CN217063924U

CN217063924U - Two-frequency-dividing sound box

Info

Publication number: CN217063924U
Application number: CN202220433589.4U
Authority: CN
Inventors: 曾山
Original assignee: Guangzhou Meizhen Electronic Technology Co ltd
Current assignee: Guangzhou Meizhen Electronic Technology Co ltd
Priority date: 2022-03-01
Filing date: 2022-03-01
Publication date: 2022-07-26
Anticipated expiration: 2032-03-01

Abstract

The utility model discloses a two frequency-dividing sound box, including box, loudspeaker and woofer all establish in the box and set up one by one along setting for the direction, loudspeaker and woofer horn mouth between them all lie in same one side of box, and the relative horizontal plane slope of woofer sets up to make woofer's axis and loudspeaker's axis intersect. The utility model discloses a two frequency division audio amplifier sets up through making the relative horizontal plane slope of woofer for woofer and tweeter axis between them is crossing, thereby makes the audio frequency of woofer can fall on the axis of tweeter, does benefit to the reinforcing middle pitch, makes the middle pitch thick and bright and clear, also can reduce audio signal's linear distortion, thereby improves tone quality.

Description

Two-frequency-dividing sound box

Technical Field

The utility model relates to a audio amplifier technical field especially relates to a two frequency division audio amplifier.

Background

A two-division sound box is a sound box that integrates two different types of speakers and is provided with a frequency divider, wherein the speakers are classified into tweeters, woofers, and midrange woofers. The traditional two-frequency-division sound box usually affects the sound reproduction quality due to the linear distortion of audio signals, and therefore, the structure improvement of the existing two-frequency-division sound box is needed.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a two-frequency-division sound box, which can reduce the linear distortion of audio signals, thereby improving the tone quality.

The purpose of the utility model is realized by adopting the following technical scheme:

two frequency-dividing audio amplifier, including box, loudspeaker and woofer, loudspeaker with woofer all establishes in the box and set up one by one along setting for the direction, loudspeaker with woofer horn mouth between them all is located same one side of box, the relative horizontal plane slope of woofer sets up, so that woofer's axis with loudspeaker's axis is crossing.

Furthermore, the inclination angle of the woofer is A, and A is more than or equal to 5 degrees and less than or equal to 10 degrees.

Furthermore, a high horn is connected to the high horn.

Furthermore, the throat diameter of the tweeter is d, and d is 25mm, or d is 36 mm.

Furthermore, a plurality of through clearance holes are formed in the side portion, close to the woofer, of the high-pitch horn.

Furthermore, the box body comprises an installation base body and a cover plate covering the installation base body, an installation cavity is enclosed by the installation base body and the cover plate, the high pitch horn and the low pitch horn are both arranged in the installation cavity, and horn mouths of the high pitch horn and the low pitch horn face the cover plate;

the cover plate is provided with a plurality of first through holes which penetrate through the cover plate and the part, opposite to the woofer, of the cover plate, and the installation cavity is communicated with the outside through the first through holes.

Furthermore, the cover plate comprises a first plate body and a second plate body, the second plate body is arranged on two opposite sides of the first plate body along the set direction, the second plate bodies are connected with the mounting base body along each of two opposite sides of the set direction in a one-to-one correspondence manner, and the horn mouths of the high-pitch horn and the low-pitch horn face the first plate body;

the first through hole is formed in the first plate body;

each second plate body is provided with a plurality of second through holes which penetrate through, and the second through holes are communicated with the mounting cavity and the outside.

Furthermore, grooves are formed in two opposite sides of the mounting base body along the set direction, the parts, connected with the mounting base body, of the second plate bodies are accommodated in the grooves, and the outer side surfaces of the second plate bodies and the outer side surfaces of the two opposite sides of the mounting base body along the set direction are in one-to-one correspondence and are located on the same horizontal plane.

Further, be equipped with first mounting panel and second mounting panel on the installation base member, first mounting panel with the second mounting panel is followed set for the direction and sets up one by one, first mounting panel and vertical parallel, the second mounting panel is relative first mounting panel slope sets up, loudspeaker establishes on the first mounting panel, woofer establishes on the second mounting panel.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses a two frequency division audio amplifier sets up through making the relative horizontal plane slope of woofer for woofer and tweeter axis between them is crossing, thereby makes woofer's audio frequency can fall on tweeter's axis, does benefit to the reinforcing middle pitch, makes the middle pitch thick and bright clear, also can reduce audio signal's linear distortion, thereby improves tone quality.

Drawings

Fig. 1 is a schematic structural view of a two-frequency-division sound box of the present invention;

FIG. 2 is an exploded view of the crossover speaker shown in FIG. 1;

fig. 3 is an exploded view of the two-frequency-division sound box shown in fig. 1.

In the figure: 10. a box body; 11. installing a base body; 111. a groove; 112. a first mounting plate; 113. a second mounting plate; 114. a third mounting plate; 12. a cover plate; 121. a first plate body; 122. a second plate body; 123. a first through hole; 124. a second perforation; 20. a tweeter; 30. a woofer; 40. a horn of high pitch; 41. and (7) avoiding a void.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

Referring to fig. 1 to 3, a two-frequency-division sound box according to a preferred embodiment of the present invention is shown, which includes a box 10, a tweeter 20 and a woofer 30, wherein the tweeter 20 and the woofer 30 are both disposed in the box 10 and are set one by one along a set direction, the mouths of the tweeter 20 and the woofer 30 are both located on the same side of the box 10, and the woofer 30 is disposed in an inclined manner with respect to a horizontal plane, so that the axis of the woofer 30 intersects with the axis of the tweeter 20.

The utility model discloses a two frequency division audio amplifier sets up through making the relative horizontal plane slope of woofer 30 for woofer 30 and tweeter 20 axis between them is crossing, thereby makes woofer 30's audio frequency can fall on tweeter 20's axis, does benefit to the reinforcing mediant, makes the mediant thick and solid and bright clear, also can reduce audio signal's linear distortion, thereby improves tone quality.

In the present embodiment, the angle of inclination of the woofer 30 is a, a is greater than or equal to 5 ° and less than or equal to 10 °, and within the range of the angle of inclination, the intersection point between the audio frequency of the woofer 30 and the audio frequency of the tweeter 20 is at a moderate position of the axis of the tweeter 20, which is beneficial to further reducing the linear distortion of the audio signal, and the sound quality is better.

In the present embodiment, a is 5 °, and at this inclination angle, the position of the intersection point between the audio of the woofer 30 and the audio of the tweeter 20 on the axis of the tweeter 20 is the best, and the sound quality is better. Of course, in other embodiments, a is equal to 8 ° or a is equal to 10 °, which can also make the present two-frequency division sound box have better sound quality.

In the present embodiment, the setting direction is vertical, and the tweeter 20 and the woofer 30 are arranged one by one from top to bottom, so that the vertical space can be fully utilized, and the installation is more convenient. Of course, in other embodiments, the setting direction may be a horizontal direction, and is not limited to this.

In the present embodiment, the axis of the tweeter 20 is parallel to the horizontal plane to facilitate the installation of the tweeter 20.

In this embodiment, tweeter 20 is connected with tweeter horn 40, and tweeter horn 40 sets up one and can improve tweeter 20's sensitivity, makes the sound that tweeter 20 sent bigger, and is more concentrated, and the directionality is better, can widen tweeter 20's low frequency lower limit, reduces linear distortion, and tone quality is better.

In the present embodiment, the throat diameter of the tweeter 20 is d, d is 25mm, or d is 36mm, that is, the tweeter 20 is a small tweeter 20, the structure is compact, and the cost is lower, and the combination of the tweeter 20 and the tweeter horn 40 can improve the low frequency lower limit of the tweeter 20, reduce the linear distortion, and improve the sound quality.

In the present embodiment, a plurality of through holes 41 are disposed on the side of the tweeter horn 40 close to the woofer 30, and the holes 41 are disposed to allow the audio of the woofer 30 to pass through without obstruction, so as to reduce the audio reflection of the woofer 30 and improve the sound quality.

In the present embodiment, the box 10 includes a mounting base 11 and a cover plate 12 covering the mounting base 11, the mounting base 11 and the cover plate 12 enclose a mounting cavity, the tweeter 20 and the woofer 30 are both disposed in the mounting cavity, and the mouths of both the tweeter 20 and the woofer 30 face the cover plate 12; the cover 12 and the tweeter 20 are provided with a plurality of first through holes 123, and the cover 12 and the woofer 30 are provided with a plurality of first through holes 123. The structure has the advantages that the part, opposite to the horn mouth, of the cover plate 12 and the tweeter 20 is of a hole-free structure, the structure can reduce the audio standing wave of the tweeter 20 to avoid reverberation, and can widen the low-frequency lower limit of the tweeter 20 to ensure that the sensitivity of the tweeter 20 is higher, the linear distortion is reduced, and the tone quality is better; the first through hole 123 is formed in the portion of the cover plate 12 opposite to the woofer 30, and the audio of the woofer 30 can pass through the first through hole 123 without obstruction, so that the audio reflection of the woofer 30 can be reduced, and the sound quality is better.

In the present embodiment, the cover plate 12 includes a first plate 121 and a second plate 122, the second plate 122 is disposed on two opposite sides of the first plate 121 along the set direction, the second plates 122 are connected to two opposite sides of the mounting base 11 along the set direction in a one-to-one correspondence manner, and the mouths of the tweeter 20 and the woofer 30 face the first plate 121; the first through hole 123 is disposed on the first plate 121; each second plate body 122 is provided with a plurality of second through holes 124 which penetrate through, each second through hole 124 communicates the mounting cavity with the outside, and the arrangement of the second through holes 124 can reduce the audio standing waves of the tweeter 20 and the woofer 30, thereby avoiding reverberation and improving the sound quality.

Referring to fig. 3, in the present embodiment, the two opposite sides of the mounting base 11 along the set direction are provided with the grooves 111, the portions of the second plate 122 connected to the mounting base 11 are received in the grooves 111 in a one-to-one correspondence, and the outer side surfaces of the second plate 122 and the outer side surfaces of the two opposite sides of the mounting base 11 along the set direction are located on the same horizontal plane in a one-to-one correspondence, so that the outer side surfaces of the two opposite sides of the mounting base 11 along the set direction are prevented from being uneven to generate sharp corners, and the safety is better, and the appearance is more beautiful.

Referring to fig. 3, in the present embodiment, a first mounting plate 112 and a second mounting plate 113 are disposed on the mounting base 11, the first mounting plate 112 and the second mounting plate 113 are disposed one by one along a set direction, the first mounting plate 112 is vertically parallel to the second mounting plate 113, the second mounting plate 113 is disposed in an inclined manner with respect to the first mounting plate 112, the tweeter 20 is disposed on the first mounting plate 112, and the woofer 30 is disposed on the second mounting plate 113, so as to facilitate convenient mounting of the tweeter 20 and the woofer 30.

Specifically, in the present embodiment, the inclination angle of the second mounting plate 113 with respect to the first mounting plate 112 is equal to the inclination angle a.

In this embodiment, the mounting base 11 is further provided with a third mounting plate 114, the third mounting plate 114 is parallel to and spaced apart from the first mounting plate 112, and the tweeter horn 40 is connected to the third mounting plate 114 so that the tweeter horn 40 can be securely mounted in the cabinet 10.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. Two frequency-dividing loudspeaker, its characterized in that, including box, loudspeaker and woofer, loudspeaker with woofer all establishes in the box and set up one by one along setting for the direction, loudspeaker with woofer horn mouth between them all is located same one side of box, the relative horizontal plane slope of woofer sets up, so that woofer's axis with loudspeaker's axis is crossing.

2. A two-frequency-dividing loudspeaker as claimed in claim 1, wherein the woofer has an angle of inclination A, A being 5 ° ≦ A ≦ 10 °.

3. The two-frequency division sound box of claim 1, wherein a tweeter horn is connected to the tweeter.

4. A halftoning box according to claim 3, wherein the tweeter has a throat diameter d, d-25 mm, or d-36 mm.

5. The two-frequency-division sound box according to claim 3, wherein a plurality of through holes are provided on the side of the tweeter horn adjacent to the woofer.

6. The two-frequency division sound box of claim 1, wherein the box body comprises a mounting base and a cover plate covering the mounting base, the mounting base and the cover plate enclosing a mounting cavity, the tweeter and the woofer being disposed within the mounting cavity, the mouths of both the tweeter and the woofer facing the cover plate;

the part of the cover plate opposite to the tweeter is of a non-porous structure;

7. The two-frequency-division sound box according to claim 6, wherein the cover plate comprises a first plate body and a second plate body, the second plate body is disposed on two opposite sides of the first plate body along the setting direction, each of the second plate bodies is connected with the mounting base body along each of two opposite sides of the setting direction in a one-to-one correspondence, and the horn mouths of both the tweeter and the woofer face the first plate body;

the first through hole is formed in the first plate body;

8. The two-frequency-division sound box according to claim 7, wherein the mounting base is provided with grooves on opposite sides in the setting direction, the connecting portion of each second plate and the mounting base is received in each groove in a one-to-one correspondence, and the outer side surface of each second plate and the outer side surface of each mounting base on opposite sides in the setting direction are in a same horizontal plane in a one-to-one correspondence.

9. The crossover speaker of claim 6, wherein the mounting base has a first mounting plate and a second mounting plate disposed thereon, the first mounting plate and the second mounting plate being disposed one by one along the predetermined direction, the first mounting plate being parallel to the vertical direction, the second mounting plate being disposed obliquely with respect to the first mounting plate, the tweeter being disposed on the first mounting plate, and the woofer being disposed on the second mounting plate.

10. The two-frequency division sound box of claim 1, wherein an axis of the tweeter is parallel to a horizontal plane.