CN202183846U

CN202183846U - Ultrathin bar-shaped acoustic device

Info

Publication number: CN202183846U
Application number: CN2011202382835U
Authority: CN
Inventors: 马春彪; 耿云瑶
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-07-07
Filing date: 2011-07-07
Publication date: 2012-04-04
Anticipated expiration: 2021-07-07

Abstract

The utility model relates to an ultrathin bar-shaped acoustic device, which belongs to an electroacoustic device. Peripheral frames of a decorative cover are adhered to the outer surface of a front casing body through a binding material. A multifunctional base is connected with the outer surface of a rear casing body in locking mode through a clamp buckle. A screw assembling hole supporting base is arranged in the rear casing body, and the front casing body and the rear casing body are fixedly connected through the screw assembling hole supporting base to form a cavity arranged in symmetrical mode. The center of the cavity is separated through a partition board to form two cavity bodies which are symmetrical in left and right mode. A flat diaphragm loud speaker, a high frequency loud speaker and a passive radiation basin are arranged in the cavity and fixedly connected with the front casing body through screws. The passive radiation basin is composed of a concave folding plate and a flat diaphragm. The ultrathin bar-shaped acoustic device has the advantages of being capable of obtaining a high fidelity playback effect of a sound field and remarkably improving low pitch effect of the acoustic device, adopting a thin design, and extending low frequency response frequency by 50 Hz downwards.

Description

A kind of ultra-thin bar shaped sound equipment

Technical field

The utility model belongs to electro-acoustic element, refers in particular to a kind of sound equipment.

Background technology

Along with developing rapidly and telecommunications network, broadcasting and television network, the Internet " unification of three nets " planning that country releases of panel TV, projecting apparatus and computer; It is video display terminal with panel TV, projecting apparatus, big screen LCD that force urges will be arranged, and cooperates high-fidelity around the family multi-media amusement platform of audio system popularizing of market at home.The thickness of LED panel TV has reached the millimeter level at present, receives ultra-thin flat-panel TV shell restriction, and the built-in sound equipment of panel TV can only use undersized loud speaker, has a strong impact on the playback effect of low frequency sound field; And because the screen of panel TV is tending towards maximizing, the distance of user and TV is more and more far away, causes sound field directive property and the best contradiction of listening to the position to become increasingly conspicuous; In addition, flat-panel TV shell thinner thickness, built-in sound equipment design improper meeting and cause resonance, have a strong impact on the normal result of use of sound equipment.

Traditional sound system based on conical diaphragm piston vibration principle needs many high pitchs, middle pitch and woofers combination to use, and cooperates complicated dividing network, form 5.1 or 7.1 patterns around sound field.Whole system is bulky, heavy; Installation and Debugging are loaded down with trivial details, and wiring is mixed and disorderly, tends to destroy the room decorating effect, is difficult to be fused into one in the household style.

Present bar shaped acoustic product, the model as Philips, Sony, Yamaha, the well-known sound equipment of three magnitudes manufacturer are released has 2～5 loud speakers, integrated functions such as power amplifier, audio frequency input, sound signal reprocessing.Compare with traditional sound equipment, volume is littler, and modes of emplacement is more flexible, more coordinates with the panel TV collocation.Weak point is, still adopts traditional conical diaphragm loud speaker, and integral thickness is difficult to reduce, and is difficult to be fused into one in the household style; The product frequency response range is between 200Hz ~ 20kHz, and the low frequency sound field poor effect needs collocation extra woofer or subwoofer audio amplifier.

Summary of the invention

The utility model provides a kind of ultra-thin bar shaped sound equipment, to solve the problem of present bar shaped sound equipment low frequency sound field poor effect.

The technical scheme of the utility model is: frame is bonding through the outer surface of bonding agent and procapsid around the decorative face helmet; Multifunctional base is connected through snap lock with the outer surface of back casing, and screw pilot hole bearing is arranged in the back casing, and procapsid is fixedly connected through screw pilot hole bearing with back casing; Form the cavity of a symmetric arrangement; Cavity central authorities are isolated by demarcation strip, form symmetrical two cavitys, and plate diaphragm loud speaker, tweeter, passive Caloris Basin are positioned at cavity; And be fixedly connected with procapsid through screw, passive Caloris Basin is made up of concave shaped ring and plate diaphragm.

The advantage of the utility model is: can realize the high-fidelity playback effect of sound field, obviously promote the bass effect of sound equipment, and the slimming design, the LF-response frequency is to having extended below 50Hz.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of passive Caloris Basin among Fig. 1.

Embodiment

Frame is bonding through the outer surface of bonding agent and procapsid 2 around the decorative face helmet 1; Multifunctional base 8 is connected through snap lock with the outer surface of back casing 4, and screw pilot hole bearing 7 is arranged in the back casing 4, and procapsid 2 is fixedly connected through screw pilot hole bearing 7 with back casing 4; Form the cavity of a symmetric arrangement; Cavity central authorities are isolated by demarcation strip, form symmetrical two cavitys, and plate diaphragm loud speaker 3, tweeter 5, passive Caloris Basin 6 are positioned at cavity; And be fixedly connected with procapsid 2 through screw, passive Caloris Basin 6 is made up of concave shaped ring 9 and plate diaphragm 10.

The working method of the utility model: the output signal of source of sound inserts plug through built-in power amplifier processing through the audio signal of multifunctional base 8; Drive said ultra-thin bar shaped sound equipment inner plate diaphragm loud speaker 3 and tweeter 5; Produce the mechanical oscillation of expecting at procapsid 2 and the closed box that back casing 4 forms, promote air and sound; Because the double vibrations of plate diaphragm loud speaker 3; The passive Caloris Basin 6 of left and right sides inside cavity receives the air vibration that 2 plate diaphragm loud speakers 3 are produced separately when work; Passive Caloris Basin 6 receives excitation and produces corresponding vibration; Through calculating passive Caloris Basin 6 sectional dimensions of confirming in advance, can significantly promote the audio of the bass zone of said ultra-thin bar shaped sound equipment.

Claims

1. ultra-thin bar shaped sound equipment is characterized in that: frame is bonding through the outer surface of bonding agent and procapsid around the decorative face helmet, and multifunctional base is connected through snap lock with the outer surface of back casing; Screw pilot hole bearing is arranged in the back casing; Procapsid is fixedly connected through screw pilot hole bearing with back casing, forms the cavity of a symmetric arrangement, and cavity central authorities are isolated by demarcation strip; Form symmetrical two cavitys; Plate diaphragm loud speaker, tweeter, passive Caloris Basin are positioned at cavity, and are fixedly connected with procapsid through screw, and passive Caloris Basin is made up of concave shaped ring and plate diaphragm.