CN218450479U - Broadcasting sound box - Google Patents

Abstract

The utility model discloses a broadcasting sound box, the power distribution box comprises a box body, be provided with bass cavity, well bass compressor and high pitch horn safety cover in the box, be provided with woofer in the bass cavity, well bass compressor and high pitch horn safety cover constitute a cavity, be provided with loudspeaker in the cavity, loudspeaker and the coaxial setting of woofer, the symmetry axis of well bass compressor and high pitch horn safety cover and loudspeaker's axis coincidence. The utility model discloses a with loudspeaker and the coaxial setting of woofer to set up loudspeaker in the cavity that well woofer and high pitch horn safety cover constitute, and make loudspeaker coaxial with well woofer compressor and high pitch horn safety cover, improved the not good problem of current broadcast audio amplifier broadcast bass effect.

Description

Broadcasting sound box

Technical Field

The utility model relates to a transmission broadcasting equipment technical field, in particular to broadcast audio amplifier.

Background

As an extremely important component of an acoustic system, a sound box is often used to convert audio electric energy into corresponding sound energy and radiate the sound energy into a space. The existing broadcast sound box is structurally characterized in that a high pitch loudspeaker is arranged in the center of a low pitch loudspeaker so as to be convenient for playing medium and low pitches and high pitches, but the playing quality is poor due to linear distortion of audio signals.

Thus, the prior art has yet to be improved and enhanced.

SUMMERY OF THE UTILITY MODEL

In view of the foregoing disadvantages of the prior art, an object of the present invention is to provide a broadcast speaker, which aims to solve the problem of poor bass effect of broadcast speakers in the prior art.

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

the utility model provides a broadcasting sound box, includes the box, be provided with bass cavity, well bass compressor and high pitch horn safety cover in the box, be provided with woofer in the bass cavity, well bass compressor and high pitch horn safety cover constitute a cavity, be provided with loudspeaker in the cavity, loudspeaker and the coaxial setting of woofer, the symmetry axis of well bass compressor and high pitch horn safety cover and loudspeaker's axis coincidence.

The open end of well bass compressor sets up towards high pitch horn safety cover one side, just the open end of well bass compressor and high pitch horn safety cover are fixed in the inner wall of box, the blind end of well bass compressor sets up towards woofer one side, just the blind end of well bass compressor is the curved surface.

The closed end of the alto-bass compressor is provided with a concave part.

The utility model discloses a high pitch horn safety cover, including the cover body and water conservancy diversion spare, the one end of water conservancy diversion spare and loudspeaker's end connection, the other end and the cover body coupling of water conservancy diversion spare, water conservancy diversion spare and loudspeaker coaxial setting.

The inner wall of water conservancy diversion spare is the curved surface, just the internal diameter of water conservancy diversion spare is along the direction crescent of keeping away from loudspeaker.

The cover body and the flow guide piece are of an integrally formed structure.

All be provided with solid fixed ring on the outer wall of well bass compressor and high pitch horn safety cover, gu fixed ring is fixed with the boss spiro union in the box, gu fixed ring on the bass compressor contacts with the terminal surface of boss, the outer wall of well bass compressor contacts with the side of boss.

The side of boss is the curved surface, the height of boss is along keeping away from woofer's direction increase gradually.

The woofer is cone loudspeaker, the tweeter is horn type loudspeaker.

And part of the closed end of the midbass compressor is positioned at the inner side of the conical cone of the woofer.

Compared with the prior art, the utility model provides a pair of broadcasting sound box, the power distribution box comprises a box body, be provided with bass cavity, well bass compressor and high pitch horn safety cover in the box, be provided with woofer in the bass cavity, well bass compressor and high pitch horn safety cover constitute a cavity, be provided with loudspeaker in the cavity, loudspeaker and the coaxial setting of woofer, the symmetry axis of well bass compressor and high pitch horn safety cover and loudspeaker's dead in line. The utility model discloses a with loudspeaker and the coaxial setting of woofer to set up loudspeaker in the cavity that well woofer compressor and high pitch horn safety cover constitute, and make loudspeaker coaxial with well woofer compressor and high pitch horn safety cover, improved the not good problem of current broadcast audio amplifier broadcast bass effect.

Drawings

Fig. 1 is a cross-sectional view of the broadcast speaker provided by the present invention.

Fig. 2 is a schematic structural diagram of the broadcast speaker provided by the present invention.

Detailed Description

In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the following description of the present invention will refer to the accompanying drawings and illustrate embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It will be understood that when an element is referred to as being "on," "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

It should be noted that the terms of orientation such as left, right, up and down in the embodiments of the present invention are only relative to each other or are referred to the normal use state of the product, and should not be considered as limiting.

The utility model provides a broadcasting sound box please refer to fig. 1 and fig. 2, the power distribution box comprises a box body 1, be provided with bass cavity 2, well woofer compressor 3 and high pitch horn safety cover 4 in the box 1, be provided with woofer 5 in the bass cavity 2, well woofer compressor 3 and high pitch horn safety cover 4 constitute a cavity, be provided with tweeter 6 in the cavity, tweeter 6 and the coaxial setting of woofer 5, the symmetry axis of well woofer compressor 3 and high pitch horn safety cover 4 and the coincidence of the axis of tweeter 6. The utility model discloses a with the coaxial setting of loudspeaker 6 and woofer 5 to set up loudspeaker 6 in the cavity that well bass compressor 3 and high pitch horn safety cover 4 constitute, and make loudspeaker 6 coaxial with well bass compressor 3 and high pitch horn safety cover 4, improved the not good problem of current broadcast audio amplifier broadcast bass effect.

The open end of well bass compressor 3 sets up towards high pitch horn safety cover 4 one side, just the open end and the high pitch horn safety cover 4 of well bass compressor 3 are fixed in the inner wall of box 1, the blind end of well bass compressor 3 sets up towards woofer 5 one side, just the blind end of well bass compressor 3 is the curved surface. The partially closed end of the bass compressor 3 is located inside the cone of the woofer 5. The side of woofer 5 and the interior wall connection of box 1 for fixed woofer 5, woofer 5 is close to the blind end of high pitch horn safety cover 4. The distance between the woofer 5 and the midbass compressor 3 is 10-15mm, so that on one hand, the phenomenon that the normal work of the woofer 5 is influenced due to the fact that a conical cone of the woofer 5 is contacted with the midbass compressor 3 during vibration is avoided, and on the other hand, the phenomenon that the low-frequency propagation effect is poor due to the fact that the distance between the woofer 5 and the midbass compressor 3 is too large is avoided.

The blind end of well bass compressor 3 is provided with depressed part 31, depressed part 31 avoids producing the influence to the low frequency sound that woofer 5 produced towards tweeter 6 place one side. The front end of woofer 5 is provided with dustproof cap (not mark in the picture), the protruding direction orientation of dustproof cap depressed part one side, just the curved surface radian of dustproof cap is the same with the curved surface radian of depressed part 31, avoids influencing the low frequency propagation effect. The action principle of the bass compressor 3 on sound belongs to the prior art, and is not described herein.

The high pitch horn protection cover 4 comprises a cover body 41 and a flow guide piece 42, one end of the flow guide piece 42 is connected with the end face of the high pitch horn 6, the other end of the flow guide piece 42 is connected with the cover body 41, and the flow guide piece 42 and the high pitch horn 6 are coaxially arranged. The water conservancy diversion piece 42 is the horn shape, the rear end of water conservancy diversion piece 42 is for having the disc of through-hole, just the terminal surface and the disc fixed connection of tweeter 6, the front end of water conservancy diversion piece 42 is towards extending all around and connecting in the cover body 41, the terminal surface of the cover body 41 and the terminal surface contact of high pitch horn safety cover 4 are fixed in on box 1 together. Preferably, loudspeaker 6 and high pitch horn safety cover 4 are integrated into one piece structure, through being fixed in the inner wall of box 1 with high pitch horn safety cover 4, and then realized the installation to loudspeaker 6, simple structure, simple to operate further makes loudspeaker 6 and water conservancy diversion piece 42 coaxial simultaneously, has ensured the quality of sound reproduction effect.

The inner wall of water conservancy diversion spare 42 is the curved surface, just the internal diameter of water conservancy diversion spare 42 is along the direction crescent of keeping away from loudspeaker 6, through the internal diameter of increase water conservancy diversion spare 42, and then has increased the cross-section of water conservancy diversion spare 42 for the sound production of broadcast audio amplifier more has directive property and ductility.

The cover body 41 and the flow guide piece 42 are of an integrally formed structure, so that the assembly of the high-pitch horn protection cover 4 and the box body 1 is more convenient.

All be provided with solid fixed ring 7 on the outer wall of well bass compressor 3 and high pitch horn safety cover 4, gu fixed ring 7 is fixed with the boss 8 spiro union in the box 1, gu fixed ring 7 on the bass compressor 3 contacts with the terminal surface of boss 8, the outer wall of well bass compressor 3 contacts with the side of boss 8. The side of the boss 8 is a curved surface, and the height of the boss 8 is gradually increased along the direction far away from the woofer 5. Through gu fixed ring 7 passes through the mode fastening of spiro union with boss 8 on well bass compressor 3, high pitch horn safety cover 4 and the 1 inner wall of box, reduces the area of contact of high pitch horn 6 and box 1 in fixed high pitch horn 6, avoids influencing the sound production effect of high pitch horn 6. The setting of boss 8 on the one hand plays the fixed action through boss 8 and solid fixed ring 7 centering bass compressor 3 and high pitch horn safety cover 4, and on the other hand carries on spacingly through 8 centering bass compressors of boss 3.

Woofer 5 is cone loudspeaker, loudspeaker 6 is horn type loudspeaker, makes up into the broadcast audio amplifier through setting up cone loudspeaker and horn type loudspeaker are coaxial, strengthens the directionality of sound propagation on the one hand for the sound transmission is farther, and on the other hand has avoided the problem of the linear distortion of audio signal, improves the sound reproduction quality.

To sum up, the utility model provides a pair of broadcast audio amplifier, the power distribution box comprises a box body, be provided with bass cavity, well bass compressor and high pitch horn safety cover in the box, be provided with woofer in the bass cavity, well bass compressor and high pitch horn safety cover constitute a cavity, be provided with tweeter in the cavity, tweeter and the coaxial setting of woofer, the symmetry axis of well bass compressor and high pitch horn safety cover and the coincidence of tweeter's axis. The utility model discloses a with loudspeaker and the coaxial setting of woofer to set up loudspeaker in the cavity that well woofer compressor and high pitch horn safety cover constitute, and make loudspeaker coaxial with well woofer compressor and high pitch horn safety cover, improved the not good problem of current broadcast audio amplifier broadcast bass effect.

It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such alterations and modifications should fall within the scope of the appended claims.

Claims (10)

1. The utility model provides a broadcasting sound box, a serial communication port, the power distribution box comprises a box body, be provided with bass cavity, well bass compressor and high pitch horn safety cover in the box, be provided with woofer in the bass cavity, well bass compressor and high pitch horn safety cover constitute a cavity, be provided with tweeter in the cavity, tweeter and woofer coaxial setting, the symmetry axis of well bass compressor and high pitch horn safety cover and tweeter's axis coincidence.

2. The broadcast speaker of claim 1, wherein the open end of the midbass compressor is disposed toward the tweeter shield, the open end of the midbass compressor and the tweeter shield are fixed to an inner wall of the cabinet, the closed end of the midbass compressor is disposed toward the woofer, and the closed end of the midbass compressor is curved.

3. The broadcast enclosure of claim 2, wherein the closed end of the midbass compressor is provided with a recess.

4. The broadcast speaker of claim 1, wherein the tweeter horn protector includes a cover body and a flow guide, one end of the flow guide being connected to an end face of the tweeter, the other end of the flow guide being connected to the cover body, the flow guide being disposed coaxially with the tweeter.

5. The broadcast speaker of claim 4, wherein the inner wall of the baffle is curved and the inner diameter of the baffle gradually increases in a direction away from the tweeter.

6. The broadcast speaker of claim 4, wherein the cover and the baffle are integrally formed.

7. The broadcasting sound box of claim 1, wherein fixing rings are respectively arranged on the outer walls of the midbass compressor and the tweeter horn protection cover, the fixing rings are fixed with a boss in the box body in a threaded manner, the fixing rings on the midbass compressor are in contact with the end face of the boss, and the outer wall of the midbass compressor is in contact with the side face of the boss.

8. The broadcast enclosure of claim 7, wherein the side surfaces of the bosses are curved, and the height of the bosses increases in a direction away from the woofer.

9. The broadcast enclosure of claim 2, wherein the woofer is a cone horn and the tweeter is a horn.

10. The broadcast enclosure of claim 9, wherein the partially closed end of the midbass compressor is located inside a cone of a woofer.

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