CN218783909U

CN218783909U - Double-magnet loudspeaker

Info

Publication number: CN218783909U
Application number: CN202223063653.3U
Authority: CN
Inventors: 郭忠仁; 张吉
Original assignee: Xinfeng Gufeng Electronic Co ltd
Current assignee: Xinfeng Gufeng Electronic Co ltd
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-03-31
Anticipated expiration: 2032-11-18

Abstract

The utility model relates to a speaker technical field especially relates to a two magnet loudspeaker, including voice coil loudspeaker voice coil and shell, the shell internal fixation has ring shape external magnet, be fixed with the internal magnet on the inside shell of external magnet, be provided with the clearance between internal magnet and the external magnet, the voice coil loudspeaker voice coil is the torus structure, the voice coil loudspeaker voice coil sets up in the aforesaid clearance, the inside magnet upper end of voice coil loudspeaker voice coil is fixed with interior china department, the voice coil loudspeaker voice coil passes through the diaphragm setting in the shell, still be fixed with the protecting cover on the shell of diaphragm top. The outer magnet is fixed on the outer shell of the voice coil, magnetic force lines at the position of the voice coil become dense after the outer magnet is added, so that a magnetic field at the position of the voice coil is increased, the magnetism of the position of the voice coil is enhanced, the voice coil can drive the diaphragm to vibrate more easily after being electrified, the sensitivity of the voice coil is improved, the product performance is improved, and the noise reduction depth is increased.

Description

Double-magnet loudspeaker

[ technical field ] A method for producing a semiconductor device

The utility model relates to a speaker technical field especially relates to a two magnet loudspeaker.

[ background of the invention ]

The loudspeaker is a transducer for converting electric signal into sound signal, and its performance has great influence on sound quality. The loudspeaker is the weakest component in the audio equipment, and is the most important component for the audio effect. Loudspeakers are of a wide variety and vary widely in price. The audio frequency electric energy makes the paper cone or the diaphragm vibrate and generate resonance (resonance) with the surrounding air through electromagnetic, piezoelectric or electrostatic effect to make sound.

Along with the improvement of living standard, people pay more attention to the enjoyment in terms of material and spirit, more and more music feverish friends live with the music, particularly after 80, 90 and 00 of the modern times, the daily life can not leave the music, and the people pursue the music, such as being drunk; music is also relied upon as their spirits.

However, most of the existing horns are of a single magnet structure, such as the following patent application numbers: CN202023110132.X discloses an increase speaker of low frequency channel, including support and voice coil loudspeaker voice coil, the support internal fixation has U iron, inside from up being fixed with magnet and china in proper order down of U iron, this kind of single magnet loudspeaker are lower at the magnetic field intensity of voice coil loudspeaker voice coil position, lead to at the bottom of the voice coil loudspeaker voice coil sensitivity, produce the noise during high frequency easily.

The utility model discloses it is not enough to solve prior art and research and propose.

[ Utility model ] A method for manufacturing a semiconductor device

The utility model aims at overcoming the shortcoming of above-mentioned prior art, provide one kind can two magnet loudspeaker.

The utility model discloses can realize through following technical scheme:

the utility model discloses a two magnet loudspeaker, including voice coil loudspeaker voice coil and shell, the shell internal fixation has ring shape outer magnet, be fixed with interior magnet on the inside shell of outer magnet, be provided with the clearance between interior magnet and the outer magnet, the voice coil loudspeaker voice coil is the torus structure, the voice coil loudspeaker voice coil sets up in the aforesaid clearance, the inside magnet upper end of voice coil loudspeaker voice coil is fixed with interior china department, the voice coil loudspeaker voice coil passes through the diaphragm setting in the shell, still be fixed with the protecting cover on the shell of diaphragm top. When current passes through the voice coil after power amplification, the voice coil performs cutting magnetic field motion in the permanent magnetic field, and the voice coil vibrates up and down, so that the diaphragm which is connected with the voice coil in an adhesive mode is driven to vibrate, air is pushed to vibrate, sound is generated, and sound waves are transmitted (music which can be heard by people); the principle of energy conversion is as follows: electric energy, magnetic energy and acoustic energy; the outer magnet is fixed on the outer shell of the voice coil, magnetic force lines of the voice coil position become dense after the outer magnet is added, and therefore the magnetic field of the voice coil position is increased, the magnetism of the voice coil position is enhanced, the voice coil is more easily driven to vibrate through a diaphragm after being electrified, the sensitivity of the voice coil is improved, the product performance is improved, and the noise reduction depth is increased.

Preferably, an outer washer is further fixed to the outer magnet outside the voice coil.

Preferably, the shell is further provided with a sound hole penetrating through the shell, and the shell at the position of the sound hole is further covered with tuning cloth. The sound holes are provided with the sound-tuning cloth, the waterproof and dustproof functions of the loudspeaker are improved, air flow reaching the position of the diaphragm is adjusted through the sound-tuning cloth, sound sharp waves are controlled, and sound frequency is improved.

Compared with the prior art, the utility model has the advantages that:

1. the outer magnet is fixed on the outer shell of the voice coil, magnetic force lines at the position of the voice coil become dense after the outer magnet is added, so that a magnetic field at the position of the voice coil is increased, the magnetism of the position of the voice coil is enhanced, the voice coil can drive the diaphragm to vibrate more easily after being electrified, the sensitivity of the voice coil is improved, the product performance is improved, and the noise reduction depth is increased.

2. The shell and the T iron are integrally combined, and one assembling step is reduced, so that the assembly is simpler and more convenient, and the structure is more stable.

[ description of the drawings ]

The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:

FIG. 1 is an exploded view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

in the figure: 1. a protective cover; 2. a membrane; 3. a voice coil; 4. a washer; 5. an external magnet; 6. a washer; 7. an inner magnet; 8. a housing; 9. a sound adjusting cloth;

[ detailed description ] A

The following detailed description of embodiments of the present invention is made with reference to the accompanying drawings:

example 1:

as shown in fig. 1 to 2, this embodiment discloses a double-magnet loudspeaker, including voice coil 3 and shell 8, 8 internal fixation of shell has ring shape outer magnet 5, be fixed with inner magnet 7 on the shell 8 of 5 inside outer magnets, be provided with the clearance between inner magnet 7 and the outer magnet 5, voice coil 3 is the torus structure, voice coil 3 sets up in the aforesaid clearance, the inside magnet upper end of voice coil 3 is fixed with interior china department 6, voice coil 3 passes through diaphragm 2 and sets up in shell 8, still be fixed with protecting cover 1 on the shell 8 of diaphragm 2 top. When current passes through the voice coil 3 after power amplification, the voice coil 3 performs cutting magnetic field motion in the permanent magnetic field, and the voice coil 3 vibrates up and down, so that the diaphragm 2 which is connected with the voice coil 3 in an adhering mode is driven to vibrate to push air to vibrate, sound is generated, and sound waves (music which can be heard by people) are transmitted; the principle of energy conversion is as follows: electric energy, magnetic energy and acoustic energy; fixed external magnet 5 on the outside shell 8 of voice coil loudspeaker voice coil 3, the magnetic line of force that increases 3 positions of voice coil loudspeaker voice coil behind the external magnet 5 becomes intensive to increase the magnetic field in 3 positions of voice coil loudspeaker voice coil, 3 position magnetism reinforcing of voice coil loudspeaker voice coil, 3 more easy drive diaphragms 2 vibrations after circular telegram of voice coil loudspeaker voice coil, improve 3 sensitivities of voice coil loudspeaker voice coil, can effectively promote product property ability and fall the degree of depth of making an uproar.

Wherein, an outer washer 4 is fixed on an outer magnet 5 outside the voice coil 3.

Example 2:

this embodiment discloses a two magnet loudspeaker, based on embodiment 1 structure and principle, still be provided with the sound hole that runs through shell 8 on the shell 8 of this embodiment, still cover on the shell 8 of sound hole position and have tuning cloth 9. The sound holes are provided with the tuning cloths 9, the waterproof and dustproof functions of the loudspeaker are improved, air flow reaching the position of the diaphragm 2 is adjusted through the tuning cloths 9, sound sharp waves are controlled, and sound frequency is improved.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many changes, modifications, substitutions and variations can be made to the embodiments without departing from the technical principles of the present invention, and these changes, modifications, substitutions and variations should also be considered as the protection scope of the present invention.

Claims

1. The utility model provides a two magnet loudspeaker, includes voice coil loudspeaker voice coil and shell, its characterized in that: the voice coil is of a ring structure, the voice coil is arranged in the gap, an inner washer is fixed at the upper end of the magnet inside the voice coil, the voice coil is arranged in the shell through a diaphragm, and a protective cover is further fixed on the shell above the diaphragm.

2. The dual-magnet horn of claim 1, wherein: and an outer washer is fixed on the outer magnet outside the voice coil.

3. The dual-magnet horn of claim 1, wherein: the shell is further provided with a sound hole penetrating through the shell, and the shell at the position of the sound hole is further covered with sound adjusting cloth.