CN210120653U

CN210120653U - Small-size heavy bass audio amplifier

Info

Publication number: CN210120653U
Application number: CN201920698591.2U
Authority: CN
Inventors: 张昊
Original assignee: Suzhou Jing Li Electronics Co Ltd By Shares
Current assignee: Suzhou Jing Li Electronics Co Ltd By Shares
Priority date: 2019-05-15
Filing date: 2019-05-15
Publication date: 2020-02-28
Anticipated expiration: 2029-05-15

Abstract

The utility model discloses a small-size heavy bass audio amplifier, include: a sound box body; and the fixed sleeve is arranged on the fixed ear component on the periphery of the sound box body, wherein the fixed ear component comprises a left fixed ear and a right fixed ear which are oppositely arranged, and the left fixed ear and the right fixed ear are in an anti-symmetric structure with each other. According to the utility model discloses, it is in the miniaturization, still has good heat dissipation and the advantage of the installation of stabilizing for a long time, has avoided appearing overheated and the unstable problem of installation that overheated leads to after the work a period.

Description

Small-size heavy bass audio amplifier

Technical Field

The utility model relates to an audio amplifier field, in particular to small-size heavy bass audio amplifier.

Background

The loudspeaker box is a terminal of the whole sound system and is used for converting audio electric energy into corresponding sound energy and radiating the sound energy into a space. It is an extremely important component of an audio system and is responsible for the task of converting electrical signals into acoustic signals for direct listening by the human ear.

In view of the problems of heat dissipation and stable installation and fixation of the conventional sound box, especially a small-sized heavy-bass sound box, which generates heat seriously after working for a period of time, it is necessary to develop a small-sized heavy-bass sound box for solving the problems of heat dissipation and installation of the small-sized sound box.

SUMMERY OF THE UTILITY MODEL

To the weak point that exists among the prior art, the utility model aims at providing a small-size heavy bass audio amplifier, it is in the miniaturization, still has good heat dissipation and the advantage of the long-time firm installation, has avoided appearing overheated and the unstable problem of installation that overheated leads to after the work period.

In order to realize the above objects and other advantages in accordance with the present invention, there is provided a small subwoofer, comprising:

a sound box body; and

a fixed lug component fixedly sleeved on the periphery of the sound box body,

the fixed ear subassembly comprises a left fixed ear and a right fixed ear which are oppositely arranged, and the left fixed ear and the right fixed ear are in anti-symmetric structures relative to the sound box body.

Preferably, the sound box body includes:

a magnetic shield which is opened at the top thereof to form an opening;

the vibrating diaphragm, the voice coil and the permanent magnet are sequentially arranged in the antimagnetic cover from top to bottom; and

a protective cover which is covered on the vibrating diaphragm and seals the opening of the antimagnetic cover,

wherein, fixed ear subassembly is fixed to be located antimagnetic cover's periphery.

Preferably, two sides of the left fixing lug extend out of an upper left clamping ring and a lower left clamping ring along the periphery of the antimagnetic cover respectively.

Preferably, two sides of the right fixing lug extend out of a right upper clamping ring and a right lower clamping ring along the periphery of the antimagnetic cover respectively.

Preferably, the outer end of the upper left clamping ring is opposite to the outer end of the upper right clamping ring and is arranged at an interval to form a first expansion joint between the upper left clamping ring and the upper right clamping ring.

Preferably, the outer end of the left lower clamping ring is opposite to the outer end of the right lower clamping ring and is arranged at an interval to form a second expansion joint between the left lower clamping ring and the right lower clamping ring.

Preferably, a transverse symmetry axis X and a longitudinal symmetry axis Y on the plane of the opening are formed on the antimagnetic cover, the antimagnetic cover is in a symmetrical structure on the plane of the opening respectively about the transverse symmetry axis X and the longitudinal symmetry axis Y, and the first expansion joint and the second expansion joint are arranged in an antisymmetric manner about the transverse symmetry axis X or the longitudinal symmetry axis Y.

Preferably, an included angle α is formed between a connecting line of the first expansion joint and the second expansion joint and the transverse symmetry axis X, and the included angle α is 15-40 degrees.

Preferably, the outer end surface of the upper left snap ring is matched with the outer end surface of the upper right snap ring, the outer end surface of the upper right snap ring is perpendicular to the plane where the opening is located, an included angle β is formed between the outer end surface of the upper right snap ring and the longitudinal symmetry axis Y, and the included angle β is 16-32 degrees.

Preferably, the protection casing is the ball column structure of upwards hunch-up, assumes the diameter of antimagnetic cover is D, the height of audio amplifier body is H, the radius of protection casing is R, then has D: h is 2-3, and R is D.

Compared with the prior art, the utility model, its beneficial effect is: the heat dissipation structure has the advantages of excellent heat dissipation and long-time stable installation in the process of miniaturization, and the problem of unstable installation caused by overheating and overheating after a period of working is avoided.

Drawings

Fig. 1 is a front view of a compact subwoofer according to the present invention;

fig. 2 is a top view of a compact subwoofer according to the present invention.

Detailed Description

The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses a more detailed description of the present invention, which will enable those skilled in the art to make and use the present invention. In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, and the like are used based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These relative terms are for convenience of description and are not generally intended to require a particular orientation. Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.

Referring to fig. 1 and 2, the compact subwoofer includes:

a sound box body 1; and

a fixed lug component 2 fixedly sleeved on the periphery of the sound box body 1,

the fixed ear assembly 2 includes a left fixed ear 21 and a right fixed ear 22 which are oppositely disposed, and the left fixed ear 21 and the right fixed ear 22 are in an anti-symmetric structure with respect to the sound box body 1. In a preferred embodiment, the left fixing lug 21 and the right fixing lug 22 are both made of a heat-conductive metal material, and the thickness of the left fixing lug 21 and the right fixing lug 22 is 2mm to 4 mm. Thereby reduced the area of contact of fixed ear subassembly 2 with audio amplifier body 1, adopted heat conductivity metal material also to be favorable to audio amplifier body 1 to dispel the heat.

Referring to fig. 2, the cabinet body 1 includes:

a magnetic shield 11, the magnetic shield 11 being open at a top thereof to form an opening;

a diaphragm, a voice coil and a permanent magnet (as the prior art, not shown in the figure) which are arranged in the antimagnetic housing 11 from top to bottom in sequence; and

a protective cover 13 covering the diaphragm and closing the opening of the antimagnetic cover 11,

wherein, the fixed ear component 2 is fixedly sleeved on the periphery of the antimagnetic cover 11. In a preferred embodiment, a ring of pressing edges 12 is fixed to the outer periphery of the protective cover 13.

Further, two sides of the left fixing ear 21 extend along the periphery of the antimagnetic cover 11 to form a left upper clamping ring 211 and a left lower clamping ring 212 respectively.

Further, two sides of the right fixing ear 22 respectively extend out of the right upper clamping ring 221 and the right lower clamping ring 222 along the periphery of the antimagnetic cover 11.

Further, the outer end of the upper left clamping ring 211 is opposite to the outer end of the upper right clamping ring 221 and is arranged at intervals to form a first expansion joint 111 between the two.

Further, the outer end of the left lower clamping ring 212 is opposite to the outer end of the right lower clamping ring 222 and is arranged at an interval to form a second expansion joint 112 therebetween. According to the thermal expansion and cold contraction effect, in order to make the antimagnetic cover 11 and the left and

right fixing lugs

21 and 22 clamped more tightly, the expansion coefficients of the left and

right fixing lugs

21 and 22 are usually smaller than that of the antimagnetic cover 11, and the arrangement of the first expansion joint 111 and the second expansion joint 112 can prevent the left and

right fixing lugs

21 and 22 from being broken and damaged due to the excessive expansion force of the antimagnetic cover 11 after the antimagnetic cover 11 is heated and expanded, thereby improving the clamping stability of the left and

right fixing lugs

21 and 22 to the antimagnetic cover 11. In a preferred embodiment, assuming that the widths of the first and

second expansion joints

111 and 112 are both L, the size of L is 2mm to 5 mm.

Further, a transverse symmetry axis X and a longitudinal symmetry axis Y on the plane of the opening are formed on the antimagnetic cover 11, the antimagnetic cover 11 is in a symmetrical structure on the plane of the opening with respect to the transverse symmetry axis X and the longitudinal symmetry axis Y, respectively, and the first expansion joint 111 and the second expansion joint 112 are arranged in an anti-symmetrical manner with respect to the transverse symmetry axis X or the longitudinal symmetry axis Y. By adopting the structure, the resonance generated by the sound box body 1 with the left fixing lug 21 and the right fixing lug 22 during working can be reduced, so that the noise is eliminated, and the tone quality is improved.

Furthermore, an included angle α is formed between a connecting line between the first expansion joint 111 and the second expansion joint 112 and the transverse symmetry axis X, and the included angle α is 15 degrees to 40 degrees, in one embodiment, the included angle α is 15 degrees, in another embodiment, the included angle α is 40 degrees, and in a preferred embodiment, the included angle α is 28 degrees.

Further, the outer end face of the upper left snap-in ring 211 is matched with the outer end face of the upper right snap-in ring 221, the outer end face of the upper right snap-in ring 221 is perpendicular to the plane where the opening is located, an included angle β is formed between the outer end face of the upper right snap-in ring 221 and the longitudinal symmetry axis Y, the included angle β is 16 degrees to 32 degrees, in one embodiment, the included angle β is 16 degrees, in another embodiment, the included angle β is 32 degrees, and in a preferred embodiment, the included angle β is 25 degrees.

Further, the protection cover 13 is a spherical structure that arches upwards, and assuming that the diameter of the antimagnetic cover 11 is D, the height of the sound box body 1 is H, and the radius of the protection cover 13 is R, there is D: h is 2-3, and R is D. In a preferred embodiment, D: h ═ 2.23.

The number of apparatuses and the scale of the process described here are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.

While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application suitable for this invention, and further modifications may be readily made by those skilled in the art, and the invention is therefore not limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.

Claims

1. A miniature subwoofer, comprising:

a sound box body (1); and

a fixed ear component (2) fixedly sleeved on the periphery of the sound box body (1),

the fixed ear component (2) comprises a left fixed ear (21) and a right fixed ear (22) which are oppositely arranged, and the left fixed ear (21) and the right fixed ear (22) are in anti-symmetric structures relative to the sound box body (1).

2. A compact subwoofer according to claim 1, wherein the enclosure body (1) comprises:

a magnetism-proof cover (11), wherein the top of the magnetism-proof cover (11) is opened to form an opening;

the vibrating diaphragm, the voice coil and the permanent magnet are sequentially arranged in the antimagnetic cover (11) from top to bottom; and

a protective cover (13) which is covered on the vibrating diaphragm and seals the opening of the antimagnetic cover (11),

wherein, fixed ear subassembly (2) fixed cover is located the periphery of antimagnetic cover (11).

3. A compact subwoofer according to claim 2, wherein the left fixing ear (21) extends from both sides thereof along the periphery of the antimagnetic cover (11) to form an upper left snap ring (211) and a lower left snap ring (212), respectively.

4. A compact subwoofer according to claim 3, wherein right upper snap rings (221) and right lower snap rings (222) extend from both sides of the right fixing lug (22) along the outer circumference of the antimagnetic cover (11), respectively.

5. A compact subwoofer according to claim 4, wherein the outer end of the upper left snap ring (211) is opposite to and spaced apart from the outer end of the upper right snap ring (221) to form a first expansion joint (111) therebetween.

6. A compact subwoofer according to claim 5, wherein the outer end of the lower left snap ring (212) is opposite to and spaced apart from the outer end of the lower right snap ring (222) to form a second expansion joint (112) therebetween.

7. The compact subwoofer according to claim 6, wherein the antimagnetic cover (11) has a transverse symmetry axis X and a longitudinal symmetry axis Y on a plane of the opening, the antimagnetic cover (11) has a symmetrical structure on the plane of the opening with respect to the transverse symmetry axis X and the longitudinal symmetry axis Y, respectively, and the first expansion joint (111) and the second expansion joint (112) are arranged in an anti-symmetrical manner with respect to the transverse symmetry axis X or the longitudinal symmetry axis Y.

8. The compact subwoofer according to claim 7, wherein a line connecting the first expansion joint (111) and the second expansion joint (112) forms an included angle α with the transverse symmetry axis X, and the included angle α is 15 ° to 40 °.

9. The compact subwoofer according to claim 7, wherein the outer end surface of the upper left snap ring (211) is matched with the outer end surface of the upper right snap ring (221), the outer end surface of the upper right snap ring (221) is perpendicular to the plane of the opening and forms an included angle β with the longitudinal symmetry axis Y, and the included angle β is 16-32 °.

10. A compact subwoofer according to claim 2, wherein the shield (13) is of an upwardly arched spherical configuration, assuming that the diameter of the antimagnetic shield (11) is D, the height of the enclosure body (1) is H, and the radius of the shield (13) is R, then D: h is 2-3, and R is D.