CN212305636U

CN212305636U - Sound box assembly of projection equipment and projection equipment

Info

Publication number: CN212305636U
Application number: CN202021264551.6U
Authority: CN
Inventors: 黄孝成
Original assignee: Shenzhen Bonage Technology Co Ltd
Current assignee: Shenzhen Bonage Technology Co Ltd
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2021-01-05
Anticipated expiration: 2030-07-02

Abstract

The utility model discloses a projection equipment's audio amplifier subassembly and projection equipment, wherein the audio amplifier subassembly includes that the full frequency loudspeaker that drum paper and full frequency drive assembly constitute and the sound chamber that protecgulum and back lid are constituteed, full frequency loudspeaker are installed in the sound intracavity, be equipped with the tuber pipe on the inside wall of back lid, the tuber pipe includes the first wind gap and the second wind gap at body and body both ends, first wind gap is located inside the back lid, the second wind gap is located the back lid outside, the tuber pipe makes the inside and outside air in sound chamber come and go the circulation. The utility model discloses through cancellation vibrating diaphragm and adopt the design of tuber pipe, restore the tone quality of original sound better, improved the stereovision of high school bass frequency, reduced noise and distortion problem that the vibration caused effectively, make the sound clearer; the design of tuber pipe can reduce the volume of audio amplifier subassembly on the inner wall well, makes the audio amplifier subassembly realize better tone quality through littleer volume.

Description

Sound box assembly of projection equipment and projection equipment

Technical Field

The utility model relates to a projection equipment technical field, in particular to projection equipment's audio amplifier subassembly and projection equipment.

Background

Along with the continuous development of projection equipment technique, domestic projecting apparatus has obtained more and more extensive application, and the user has also produced different demands in the aspect of tone quality, picture quality to projection equipment, and loudspeaker among the current domestic projection equipment mostly adopt the vibrating diaphragm structure, but the vibrating diaphragm can make loudspeaker's tone quality have shortcomings such as noise, distortion, especially can produce overweight bass at the low frequency range, makes the tone quality distortion more serious, consequently the utility model discloses to above-mentioned defect, improved projection equipment's loudspeaker.

SUMMERY OF THE UTILITY MODEL

Problem to prior art existence, the utility model provides a projection equipment's audio amplifier subassembly and projection equipment.

In order to achieve the above purpose, the specific scheme of the utility model is as follows:

the utility model provides a projection equipment's audio amplifier subassembly, includes that full loudspeaker and protecgulum that full frequency drive assembly constitutes and the sound chamber that back lid constitutes are full to drum paper, full frequency loudspeaker are installed in the sound intracavity, be equipped with the tuber pipe on the inside wall of back lid, the tuber pipe includes body and the first wind gap and the second wind gap at body both ends, first wind gap is located inside the back lid, the second wind gap is located the back lid outside, the tuber pipe makes the inside and outside circulation of coming and going of sound chamber air.

Preferably, the inner diameters of the first tuyere and the second tuyere are the same.

Preferably, the inner diameter of the first tuyere is greater than the inner diameter of the second tuyere.

Preferably, the front cover and the rear cover are detachably mounted.

Preferably, the front surface of the front cover is provided with an opening for fixing the drum paper.

The utility model also provides a projection equipment, including a plurality of as above the audio amplifier subassembly.

Adopt the technical scheme of the utility model, following beneficial effect has:

the utility model discloses a cancellation vibrating diaphragm adopts the design of tuber pipe, has restoreed the tone quality of original sound better, has improved the stereovision of high school bass frequency, has reduced noise and distortion problem that the vibration caused effectively, makes the sound clearer; the design of tuber pipe can reduce the volume of audio amplifier subassembly on the inner wall well, makes the audio amplifier subassembly realize better tone quality through littleer volume.

Drawings

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

FIG. 2 is a back perspective view of the present invention;

fig. 3 is a front perspective view of the present invention.

The air-blowing type air-blowing device comprises a front cover 1, an opening 2, a piece of 3-blowing paper, a full-frequency driving assembly 4, a rear cover 5, an air pipe 6, a first air port 61, a second air port 62 and a pipe body 63.

Detailed Description

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

Referring to fig. 1 to 3, the utility model provides a projection equipment's audio amplifier subassembly, including 3 full loudspeaker and protecgulum 1 and the sound chamber that back lid 5 constitutes of full frequency drive assembly 4 constitution of drum paper, full frequency loudspeaker are installed in the sound intracavity, protecgulum 1 openly is equipped with the opening 2 that is used for fixed drum paper, and full frequency loudspeaker's size can be adjusted according to the volume in sound chamber,

protecgulum

1 and 5 demountable installation of back lid, and it is more convenient to assemble.

An air pipe 6 is arranged on the inner side wall of the rear cover 5, and the volume of the sound cavity can be reduced to the maximum extent by designing the air pipe 6 on the inner side wall of the rear cover 5; the air pipe 6 comprises a pipe body 63, a first air opening 61 and a second air opening 62 which are arranged at two ends of the pipe body, the first air opening 61 is positioned inside the rear cover 5, the second air opening 62 is positioned outside the rear cover 5, and the air inside and outside the sound cavity is circulated back and forth by the air pipe 6.

The inner diameters of the first air opening 61 and the second air opening 62 are the same, or the inner diameter of the first air opening 61 is larger than that of the second air opening 62, so that when air circulates back and forth in the air pipe 6, the air is extruded into the sound cavity from the outside of the sound cavity, the sound quality of original sound is better restored, and the layering of high, medium and low audio frequencies is improved.

The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all of which are in the utility model discloses a conceive, utilize the equivalent structure transform that the content of the specification and the attached drawings did, or directly/indirectly use all to include in other relevant technical fields the protection scope of the present invention.

Claims

1. The utility model provides a projection equipment's audio amplifier subassembly, its characterized in that, including the full loudspeaker of full frequency that the drive assembly constitutes of drum paper and full frequency and the sound chamber that protecgulum and back lid are constituteed, full frequency loudspeaker are installed in the sound intracavity, be equipped with the tuber pipe on the inside wall of back lid, the tuber pipe includes the first wind gap and the second wind gap at body and body both ends, first wind gap is located inside the back lid, the second wind gap is located the back lid outside, the tuber pipe makes the inside and outside circulation of coming and going of air in sound chamber.

2. The speaker assembly of a projection device of claim 1, wherein the first and second vents have inner diameters of the same size.

3. The speaker assembly of a projection device of claim 1, wherein an inner diameter of the first port is larger than an inner diameter of the second port.

4. The speaker assembly of a projection device of claim 2 or 3, wherein the front cover and the rear cover are detachably mounted.

5. The speaker assembly of a projection device as claimed in claim 4, wherein the front cover has an opening on a front surface thereof for fixing the drum paper.

6. A projection device comprising a plurality of the loudspeaker assemblies of any one of claims 1-5.