CN204578773U - Voice coil loudspeaker voice coil and the loud speaker with this voice coil loudspeaker voice coil - Google Patents

Abstract

The utility model relates to a voice coil and a loudspeaker with the voice coil. The voice coil includes a voice coil frame and an enameled wire winding. The voice coil frame is provided with a mesh structure with a plurality of mesh holes. The enameled wire winding is wound on the mesh structure to form a voice coil with a mesh structure. The loudspeaker includes a magnetic circuit system and a voice coil with a mesh structure. The magnetic circuit system includes a T-shaped iron, a ring-shaped magnet and an upper splint. A ring-shaped magnetic circuit gap is formed between the pole core of the T-shaped iron and the middle through hole of the upper splint. ; The voice coil with mesh structure is set in the gap of the annular magnetic circuit. The utility model provides a voice coil and a loudspeaker with the voice coil, which can not only significantly improve the heat dissipation capacity of the voice coil, but also effectively improve the power bearing capacity of the voice coil. The improvement of the power bearing capacity of the voice coil can not only improve the working efficiency of the loudspeaker, but also improve the reliability and stability of the long-term working of the loudspeaker.

Description

Voice coil and loudspeaker with the voice coil

technical field

The utility model relates to a loudspeaker, in particular to a voice coil and a loudspeaker with the voice coil.

Background technique

Loudspeakers are electro-acoustic transducers that convert electrical signals into acoustic signals and radiate them into the air. Fig. 1 is a structural schematic diagram of a loudspeaker in the prior art. As shown in Figure 1, the main structure of the prior art loudspeaker includes a magnetic circuit system and a voice coil, the magnetic circuit system includes a T-shaped iron 1, a ring magnet 2 and an upper splint 3, and the T-shaped iron 1 includes a bottom plate and is arranged in the middle of the bottom plate The pole stem of the T-shaped iron 1 has a ring-shaped magnet 2 with a middle through hole and an upper splint 3 arranged on the bottom plate of the T-shaped iron 1 in turn, and the pole stem of the T-shaped iron 1 is penetrated in the middle through-hole, so that the T-shaped iron 1 An annular magnetic circuit gap is formed between the pole core post and the middle through hole of the upper splint 3 . FIG. 2 is a schematic structural diagram of a voice coil in the prior art, and FIG. 3 is a cross-sectional view along A-A in FIG. 2 . As shown in FIG. 2 and FIG. 3 , the main structure of the voice coil in the prior art includes a voice coil frame 41 and an enameled wire winding 42 , and the enameled wire winding 42 is wound on the voice coil frame 42 . As shown in FIG. 1 , the voice coil is arranged in the gap of the annular magnetic circuit, and is connected with the paper cone 5 of the speaker through the voice coil skeleton 42 . The working principle of the speaker is: when the winding of the voice coil passes the alternating current of the audio signal in the magnetic field of the speaker's magnetic circuit, it is subjected to the force of the magnetic field, and the force is transmitted to the paper plate through the voice coil skeleton, so that the paper plate moves, Push the air, make the sound.

The traditional voice coil bobbin is formed by rolling thin paper or other materials into a cylinder. FIG. 4 is a schematic diagram of the heat dissipation path of the voice coil in the prior art. As shown in FIG. 4 , when the current passes through the voice coil, a large amount of heat will be generated. The heat generated by the voice coil in the magnetic circuit is mainly dissipated by air convection and radiation in the gap of the magnetic circuit. Air convection makes the heat of the voice coil dissipate to the surrounding air; radiation is to make the voice coil radiate the heat generated by itself to the adjacent upper splint 3 and T-shaped iron 1 .

To sum up, the voice coil of the speaker will generate a lot of heat when it is working, and the heat must be dissipated in time. The paper skeleton of the traditional voice coil is a poor conductor of heat, which hinders the heat from the voice coil from dissipating to the T iron.

Utility model content

The purpose of the utility model is to provide a voice coil and a loudspeaker with the voice coil, which can effectively solve the above-mentioned technical defects caused by the paper skeleton of the voice coil.

In order to achieve the above purpose, the utility model provides a speaker voice coil in the first aspect, including a voice coil frame and an enameled wire winding, and the enameled wire winding is closely wound on the voice coil frame with multiple turns, and it is characterized in that the The voice coil skeleton is provided with a mesh structure, and the mesh structure has a plurality of mesh holes; the enameled wire winding is wound on the mesh structure to form a speaker voice coil with a mesh structure; the speaker voice coil is The heat generated during work is dissipated through the mesh structure.

Preferably, the voice coil bobbin and the enameled wire winding are bonded and fixed by adhesive.

In order to achieve the above purpose, the utility model provides a speaker in the second aspect, including a magnetic circuit system, and the speaker voice coil as described in the first aspect, the magnetic circuit system includes a T-shaped iron, a ring magnet and an upper The splint, the T-shaped iron includes a bottom plate and a pole core column arranged in the middle of the bottom plate, the ring magnet and the middle of the upper splint are provided with through holes, and are sequentially sleeved on the bottom plate of the T-shaped iron, and the T-shaped iron The pole core post is set in the middle through hole, so that the annular magnetic circuit gap is formed between the pole core post of the T-shaped iron and the middle through hole of the upper splint; the speaker voice coil is arranged in the annular magnetic circuit gap, It is sleeved on the pole core post in the middle of the T-shaped iron bottom plate.

Preferably, the voice coil bobbin and the enameled wire winding are bonded and fixed by adhesive.

The utility model provides a voice coil and a loudspeaker with the voice coil. The voice coil skeleton has a mesh structure with a plurality of mesh holes, which improves the heat dissipation capacity of the loudspeaker. In addition, the existence of the mesh in the voice coil bobbin is conducive to the accumulation of adhesive, which improves the bonding strength between the voice coil bobbin and the enameled wire winding. Therefore, the voice coil and the loudspeaker with the voice coil provided by the utility model can not only significantly improve the heat dissipation capacity of the voice coil, but also effectively improve the power bearing capacity of the voice coil. The improvement of the power bearing capacity of the voice coil can not only improve the working efficiency of the loudspeaker, but also improve the reliability and stability of the long-term working of the loudspeaker.

Description of drawings

Fig. 1 is the structural representation of prior art loudspeaker;

Fig. 2 is a structural schematic diagram of a voice coil in the prior art;

Fig. 3 is a sectional view along A-A in Fig. 2;

FIG. 4 is a schematic diagram of a heat dissipation path of a voice coil in the prior art;

Fig. 5 is the structural representation of the utility model loudspeaker voice coil;

FIG. 6 is a schematic diagram of the heat dissipation path of the voice coil of the loudspeaker of the present invention.

Explanation of reference signs:

1—T-shaped iron; 2—ring magnet; 3—upper splint;

4—voice coil; 5—paper plate; 41—voice coil skeleton;

42—Enameled wire winding.

Detailed ways

The technical solutions of the present utility model will be further described in detail through specific embodiments below.

In a specific embodiment, Fig. 5 is a schematic structural view of the voice coil of the speaker of the present invention. As shown in Fig. 5, the main structure of the voice coil of the speaker of the present invention includes a voice coil skeleton 41, an enameled wire winding 42, and the voice coil skeleton 41 is set There is a mesh structure, and the mesh structure has a plurality of mesh holes; the enameled wire winding 42 is wound on the voice coil skeleton 41 to form a voice coil with a mesh structure.

When current passes through the voice coil, a lot of heat is generated. The heat generated by the voice coil in the magnetic circuit is mainly dissipated by air convection and radiation in the gap of the magnetic circuit. The existence of the mesh structure in the voice coil frame makes the air convection and radiation better, and accelerates the heat dissipated in the form of air convection and radiation when the speaker is working.

In practical applications, multiple turns of the enameled wire winding 42 are tightly wound on the voice coil bobbin 41 and fixed with an adhesive. The existence of the mesh in the voice coil bobbin 41 improves the bond strength between the voice coil bobbin 41 and the enameled wire winding 42 through the accumulation of adhesive.

The utility model makes the voice coil skeleton of the loudspeaker voice coil into a mesh structure with a plurality of mesh holes, thereby improving the heat dissipation capacity of the loudspeaker voice coil. At the same time, the existence of the mesh in the voice coil bobbin improves the bonding strength between the voice coil bobbin and the enameled wire winding cable by utilizing the accumulation of adhesive. Therefore, the voice coil provided by the utility model can not only significantly improve the heat dissipation capacity of the voice coil, but also effectively improve the power bearing capacity of the voice coil. The improvement of the power bearing capacity of the voice coil can not only improve the working efficiency of the loudspeaker, but also improve the reliability and stability of the long-term working of the loudspeaker.

In another specific embodiment, FIG. 6 is a schematic diagram of the heat dissipation path of the voice coil of the loudspeaker of the present invention. As shown in Figure 6, the main structure of the loudspeaker of the present invention includes a magnetic circuit system and a speaker voice coil with a mesh structure. The magnetic circuit system includes a T-shaped iron 1, a ring magnet 2 and an upper splint 3, and the T-shaped iron 1 includes The bottom plate and the pole core post arranged in the middle of the bottom plate, the ring magnet 2 and the middle part of the upper splint 3 are provided with through holes, and are sequentially sleeved on the bottom plate of the T-shaped iron, and the pole core post of the T-shaped iron 1 is pierced through the middle part. In the hole, an annular magnetic circuit gap is formed between the pole core post of the T-shaped iron 1 and the middle through hole of the upper splint 3 .

The loudspeaker voice coil is set in the gap of the annular magnetic circuit, and is sleeved on the pole core column in the middle of the bottom plate of the T-shaped iron 1. Its main structure includes a voice coil skeleton 41 and an enameled wire winding 42. The voice coil skeleton 41 is provided with a mesh structure , the mesh structure has a plurality of mesh holes; the enameled wire winding 42 is wound on the voice coil bobbin 41 to form a voice coil with a mesh structure. In practical applications, multiple turns of the enameled wire winding 42 are tightly wound on the voice coil bobbin 41 and fixed with an adhesive. The existence of the mesh in the voice coil bobbin 41 improves the bond strength between the voice coil bobbin 41 and the enameled wire winding 42 through the accumulation of adhesive.

The working principle of the loudspeaker is: the voice coil is connected to the paper plate of the loudspeaker through the voice coil bobbin 41, when the enameled wire winding 42 of the voice coil passes the alternating current of the audio signal in the magnetic field of the magnetic circuit of the loudspeaker, it is subjected to the force of the magnetic field, The force is transmitted to the paper plate through the voice coil skeleton, which makes the paper plate move, pushes the air, and produces sound.

When current passes through the speaker voice coil, a lot of heat is generated. As shown in Figure 6, there are two main ways to dissipate the heat generated by the speaker voice coil in the magnetic circuit, one of which is the air convection indicated by the vertical arrow, that is, the heat of the voice coil is dissipated by the air convection in the gap of the magnetic circuit. into the surrounding air; the other is the radiation indicated by the horizontal arrow, that is, the voice coil radiates the heat generated by itself to the adjacent upper splint 3 and T-shaped iron 1 by radiation. The existence of the mesh structure with mesh in the voice coil bobbin 41 enables better air convection and radiation, and accelerates the heat dissipated in the form of air convection and radiation when the speaker is working.

The loudspeaker of the utility model improves the heat dissipation capacity of the voice coil by adopting the voice coil with a mesh structure. At the same time, the existence of the mesh in the voice coil bobbin makes use of the accumulation of adhesive to improve the bonding strength between the voice coil bobbin and the cable. Therefore, the loudspeaker provided by the utility model can not only significantly improve the heat dissipation capacity of the voice coil, but also effectively improve the power bearing capacity of the voice coil. The improvement of the power bearing capacity of the voice coil can not only improve the working efficiency of the loudspeaker, but also improve the reliability and stability of the long-term working of the loudspeaker.

The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present utility model in detail. Within the protection scope of the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims (4)

1. A loudspeaker voice coil, comprising a voice coil bobbin (41) and an enameled wire winding (42), and the enameled wire winding (42) is tightly wound on the voice coil bobbin (41) in multiple turns, it is characterized in that the The voice coil frame (41) is provided with a mesh structure, and the mesh structure has a plurality of mesh holes; the enameled wire winding (42) is wound on the mesh structure to form a speaker voice coil with a mesh structure; The heat generated by the voice coil of the loudspeaker is dissipated through the mesh structure. 2. The voice coil according to claim 1, characterized in that, the voice coil bobbin (41) and the enameled wire winding (42) are bonded and fixed by an adhesive. 3. A loudspeaker, characterized in that, comprises a magnetic circuit system, and the loudspeaker voice coil as claimed in claim 1, said magnetic circuit system comprising a T-shaped iron (1), a ring magnet (2) and an upper splint ( 3), the T-shaped iron (1) includes a bottom plate and a pole core post arranged in the middle of the bottom plate, the ring magnet (2) and the middle part of the upper splint (3) are provided with through holes, and are sequentially sleeved on the On the bottom plate of the T-shaped iron (1), the pole core post of the T-shaped iron (1) is penetrated in the middle through hole, so that the pole core post of the T-shaped iron (1) and the middle through hole of the upper splint (3) An annular magnetic circuit gap is formed between them; the loudspeaker voice coil is arranged in the annular magnetic circuit gap and sleeved on the pole core post in the middle of the T-shaped iron (1) bottom plate. 4. The loudspeaker according to claim 3, characterized in that, the voice coil bobbin (41) and the enameled wire winding (42) are bonded and fixed by an adhesive.