CN220858398U

CN220858398U - High decibel loudspeaker

Info

Publication number: CN220858398U
Application number: CN202322641049.2U
Authority: CN
Inventors: 万领; 吕仕涌; 陈顺挺; 郑祖孔
Original assignee: Xiamen Tuness Electronic Co ltd
Current assignee: Xiamen Tuness Electronic Co ltd
Priority date: 2023-09-27
Filing date: 2023-09-27
Publication date: 2024-04-26
Anticipated expiration: 2033-09-27

Abstract

The utility model provides a high-decibel loudspeaker, which comprises a bottom shell and a cover plate, wherein the bottom shell is a square shell, a containing cavity is arranged in the square shell, an opening is formed in the top of the square shell, and the top end of the bottom shell is provided with the cover plate matched with the square shell; the annular magnet comprises two opening magnets and square magnets which are similar in shape in the same plane, and the annular magnet is inlaid in the middle of the base frame; the voice coil is positioned in the magnetic gap of the annular magnet, namely the mouth-shaped magnet is integrated, the voice coil is completely wrapped, the voice coil is different from a conventional split magnetic circuit, the annular magnetic circuit improves the utilization rate of the magnet, the B value is improved, meanwhile, the heat dissipation capacity of the loudspeaker is improved, and a better choice is provided for the light and thin design of the loudspeaker under the condition of unchanged performance, wherein the B value is the decibel or the intensity of sound generated by the loudspeaker.

Description

High decibel loudspeaker

Technical Field

The utility model relates to a high-decibel loudspeaker, and belongs to the field of loudspeakers.

Background

The loudspeaker is a transducer for converting electric signals into acoustic signals, and the performance of the loudspeaker has great influence on sound quality. The speaker is the weakest element in the audio equipment, and it is the most important element for the audio effect; the audio electric energy makes its cone or diaphragm vibrate and resonate (resonate) with surrounding air to make sound by electromagnetic, piezoelectric or electrostatic effect.

In a conventional loudspeaker, a voice coil wire is wrapped by a magnet, and the voice coil is placed in the magnetic field by a magnetic field generated by the magnet. When the changed current is introduced into the sound box, the magnet becomes an electromagnet, the current direction is changed continuously, the electromagnet also continuously moves back and forth due to the fact that the electrified conducting wire is stressed to move in the magnetic field, and the vibrating diaphragm is driven to vibrate back and forth, so that sound is generated.

At present, the traditional loudspeaker is provided with magnets inside and outside a voice coil wire, the magnets outside the voice coil wire are usually split magnets, gaps exist between two adjacent magnets, the larger the gaps are, the more magnetic flux of a magnetic field is affected, the B value of the loudspeaker is affected, and magnetic leakage is easy.

Accordingly, the present utility model provides a speaker for lifting decibels using a toroidal magnetic circuit.

Disclosure of utility model

In view of the above, the present utility model is directed to a speaker for improving decibels using a toroidal magnetic circuit.

The utility model is realized in the following way:

the high-decibel loudspeaker comprises a bottom shell and a cover plate, wherein the bottom shell is a square shell, a containing cavity is arranged in the square shell, an opening is formed in the top of the square shell, and the cover plate matched with the square shell is arranged at the top end of the bottom shell;

The annular magnet comprises two opening magnets and square magnets which are similar in shape in the same plane, and the annular magnet is inlaid in the middle of the base frame;

The voice coil is embedded in the magnetic gaps of the two mouth magnets and the square magnet, and is arranged above the voice coil;

And the vibrating diaphragm is tightly attached to the voice coil, so that the vibrating diaphragm can vibrate along with the voice coil after being electrified to generate sound under the action of the magnetic field of the annular magnet.

As a further improvement, the voice coil comprises an FPC voice coil wire and a voice coil skeleton, the voice coil skeleton comprises two square frames with similar shapes, the two square frames are respectively embedded in the two mouth-shaped magnets and the magnetic gaps of the mouth-shaped magnets and the square magnets, the lower end face of the FPC voice coil wire is tightly attached to the voice coil skeleton, and the upper end face of the FPC voice coil wire is glued with the FPC voice coil wire.

As a further improvement, a fixing strip is embedded in the middle position of the length between the two square frames.

As a further improvement, a guiding pole piece is arranged in the middle of the upper end face of the annular magnet.

As a further improvement, the shape of the magnetic guide pole piece is equivalent to that of the mouth magnet or the square magnet.

As a further improvement, the lower end face of the ring magnet is provided with a magnetic shield.

As a further improvement, the magnetic cover is a square pole piece with the shape equivalent to the outline of the annular magnet.

As a further improvement, the cover plate is provided with a plurality of mutually parallel sound outlet holes.

As a further improvement, the horizontal side surface of the bottom shell is provided with a wire outlet hole for connecting the voice coil with external equipment.

The beneficial effects of the utility model are as follows:

① The voice coil is positioned in the magnetic gap of the annular magnet, namely the mouth-shaped magnet is integrated, the voice coil is completely wrapped, the voice coil is different from a conventional split magnetic circuit, the annular magnetic circuit improves the utilization rate of the magnet, the B value is improved, meanwhile, the heat dissipation capacity of the loudspeaker is improved, and a better choice is provided for the light and thin design of the loudspeaker under the condition of unchanged performance, wherein the B value is the decibel or the intensity of sound generated by the loudspeaker.

② According to the utility model, the FPC voice coil wire is supported by the voice coil framework so as to keep the voice coil wire horizontal, so that the voice coil wire is fully contacted with the vibrating diaphragm, and the FPC voice coil wire and the vibrating diaphragm are in resonance under the action of the annular magnet.

③ The fixing strip is embedded in the middle of the length between the two square frames, and when the voice coil framework is embedded in the annular magnet, the voice coil framework and the annular magnet cannot be staggered and fall off, so that the voice coil framework is convenient to install and use.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a speaker with high db according to an embodiment of the present utility model.

Fig. 2 is a schematic exploded view of a speaker with high db according to an embodiment of the present utility model.

Fig. 3 is a schematic cross-sectional view illustrating an internal structure of a speaker with high db according to an embodiment of the present utility model.

Fig. 4 is a schematic diagram of a voice coil framework of a speaker with high db according to an embodiment of the present utility model.

Fig. 5 is a partial schematic diagram of fig. 2 in accordance with the present utility model.

Fig. 6 is a partial schematic diagram of fig. 2 according to the present utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In the description of the present utility model, 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 or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1 to 6, the present embodiment provides a high db speaker, which includes a bottom case 10 and a cover 20, wherein the bottom case 10 is a square case having a receiving cavity 30 therein and an opening at the top, and the cover 20 is fitted on the top of the bottom case 10;

The annular magnet 50 comprises two similarly-shaped mouth magnets 501 and square magnets 502 in the same plane, and the annular magnet 50 is embedded in the middle of the base frame 40;

A voice coil 60 fitted in magnetic gaps between the two magnets 501, 501 and 502, and above the voice coil 60;

The diaphragm 70 is closely attached to the voice coil 60, so that the diaphragm 70 will vibrate with the voice coil 60 after being energized to generate sound under the magnetic field of the ring magnet 50.

The voice coil 60 is positioned in the magnetic gap of the annular magnet 50, namely the mouth magnet 501 is integrated, the voice coil 60 is completely wrapped, the voice coil is different from a conventional split magnetic circuit, the annular magnetic circuit improves the utilization rate of the magnet, the B value is improved, the heat dissipation capacity of the loudspeaker is improved, and a better choice is provided for the light and thin design of the loudspeaker under the condition of unchanged performance, wherein the B value is the decibel or the intensity of sound generated by the loudspeaker.

As a possible specific embodiment of the present utility model, preferably, the voice coil 60 includes an FPC voice coil wire 601 and a voice coil frame 602, the voice coil frame 602 includes two square frames with similar shapes, the two square frames are respectively embedded in magnetic gaps of the two magnets 501 and the magnets 501 and 502, the lower end surface of the FPC voice coil wire 601 is tightly attached to the voice coil frame 602, and the upper end surface of the FPC voice coil wire 601 is glued with the FPC voice coil wire 601;

The FPC voice coil wire 601 is supported by the voice coil bobbin 602 so as to be kept horizontal, sufficient contact with the diaphragm 70 is achieved, and the FPC voice coil wire 601 and the diaphragm 70 resonate cooperatively under the action of the ring magnet 50.

Further, a fixing strip 603 is embedded in the middle position of the length between the two square frames, and when the voice coil framework 602 is embedded in the annular magnet 50, the voice coil framework and the annular magnet 50 are not staggered and fall off, so that the voice coil framework is convenient to install and use.

In one embodiment, the length of the fixing strip 603 is less than 1/2 of the width L of the magnetic gap, and the fixing strip may be removably assembled and disassembled without being connected in series.

As a possible embodiment of the present utility model, it is preferable that the ring magnet 50 has a magnetic pole piece 80 in the middle of the upper end surface, so as to facilitate magnetic conduction.

Further, the shape of the magnetic pole piece 80 is equal to the shape of the magnet 501 and the square magnet 502, so that sufficient magnetic conduction is ensured, and no magnetic leakage occurs.

As a possible embodiment of the present utility model, it is preferable that the lower end surface of the ring magnet 50 is provided with a magnetic shield 90, and the bottom surface of the magnetic shield 90 contacts with the bottom shell 10, so that the magnetic shield 90 isolates the ring magnet 50, prevents the bottom shell 10 from being magnetized by the ring magnet 50, and reduces the magnetism of the ring magnet 50, and limits the magnetic field to a position near the voice coil.

Further, the magnetic cover 90 is a square pole piece with a shape equivalent to the outer contour of the ring magnet 50, and completely isolates the ring magnet 50 and also completely covers the voice coil position.

As a possible embodiment of the present utility model, it is preferable that the cover 20 is provided with a plurality of mutually parallel sound emitting holes 201.

As a possible embodiment of the present utility model, it is preferable that the horizontal side of the bottom case 10 is provided with a wire hole 101 for connecting the voice coil 60 to an external device.

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

Claims

1. The high-decibel loudspeaker is characterized by comprising a bottom shell (10) and a cover plate (20), wherein the bottom shell (10) is a square shell with an accommodating cavity (30) arranged inside and an opening at the top, and the top end of the bottom shell (10) is provided with the cover plate (20) matched with the accommodating cavity;

the annular magnet (50) comprises two opening-shaped magnets (501) and square magnets (502) which are similar in shape in the same plane, and the annular magnet (50) is inlaid in the middle of the base frame (40);

A voice coil (60) embedded in magnetic gaps of the two mouth magnets (501) and the square magnets (502), wherein the voice coil (60) is arranged above;

And the vibrating diaphragm (70) is closely attached to the voice coil (60), so that the vibrating diaphragm (70) can vibrate along with the voice coil (60) after being electrified to generate sound under the action of the magnetic field of the annular magnet (50).

2. The high-decibel loudspeaker of claim 1, wherein the voice coil (60) comprises an FPC voice coil wire (601) and a voice coil bobbin (602), the voice coil bobbin (602) comprises two square frames with similar shapes, the two square frames are respectively embedded in magnetic gaps of the two mouth-shaped magnets (501) and the square magnets (502), the lower end face of the FPC voice coil wire (601) is tightly attached to the voice coil bobbin (602), and the upper end face of the FPC voice coil wire (601) is glued with the FPC voice coil wire (601).

3. A high decibel loudspeaker according to claim 2, characterized in that a fixing strip (603) is embedded in the middle of the length between the two square frames.

4. The high decibel loudspeaker of claim 1, wherein the ring magnet (50) has a pole piece (80) intermediate its upper end face.

5. The high decibel speaker of claim 4, wherein the shape of the magnetic pole piece (80) is identical to the shape of the mouth magnet (501), square magnet (502).

6. The high decibel loudspeaker of claim 4, wherein the lower end surface of the ring magnet (50) is provided with a magnetic shield (90).

7. The high decibel loudspeaker of claim 6, wherein the magnetic shield (90) is a square pole piece shaped to match the outer contour of the ring magnet (50).

8. The high decibel loudspeaker of claim 1, wherein the cover plate (20) is provided with a plurality of mutually parallel sound outlet holes (201).

9. The high-decibel loudspeaker of claim 1, wherein the horizontal side of the bottom case (10) is provided with a wire outlet (101) for connecting the voice coil (60) to an external device.