CN212211384U

CN212211384U - Sound amplification device of sound equipment

Info

Publication number: CN212211384U
Application number: CN202021541712.1U
Authority: CN
Inventors: 沈月峰
Original assignee: Zhejiang Sanmu Intelligent Technology Co ltd
Current assignee: Zhejiang Sanmu Intelligent Technology Co ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2020-12-22
Anticipated expiration: 2030-07-29

Abstract

The utility model discloses a sound amplifying device, which comprises a sound amplifying column, a sound amplifying barrel and a magnetic conductive seat, wherein the sound amplifying column comprises a conical barrel, the conical barrel is provided with a spherical shell, the conical barrel and the spherical shell are both of thin-wall structures, and the spherical shell forms a dense circumferential array on the outer surface of the conical barrel; the sound amplifying tube comprises a horn tube, a front sinking platform, a transition neck and a rear sinking platform, and the magnetic conductive seat comprises an inner ring, an outer ring and a bottom ring; the cone-shaped cylinder is inserted into the front sinking platform, and the magnetic conduction seat is inserted into the rear sinking platform. The inner ring of the magnetic conduction seat is provided with a voice coil, and a gap between the inner ring and the outer ring is sequentially provided with a magnet, a magnetic conduction block, a second liner, a vibrating diaphragm and a first liner; the center circle of the bottom ring of the magnetic conduction seat is provided with a sound insulation base. The utility model discloses the surface area of column unit volume increases, and the holistic sympathetic response effect of stereo set and public address ability improve to some extent.

Description

Sound amplification device of sound equipment

Technical Field

The utility model relates to a stereo set field especially relates to a public address set of stereo set.

Background

In the structure of the existing sound equipment, the surface of the sound amplifying column is a single spherical surface or a single cylindrical surface, the surface area of the sound amplifying column in unit volume is not very large, the surface area of a resonance cavity in the sound amplifying column is limited, and the resonance effect and the sound amplifying capacity of the whole sound equipment are to be improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of current public address set, provide a can improve the stereo set public address set of sympathetic response effect.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a sound amplification device of a sound box comprises a sound amplification column, a sound amplification barrel and a magnetic conduction seat, wherein the sound amplification column comprises a conical barrel, the conical barrel is provided with a spherical shell, the conical barrel and the spherical shell are both of thin-wall structures, and the spherical shell forms a dense circumferential array on the outer surface of the conical barrel; the sound amplifying tube comprises a horn tube, a front sinking platform, a transition neck and a rear sinking platform, wherein a narrow opening of the horn tube is in smooth transition connection with the front sinking platform, a bottom plate of the front sinking platform is connected with one end of the transition neck, and the other end of the transition neck is connected with a base of the rear sinking platform; the magnetic conduction seat comprises an inner ring, an outer ring and a bottom ring, wherein the inner ring and the outer ring are concentrically arranged and are respectively arranged on the edges of the inner ring and the outer ring of the bottom ring; the opening of the conical cylinder is inserted into the front sinking platform, the bottom ring of the magnetic conductive seat is arranged upwards, and the outer ring of the magnetic conductive seat is attached to the inner wall of the rear sinking platform.

The inner ring of the magnetic conduction seat is provided with a voice coil, and a gap between the inner ring and the outer ring is sequentially provided with a magnet, a magnetic conduction block, a second liner, a vibrating diaphragm and a first liner; the center circle of the bottom ring of the magnetic conduction seat is provided with a sound insulation base.

The utility model has the advantages that: the spherical shell forms a dense circumferential array on the outer surface of the conical cylinder, so that the surface area of the unit volume of the sound column is enlarged, and the integral resonance effect and the sound amplification capacity of the sound box are improved.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is an enlarged view of FIG. 2 at B;

fig. 4 is an exploded view of the present invention;

FIG. 5 is a cross-sectional view taken at C-C of FIG. 4;

fig. 6 is a schematic view of the sound amplification column of the present invention;

fig. 7 is a schematic view of the magnetic conductive seat of the present invention;

in the figure: the loudspeaker comprises a sound amplifying column 1, a conical barrel 11, a spherical shell 12, a sound amplifying barrel 2, a horn barrel 21, a front sinking platform 22, a transition neck 23, a rear sinking platform 24, a first liner 3, a vibrating diaphragm 4, a second liner 5, a magnetic conduction block 6, a magnet 7, a voice coil 8, a magnetic conduction seat 9, an inner ring 91, an outer ring 92, a bottom ring 93 and a sound insulation base 10.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments:

as shown in fig. 1-7, a sound amplifying device includes a sound column 1, a sound tube 2 and a magnetic conductive seat 9, the sound column 1 includes a conical tube 11, the taper of the conical tube 11 is preferably 4 °, the tip of the conical tube 11 is a spherical surface, a spherical shell 12 is disposed on the side surface of the conical tube 11, the conical tube 11 and the spherical shell 12 are both thin-walled structures, and the spherical shell 12 forms a dense circumferential array on the outer surface of the conical tube 11.

The sound amplifying tube 2 comprises a horn tube 21, a front sinking platform 22, a transition neck 23 and a rear sinking platform 24, the narrow opening of the horn tube 21 is in smooth transition connection with the front sinking platform 22, the bottom plate of the front sinking platform 22 is connected with one end of the transition neck 23, and the other end of the transition neck 23 is connected with the base of the rear sinking platform 24.

The magnetic conductive seat 9 comprises an inner ring 91, an outer ring 92 and a bottom ring 93, wherein the inner ring 91 and the outer ring 92 are concentrically arranged and are respectively arranged on the edges of an inner ring and an outer ring of the bottom ring 93; the opening of the cone-shaped cylinder 11 is inserted into the front sinking platform 22, the bottom ring 93 of the magnetic conducting seat 9 is arranged upwards, and the outer ring 92 of the magnetic conducting seat 9 is attached to the inner wall of the rear sinking platform 24.

The voice coil 8 is arranged on the inner ring 91 of the magnetic conduction seat 9, and the magnet 7, the magnetic conduction block 6, the second liner 5, the vibrating diaphragm 4 and the first liner 3 are sequentially arranged in the gap between the inner ring 91 and the outer ring 92; the sound insulation base 10 is arranged on the center circle of the bottom ring 93 of the magnetic conduction seat 9.

4 vibration phonation of vibrating diaphragm during the use, the sound wave is reverberated in the sealed sympathetic response intracavity that the preceding heavy platform 22 of column loudspeaker 1 and a loudspeaker 2 formed, because of the utility model discloses a spherical shell 12 forms intensive circumference array at a toper section of thick bamboo 11 outward appearance, and the surface area of 1 unit volumes of loudspeaker increases, and the holistic sympathetic response effect of stereo set and public address ability improve to some extent.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a public address set of stereo set, includes public address post (1), public address barrel (2) and magnetic conduction seat (9), its characterized in that: the sound amplifying column (1) comprises a conical barrel (11), a spherical shell (12) is arranged on the conical barrel (11), the conical barrel (11) and the spherical shell (12) are both of thin-wall structures, and the spherical shell (12) forms a dense circumferential array on the outer surface of the conical barrel (11); the sound amplifying tube (2) comprises a horn tube (21), a front sinking platform (22), a transition neck (23) and a rear sinking platform (24), a narrow opening of the horn tube (21) is in smooth transition connection with the front sinking platform (22), a bottom plate of the front sinking platform (22) is connected with one end of the transition neck (23), and the other end of the transition neck (23) is connected with a base of the rear sinking platform (24); the magnetic conduction seat (9) comprises an inner ring (91), an outer ring (92) and a bottom ring (93), wherein the inner ring (91) and the outer ring (92) are concentrically arranged and are respectively arranged on the edges of an inner ring and an outer ring of the bottom ring (93); the opening of a conical cylinder (11) is inserted into a front sinking platform (22), a bottom ring (93) of the magnetic conducting seat (9) is arranged upwards, and an outer ring (92) of the magnetic conducting seat (9) is attached to the inner wall of a rear sinking platform (24).

2. An acoustic amplification apparatus as claimed in claim 1, wherein: a voice coil (8) is arranged on an inner ring (91) of the magnetic conduction seat (9), and a magnet (7), a magnetic conduction block (6), a second liner (5), a vibrating diaphragm (4) and a first liner (3) are sequentially arranged in a gap between the inner ring (91) and an outer ring (92); and a sound insulation base (10) is arranged on the center circle of the bottom ring (93) of the magnetic conduction seat (9).