coil wound with the voice coil wire, and speaker provided with the voice coil

technical field

The utility model relates to the technical field of electroacoustic products, in particular to a voice coil wire, a voice coil wound with the voice coil wire and a loudspeaker provided with the voice coil.

Background technique

The loudspeaker is an important acoustic component in portable electronic equipment, which is used to convert sound wave electrical signals into sound signals, and is an energy conversion device. The loudspeaker usually includes a vibration system and a magnetic circuit system. The vibration system includes a combined diaphragm and a voice coil. The voice coil is the driving part of the speaker. When an alternating audio current passes through the voice coil, the voice coil produces a sound that changes with the audio current Magnetic field, this changing magnetic field attracts or repels the magnetic field of the loudspeaker magnetic circuit system, causing the voice coil to generate mechanical vibrations that cut the magnetic lines of force, thereby driving the diaphragm to vibrate and produce sound. The voice coil is made of voice coil wire. The current voice coil wire is mostly enameled wire. Its structure is shown in Figure 1. It is composed of a conductive core 10, an insulating layer 20 and a self-adhesive layer 30 from inside to outside. The enameled wire-wound voice coil installed in the speaker will have the following disadvantages:

1. Due to the weak strength of the existing enameled wire, the voice coil lead wire will be squeezed by the internal parts of the speaker during the speaker assembly process, or the voice coil lead wire will be broken due to excessive pulling force during the assembly process of the speaker, resulting in a complete loss of speaker performance.

2. At present, electronic equipment is developing in the direction of lightness and thinness, so higher requirements are put forward for its internal speakers, that is, it is required to have better acoustic performance, and it is required to have lighter weight and smaller size. Volume, the existing voice coil cannot take into account the improvement of the weight and volume of the speaker while ensuring the acoustic performance.

3. The existing enameled wire has poor thermal conductivity. The voice coil will generate heat when it cuts the magnetic force line up and down in the magnetic circuit system for electro-acoustic conversion. This heat is difficult to dissipate quickly. When the voice coil works for a long time, there is a risk of burning out .

Utility model content

In view of the above defects, the first technical problem to be solved by the utility model is to provide a voice coil wire, which has high strength, is not easy to break, has good thermal conductivity, and has the same resistance as the existing enameled wire. lighter.

Based on the same inventive idea, the second technical problem to be solved by the utility model is to provide a voice coil, which has good thermal conductivity, low power and light weight, which is beneficial to improve the sensitivity of the speaker.

Based on the same inventive idea, the third technical problem to be solved by the utility model is to provide a speaker with high sensitivity, light weight, low power consumption and long service life.

For solving above-mentioned first technical problem, the technical scheme of the utility model is:

A voice coil wire, comprising a wire core with a conductive effect, an insulating layer surrounds the outer periphery of the wire core, and the voice coil wire also includes a layer of graphene, and the graphene layer also surrounds the wire core peripheral.

As an implementation manner, the voice coil wire includes the wire core, the graphene layer and the insulating layer in sequence from the inside to the outside.

As another implementation manner, the voice coil wire includes the wire core, the insulating layer and the graphene layer in sequence from the inside to the outside.

Wherein, the outermost side of the voice coil wire is surrounded by a self-adhesive layer.

Wherein, the graphene layer is coated on the outer surface of the wire core or the insulating layer by a coating process.

For solving above-mentioned second technical problem, the technical scheme of the utility model is:

A voice coil, the voice coil is wound by a voice coil wire, and the voice coil wire is the above-mentioned voice coil wire.

For solving above-mentioned 3rd technical problem, the technical scheme of the utility model is:

A loudspeaker, comprising a vibrating system and a magnetic circuit system, the vibrating system comprising a combined diaphragm and a voice coil, the voice coil being the above-mentioned voice coil.

After adopting above-mentioned technical scheme, the beneficial effect of the utility model is:

Because the voice coil wire of the utility model also includes a layer of graphene, the graphene layer surrounds the outer periphery of the wire core. Graphene is currently the thinnest and hardest nanomaterial, and it is the material with the lowest resistivity. It has the characteristics of excellent electron transport, high toughness, high strength and high thermal conductivity. Based on the above-mentioned advantages of graphene, the voice coil wire comprising a graphene layer of the present invention has the following advantages compared with the traditional enameled wire:

1. Stronger and more resistant to damage, not easy to break;

2. To wind the voice coil with the same resistance value, the voice coil wound by the voice coil wire of the utility model is lighter in weight, which can effectively improve the sensitivity of the speaker;

3. The power loss of the wound voice coil is lower;

4. The wound voice coil has good heat dissipation performance, which effectively reduces the risk of voice coil burnout when the speaker works for a long time or has a high working power.

Since the voice coil of the utility model is made of the above-mentioned voice coil wire, the voice coil of the utility model has lead wires that are not easy to break compared with the traditional voice coil, good thermal conductivity, low power, and light weight, which is more conducive to improving the sensitivity of the speaker, etc. advantage.

Since the voice coil of the loudspeaker of the present invention is the above-mentioned voice coil, the loudspeaker of the present invention has the advantages of light weight, low power consumption, high sensitivity, low probability of voice coil burnout, and long service life.

In summary, the voice coil wire of the present invention, the voice coil wound with the voice coil wire and the loudspeaker provided with the voice coil solve the technical problems of the voice coil in the prior art, such as high quality and easy damage. The voice coil wire, the voice coil wound with the voice coil wire and the speaker equipped with the voice coil are light in weight, low in power consumption, not easy to break and burn out, which effectively improves the sensitivity of the speaker and prolongs the service life of the speaker. Speaker life.

Description of drawings

Fig. 1 is a structural schematic diagram of a voice coil wire in the prior art;

Fig. 2 is a structural schematic diagram of a voice coil wire according to an embodiment of the utility model;

Fig. 3 is the structural representation of the second voice coil wire of the utility model embodiment;

In the figure: 10, wire core, 20, insulating layer, 30, self-adhesive layer, 40, graphene.

Detailed ways

Below in conjunction with accompanying drawing and embodiment, further set forth the utility model.

Embodiment one:

As shown in FIG. 2 , a voice coil wire includes a conductive wire core 10 , and the material of the wire core 10 is usually metal such as copper or aluminum. A layer of graphene 40 is coated on the outer periphery of the wire core 10 , an insulating layer 20 is arranged around the outer periphery of the graphene 40 , and a self-adhesive layer 30 is arranged around the outer periphery of the insulating layer 20 .

As shown in Figure 2, graphene 40 is coated on the outer surface of wire core 10 by following coating process:

Add an active agent with a hydrophobic end and a hydrophilic end to the aqueous solution in advance, and then add graphene powder. The graphene particles with a hydrophobic surface interact with the hydrophobic end of the active agent, and the active agent wraps the graphene particles. At this time, the active agent is only hydrophilic. The water end and the hydrophilic end repel each other so that the graphene is uniformly dispersed to form a graphene aqueous solution. The graphene aqueous solution is coated on the outer surface of the wire core 10, that is, the coating of the graphene is completed, and the thickness of the coated graphene is relatively thin, which can reach the nanometer level. This coating process is a preferred mode of this embodiment, and is not limited to the above-mentioned coating process in actual production.

As shown in FIG. 2 , after the graphene 40 is coated on the outer periphery of the wire core 10 , and then the insulating layer and the self-adhesive layer are processed in a traditional way, the production and processing of the voice coil wire of the present invention can be completed. The processed voice coil wire has the advantages of high strength, not easy to break, good thermal conductivity, and lighter weight under the same resistance value as the existing enameled wire.

Embodiment two:

As shown in Figure 3, this embodiment is basically the same as Embodiment 1, the difference is that:

The outer periphery of the wire core 10 is provided with an insulating layer 20 , the outer periphery of the insulating layer 20 is coated with graphene 40 , and the outer periphery of the graphene 40 is provided with a self-adhesive layer 30 .

When processing the voice coil wire in this embodiment, the insulating layer 20 is processed on the outer periphery of the wire core 10 in the traditional way, and then the graphene 40 is coated on the outer surface of the insulating layer 20 by the coating process, and finally the self-adhesive layer is processed by the traditional process. Layer 30.

Embodiment three:

A voice coil, which is formed by winding the voice coil wire described in the first or second embodiment.

This voice coil has the advantages of not easy to break the lead wire, good thermal conductivity, low power, light weight, and more conducive to improving the sensitivity of the speaker.

Embodiment four:

A loudspeaker includes a vibrating system and a magnetic circuit system, and the vibrating system includes a vibrating membrane and a voice coil combined together. The voice coil is the voice coil described in the third embodiment.

This loudspeaker has the advantages of light weight, low power consumption, high sensitivity, low probability of voice coil burnout, and long service life.

The utility model is not limited to the above-mentioned specific implementation manners, and various transformations made by those skilled in the art starting from the above-mentioned ideas without creative work all fall within the protection scope of the utility model.

Claims (7)

1. voice coil line, comprises the core with electric action, and the peripheral ring of described core is wound with insulating barrier, it is characterized in that, described voice coil line also comprises a layer graphene, and described graphene layer is also looped around the periphery of described core.

2. voice coil line according to claim 1, is characterized in that, described voice coil line is followed successively by described core, described graphene layer and described insulating barrier from inside to outside.

3. voice coil line according to claim 1, is characterized in that, described voice coil line is followed successively by described core, described insulating barrier and described graphene layer from inside to outside.

4. the voice coil line according to Claims 2 or 3, is characterized in that, the outermost of described voice coil line is also surrounded with self-adhesive layer.

5. voice coil line according to claim 4, is characterized in that, described graphene layer is coated in the outer surface of described core or described insulating barrier by coating process.

6. voice coil loudspeaker voice coil, described voice coil loudspeaker voice coil is formed by voice coil line coiling, it is characterized in that, described voice coil line is the voice coil line described in the arbitrary claim of claim 1 to 5.

7. loud speaker, involving vibrations system and magnetic circuit system, described vibrational system comprises the vibrating diaphragm and voice coil loudspeaker voice coil that combine, it is characterized in that, described voice coil loudspeaker voice coil is voice coil loudspeaker voice coil according to claim 6.