CN210042168U

CN210042168U - Compact sound box

Info

Publication number: CN210042168U
Application number: CN201921499737.7U
Authority: CN
Inventors: 王美义
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-10
Filing date: 2019-09-10
Publication date: 2020-02-07
Anticipated expiration: 2029-09-10

Abstract

The utility model discloses a compact audio amplifier, including audio amplifier main part and handle, the inside woofer that is equipped with of audio amplifier main part is equipped with the horn chamber on the sound production face of audio amplifier main part, woofer passes through the horn chamber to the external sound production of audio amplifier main part, well audio loudspeaker and/or high pitch loudspeaker are installed in woofer's the place ahead, the same sound production face of horn chamber, well audio loudspeaker and/or high pitch loudspeaker sharing audio amplifier. Traditional installation side by side is abandoned to this application, set up woofer inside the audio amplifier body, tweeter, well audio amplifier and woofer adopt the front and back installation, and through the outside pronunciation of horn chamber, can reduce the area of sound production face, improve the space utilization of audio amplifier body, the compactedness is better, tweeter and/or well audio amplifier set up on the sound production face, make low, well/high-frequency sound wave all send toward a direction, can strengthen the directive property of sound wave transmission greatly.

Description

Compact sound box

Technical Field

The utility model relates to a broadcasting sound equipment technical field specifically is a compact audio amplifier.

Background

With the improvement of the life quality of people, the sound box product becomes a necessity for people to enjoy music or other dictation works, and is widely applied to occasions such as families, vehicles, outdoors and the like. Traditional audio amplifier is usually installed high pitch loudspeaker, midrange speaker, woofer side by side on the same sound producing face of audio amplifier, and sound generating area is big for the volume of audio amplifier is great and heavy, is unfavorable for carrying.

When the sound box is applied to a vehicle-mounted loud sound system, a user generally wants to install sound boxes in front of the roof as much as possible so as to improve the directional characteristic of sound and enable the sound to be spread farther, so that the sound-emitting surface of the sound box is required to be small, and when the sound box is applied to a vehicle, the sound-emitting surface of the sound box is just opposite to the windward side of a vehicle, and the smaller the sound-emitting surface of the sound box is, the wind resistance can be reduced. Therefore, the conventional sound box has difficulty in satisfying the above requirements.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide a compact sound box, which has a compact structure, can effectively reduce the area of the sound generating surface and enhance the directivity of sound wave transmission.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a compact audio amplifier, includes audio amplifier main part and handle, the inside woofer that is equipped with of audio amplifier main part is equipped with the horn chamber on the sound production face of audio amplifier main part, woofer passes through the horn chamber to the external sound production of audio amplifier main part, mediant speaker and/or high pitch loudspeaker are installed in woofer's the place ahead, the same sound production face of horn chamber, mediant speaker and/or high pitch loudspeaker sharing audio amplifier.

Preferably, the sound emission surface is a smallest surface of the sound box main body.

Preferably, the woofer and the midrange speaker or tweeter are disposed on the same axis.

Preferably, the woofer is arranged at the bottom or the side wall of the horn cavity, and the midrange speaker and/or the tweeter is arranged at the horn cavity emission opening.

Preferably, a cylinder is installed in the bottom of the horn cavity, the woofer is installed at the bottom of the cylinder, the middle-pitch loudspeaker or the tweeter is installed at the top of the cylinder, and a sound transmission channel is formed in a gap between the cylinder and the horn cavity.

Preferably, the woofer and the midrange speaker or the tweeter radiate in opposite directions, the radiating direction of the woofer faces the bottom of the horn cavity, the woofer emits sound, and the sound is reflected by the bottom of the horn cavity and enters the sound transmission channel.

Preferably, one side of the horn cavity is provided with a middle-tone horn and/or a high-tone horn, and the middle-tone loudspeaker and the high-tone loudspeaker are respectively connected to throats of the middle-tone horn and the high-tone horn.

Preferably, the woofer is arranged obliquely at an angle of 90-145 °.

Preferably, at least one passive radiator is arranged on the sound box main body, and the passive radiator is arranged on the inner side wall of the horn cavity and/or the side wall of the sound box main body.

Preferably, the two inclined planes are connected in a V shape, an included angle between the two inclined planes is 30-90 degrees, and the radiation direction of the woofer is over against the passive radiator.

Has the advantages that:

compared with the existing loudspeaker box, the utility model discloses loudspeaker box abandons traditional installation side by side, sets up woofer inside the audio amplifier body, and high pitch loudspeaker, mediant loudspeaker install around adopting with woofer, through the outside pronunciation of horn chamber, can reduce the area of sound production face, improve the space utilization of audio amplifier body, and the compactedness is better, and high pitch loudspeaker and/or mediant loudspeaker set up on the sound production face moreover for low, well/high-frequency sound wave all sends toward a direction, can strengthen the directive property of sound wave transmission greatly.

Drawings

Fig. 1 is a three-dimensional structure diagram of embodiment 1 of the present invention;

fig. 2 is an internal structure view of embodiment 1 of the present invention;

fig. 3 is a schematic diagram of a mediant speaker according to embodiment 1 of the present invention;

fig. 4 is a perspective structural view of embodiment 2 of the present invention;

fig. 5 is an internal structure view of embodiment 2 of the present invention;

fig. 6 is an internal structure view of embodiment 3 of the present invention;

fig. 7 is an internal structure view of embodiment 4 of the present invention;

fig. 8 is a perspective structural view of embodiment 5 of the present invention;

fig. 9 is an internal structure view of embodiment 5 of the present invention;

fig. 10 is an internal structure view of embodiment 6 of the present invention;

fig. 11 is an internal structure diagram according to embodiment 7 of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1:

referring to fig. 1 and fig. 2, the present invention provides a technical solution: the utility model provides a compact audio amplifier, includes audio amplifier main part 1 and

handle

16, 1 inside woofer 2 that is equipped with of audio amplifier main part is equipped with horn chamber 11 on the vocal face of audio amplifier main part 1, woofer 2 passes through horn chamber 11 to 1 outer sound production of audio amplifier main part, well audio amplifier 3 and high pitch loudspeaker 4 are installed in woofer 2 the place ahead, the same vocal face of horn chamber 11, well audio amplifier 3 and high pitch loudspeaker 4 sharing audio amplifier, the vocal face can be for arbitrary face of audio amplifier main part 1, preferably minimum face.

In this embodiment, one side of the horn chamber 11 is provided with a middle horn 13 and a high horn 14, and the middle speaker 3 and the high speaker 4 are respectively connected to the hornthroats of the middle horn 13 and the high horn 14. The sound that woofer 2, well sound speaker 3, high pitch loudspeaker 4 sent is passed through horn chamber 11, well sound horn 13, high pitch horn 14 respectively and is dispersed to same direction, mutual noninterference each other, and the sound of low, well, high each frequency channel all sends toward a direction, has stopped the local distortion condition at the sense of hearing position, strengthens the directive property of sound wave transmission greatly.

More in detail, horn chamber 11, well sound horn 13 with audio amplifier main part 1 is the integrated into one piece structure, high pitch horn 14 passes through the bolt and installs in the horn mounting groove of well sound horn 13 one side, be equipped with installation cavity 20 in audio amplifier main part 1, woofer 2, well sound speaker 3, tweeter 4 set up in installation cavity 20, woofer 2 connects the lateral wall of horn chamber 11.

Referring to fig. 3, a reflection cover 21 is covered over the middle speaker 2, and a winding type sound transmission channel is formed between the middle horn 13 and the reflection cover 21, and the sound transmission channel is annularly arranged on the outer side of the driving head of the middle speaker 3. The middle speaker 3 emits sound, the sound is reflected by the reflecting cover 2 and then enters the winding type sound transmission channel, and the sound is transmitted through multiple reflection, so that the transmission path of the sound is prolonged, and the finally transmitted sound is stronger and is transmitted farther.

Different with traditional audio amplifier is, this application sets up woofer 2 inside audio amplifier body 1, through the outside sound production in horn chamber 11, is favorable to reducing the sound production face of audio amplifier, can also make the structure of audio amplifier compacter, and space utilization in audio amplifier main part 1 is higher to can reduce the volume of audio amplifier main part 1. In order to prevent that audio amplifier main part 1 volume from dwindling the bass quality who influences woofer 2, passive radiator 6 is installed to audio amplifier main part 1's both sides wall, passive radiator 6 is provided with two, sets up respectively woofer 2's front and back both sides can adjust the tone quality of audio amplifier and make it have better bass performance, can also eliminate the disturbance of audio amplifier main part 1 air current.

In this embodiment, the sound emitted from the woofer 2, the middle speaker 3, and the tweeter 4 is directionally dispersed from the sound-producing surface through the horn chamber 11, the middle horn 13, and the tweeter 14, respectively, the frequency field width of the sound box can improve the efficiency of the woofer 2, the middle speaker 3, and the tweeter 4, the radiation of the sound is concentrated in the horn direction, the sensitivity is higher, the direction is good, and the volume is small.

Example 2:

referring to fig. 4 and 5, the present invention provides a technical solution: the utility model provides a compact audio amplifier, includes audio amplifier main part 1 and

handle

In the present embodiment, the woofer 2 and the midrange speaker 3 are disposed on the same axis. Woofer 2 sets up the bottom in horn chamber 11, mediant speaker 3 sets up horn chamber 11 delivery port department. Install barrel 5 in the bottom in horn chamber 11, the bottom installation of barrel 5 woofer 2, the top installation of barrel 5 mediant speaker 3, barrel 5 with the clearance formation sound transmission channel between horn chamber 11.

The bottom in No. 11 cylinder chambers is equipped with three bolt sleeve 15, barrel 5 passes through the bolt fastening is in the upper end of bolt sleeve 15, woofer 2 with there is the clearance between No. 11 cylinder chambers bottoms, woofer 2 with the radiation direction of mediant speaker 3 is opposite, woofer 2's radiation direction orientation No. 11 cylinder chambers's bottom, woofer 2 sound, sound process go into sound transmission passageway behind No. 11 cylinder chambers's the bottom reflection.

The top of barrel 5 is installed well sound horn 13, well sound speaker 3 is connected the horn larynx department of well sound horn 13, the radiation direction orientation of well sound speaker 3 horn chamber 11 transmission mouth.

This application is through with

mediant speaker

3, 2 coaxial arrangements of woofer are together, make the bass, mediant all can send toward a direction through number section of thick bamboo chamber 11, the local distortion condition at the sense of hearing position has been stopped, the directive property of reinforcing sound wave transmission has been improved greatly, and, woofer 2 need not to set up at the sound plane, be favorable to dwindling the area of sound plane, the sound that woofer 2 sent can go into sound transmission channel after 11 bottom reflections in number section of thick bamboo chamber, the propagation path of sound has been prolonged, the propagation efficiency of sound is higher, and then improve product wholeness ability.

In other embodiments, the midrange speaker 13 at the top of the barrel 5 may be replaced with a tweeter, depending on the frequency field requirements of the product.

Example 3:

referring to fig. 6, the present invention provides a technical solution: the utility model provides a compact audio amplifier, includes audio amplifier main part 1 and

handle

Be equipped with a passive radiator 6 on audio amplifier main part 1, passive radiator 6 sets up the inside wall in horn chamber 11, more detailed, the bottom in horn chamber 11 is equipped with two inclined planes, woofer 2, passive radiator 6 fixed mounting respectively on the inclined plane. Two the slope is personally submitted the V style of calligraphy and is connected, and two contained angle between the slope is 73, woofer 2's radiation direction is just right passive radiator 6. Passive radiator 6 can with the burden that woofer 2 produced the bass is transferred to passive radiator 6 on, passive radiator 6 can carry out bigger linear vibration this moment, and the low frequency response point extends more lowly, and this design can make the audio amplifier can be equipped with woofer 2 of smaller size, is favorable to reducing the volume of audio amplifier, and can make bass and intermediate frequency response more accurate, and the separation degree is better.

In more detail, in this embodiment, the middle speaker 3 and the tweeter 4 are both disposed in the horn chamber 11, and the middle speaker 3 and the tweeter 4 are respectively connected to the bottoms of the middle horn 13 and the tweeter 14. Middle pitch horn 13, high pitch horn 14 pass through the bolt or the iron wire is fixed the radiation mouth department in horn chamber 11, horn chamber 11 with middle pitch horn 13, high pitch horn 14 interference fit.

The bass frequency of the bass loudspeaker 2 is 20Hz-160 Hz, the lower the frequency, the better the diffraction of the sound, the sound of the bass loudspeaker 2 in the horn cavity 11 can bypass the middle loudspeaker 3 and the high loudspeaker 4 and can be emitted out of the horn cavity 11.

Woofer 2, well sound speaker 3, high pitch loudspeaker 4 all set up in horn chamber 11, woofer 2 well sound speaker 3, high pitch loudspeaker 4 are respectively through horn chamber 11, well sound horn 13, high pitch horn 14 to the sound production face sound production, mutual noninterference, and directive property is strong, and sound propagation efficiency is high.

Example 4:

this embodiment differs from embodiment 1 described above in that: referring to fig. 7, in this embodiment, the woofer 2 is disposed in the mounting cavity 20, the horn cavity 11 communicates with the mounting cavity 20, the mounting plate 22 that is disposed obliquely is disposed in the mounting cavity 20, the woofer 2 may be connected to the inclined plate 22 by a bolt or a weld, the woofer 2 is fixed to the bottom of the horn cavity 11, and the emission direction of the woofer 2 faces the horn cavity 11.

Furthermore, tweeter 4 connects the horn throat of tweeter 14, tweeter 14 passes through bolt or iron wire to be fixed horn chamber 11's radiation mouth department, horn chamber 11 with tweeter 14 interference fit utilizes the peculiar diffraction nature of bass, and the sound that woofer 2 in horn chamber 11 sent can be walked around tweeter 4 launches from the radiation mouth.

The woofer 2 is arranged in the mounting cavity 20 in the sound box main body, the rigidity of resonance of the motion quality of the woofer 2 is added, the lowest resonance frequency of the woofer 2 is increased, therefore, the sound color emitted by the woofer 2 in the sound box main body 1 is deep, but the high-pitch analysis force is good, the non-fluctuating sound generated in the horn chamber 11 is prevented, the passive radiator 6 is arranged on the side wall of the horn chamber 11, the passive radiator 6 is fixed through bolts, good sound radiation effect can be obtained even if the volume of the horn chamber 11 is small, the sensitivity is high, the standing wave striking is small, and the sound of the sound box is clear and clear.

Example 5:

this embodiment differs from embodiment 3 described above in that: referring to fig. 8-9, in this embodiment, the bottom of the horn chamber 11 is provided with two inclined surfaces, the two inclined surfaces are connected in a V shape, an included angle between the two inclined surfaces is 35 °, and the radiation direction of the woofer 2 is opposite to the passive radiator 6. The high pitch loudspeaker 4 sets up in the horn chamber 11, the medium pitch loudspeaker 3 sets up one side of horn chamber 11, medium pitch loudspeaker 3, high pitch loudspeaker 4 are connected respectively the medium pitch horn 13, high pitch horn 14 bottom. Middle pitch horn 13 with audio amplifier main part 1 integrated into one piece, high pitch horn 14 passes through the bolt or the iron wire is fixed the radiation mouth department of horn chamber 11, horn chamber 11 with high pitch horn 14 interference fit. The sound emitted from the woofer 2 in the horn chamber 11 may be emitted from the horn chamber 11 bypassing the tweeter 4.

Example 6:

this embodiment differs from embodiment 3 described above in that: referring to fig. 10, in this embodiment, the bottom of the horn chamber 11 is provided with two inclined planes, two inclined planes are connected in a V shape, an included angle between the two inclined planes is 72 °, and the radiation direction of the woofer 2 is opposite to the passive radiator 6. The high pitch loudspeaker 4 is arranged in the horn cavity 11, and the high pitch loudspeaker 4 is connected to the bottom of the high pitch horn 14. The high pitch horn 14 is fixed through bolt or iron wire the radiation mouth department of horn chamber 11, horn chamber 11 with high pitch horn 14 interference fit. The sound emitted from the woofer 2 in the horn chamber 11 may be emitted from the horn chamber 11 bypassing the tweeter 4.

In other embodiments, the tweeter 14 at the top of the horn cavity 11 may be replaced with a midrange speaker, depending on the frequency field requirements of the product.

Example 7:

this embodiment differs from embodiment 1 described above in that: referring to fig. 11, in this embodiment, a mounting plate 22 is disposed in the cabinet main body 1 in an inclined manner, the woofer 2 may be connected to the inclined plate 22 by a bolt or by welding, the woofer 2 is fixed to the bottom of the cabinet cavity 11 in an inclined manner, and the angle of inclination of the woofer 2 is 90 ° to 145 °.

The emission direction of the woofer 2 is directed toward the horn chamber 11. In the present embodiment, the woofer 2 is disposed obliquely at an angle of 120 °.

The loudspeaker box is characterized in that a passive radiator 6 is arranged on the loudspeaker box main body 1, and the passive radiator 6 is arranged on the side wall of the loudspeaker box main body 1.

In summary, the sound box comprises the high pitch loudspeaker, the middle pitch loudspeaker and the low pitch loudspeaker, the frequency field of the sound box is wide, the three loudspeakers are independently arranged and do not interfere with each other, the frequency band of each loudspeaker is ensured to the maximum extent, sound is emitted towards one direction in the sound production process of the sound box, and the directivity of sound wave transmission is greatly improved; moreover, the utility model replaces the traditional parallel installation, the woofer is arranged inside the sound box body, the high pitch loudspeaker, the middle pitch loudspeaker and the woofer are arranged front and back, the area of the sound production surface can be reduced by making sound through the horn cavity, the space utilization rate of the sound box body is improved, the compactness is better, and the high pitch loudspeaker and/or the middle pitch loudspeaker are arranged on the sound production surface, so that the sound waves with low frequency, middle frequency and high frequency are all emitted in one direction, and the directivity of sound wave transmission can be greatly enhanced; in addition, the horn sound transmission mode is adopted, the efficiency of each loudspeaker can be improved, the radiation energy of sound is concentrated in the horn direction, and therefore the directivity of sound emission is controlled, and the sensitivity of the loudspeaker is higher.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A compact audio amplifier, includes audio amplifier main part (1) and handle (16), its characterized in that: loudspeaker box main part (1) inside is equipped with woofer (2), is equipped with horn chamber (11) on the sound production face of loudspeaker box main part (1), woofer (2) pass through horn chamber (11) to loudspeaker box main part (1) outer sound production, well audio amplifier (3) and/or high pitch loudspeaker (4) are installed in the place ahead of woofer (2), same sound production face of loudspeaker box is shared to horn chamber (11), well audio amplifier (3) and/or high pitch loudspeaker (4).

2. A compact acoustic enclosure as claimed in claim 1, wherein: the bass loudspeaker (2) and the middle-pitch loudspeaker (3) or the high-pitch loudspeaker (4) are arranged on the same axis.

3. A compact acoustic enclosure as claimed in claim 1, wherein: woofer (2) set up the bottom or the lateral wall in horn chamber (11), well audio amplifier (3) and/or tweeter (4) set up horn chamber (11) delivery port department.

4. A compact acoustic enclosure as claimed in claim 2, wherein: install barrel (5) in the bottom of horn chamber (11), the bottom installation of barrel (5) woofer (2), the top installation of barrel (5) well sound speaker (3) or tweeter (4), barrel (5) with clearance between horn chamber (11) forms sound transmission channel.

5. A compact acoustic enclosure as claimed in claim 4, wherein: woofer (2) with the radiation direction of well audio amplifier (3) or tweeter (4) is opposite, the radiation direction orientation of woofer (2) the bottom in horn chamber (11), woofer (2) sound, sound process get into sound transmission path after the bottom reflection in horn chamber (11).

6. A compact acoustic enclosure as claimed in claim 1, wherein: one side of horn chamber (11) is equipped with well sound horn (13) and/or high pitch horn (14), well sound speaker (3), high pitch loudspeaker (4) are connected respectively the throat of well sound horn (13), high pitch horn (14).

7. A compact acoustic enclosure as claimed in claim 1, wherein: the woofer (2) is obliquely arranged, and the inclination angle is 90-145 degrees.

8. A compact acoustic enclosure as claimed in any one of claims 1 to 7, wherein: the loudspeaker box is characterized in that at least one passive radiator (6) is arranged on the loudspeaker box main body (1), and the passive radiator (6) is arranged on the inner side wall of the horn cavity (11) and/or the side wall of the loudspeaker box main body (1).

9. A compact acoustic enclosure as claimed in claim 8, wherein: the bottom in horn chamber (11) is equipped with two inclined planes, woofer (2), passive radiator (6) fixed mounting respectively on the inclined plane.

10. A compact acoustic enclosure as claimed in claim 9, wherein: the two inclined planes are connected in a V shape, an included angle between the two inclined planes is 30-90 degrees, and the radiation direction of the woofer (2) is over against the passive radiator (6).