CN109547900B

CN109547900B - Horn

Info

Publication number: CN109547900B
Application number: CN201811397876.9A
Authority: CN
Inventors: 卓恩峰; 顾春挺
Original assignee: Speaker Electronic Jiashan Co Ltd
Current assignee: Speaker Electronic Jiashan Co Ltd
Priority date: 2018-11-22
Filing date: 2018-11-22
Publication date: 2020-10-30
Anticipated expiration: 2038-11-22
Also published as: CN109547900A

Abstract

A horn includes a substrate, and a high pitch driver. Each of the high pitch drivers includes a sound emitting portion and a sound diffusing portion. Each of the loud speaker portions of the treble drivers includes two longitudinal sectional contour lines. And the included angle between the two longitudinal section contour lines and the sound wave main shaft is an acute angle. And the circumscribed circles of the connecting lines of the two longitudinal section contour lines of any sound amplifying part are the same circle. The included angle between the connecting line between the circle center of the circle and the center of the substrate and the substrate is an acute angle. Each high pitch driver's public address portion includes two and uses the sound wave main axis that the portion of giving out a sound sends is the cross section contour line of symmetry. Each cross-sectional contour line comprises a straight line segment, an arc segment and an arc extension segment. And an included angle between the straight line section and the sound wave main shaft is an acute angle. The diameter of the circle where the arc-shaped section is located is smaller than that of the circle where the arc-shaped extension section is located. The horn is beneficial to improving the sound quality.

Description

Horn

Technical Field

The invention belongs to the technical field of high-pitch driver equipment, and particularly relates to a horn.

Background

A treble driver, which is a terminal of the overall sound system and functions to convert audio power into corresponding sound energy and radiate the sound energy into space, is an extremely important component of the sound system because it is responsible for a key task of converting electrical signals into acoustic signals for human ear listening. The high pitch driver is to directly interact with human hearing, which is very sensitive and has strong discrimination of the timbre of complex sounds. The arrangement of the sound field is therefore of great influence on the hearing enjoyment of people.

As technology develops, more and more users demand high pitch drivers with a small volume, but as the volume becomes smaller and smaller, assembly thereof becomes more and more difficult. It is well known that the assembly of the treble driver is also one of the important factors affecting the sound quality and quality of the treble driver.

Disclosure of Invention

In view of the above, the present invention provides a horn and a combined high pitch driver having the horn to solve the above problems.

A horn includes a base plate, and a plurality of high pitch drivers disposed on the base plate. Each high pitch driver comprises a sound outlet part and a sound expansion part arranged on the sound outlet part. The sound amplifying part of each high pitch driver comprises two longitudinal section contour lines which take the main axis of the sound wave emitted by the sound emitting part as a symmetry axis on the section along the arrangement direction of the high pitch drivers. And the included angle between the two longitudinal section contour lines and the sound wave main shaft is an acute angle. The circumscribed circle of the connecting line of the two longitudinal sectional contour lines of any one of the diffusers on the cross section along the arrangement direction of the plurality of high pitch drivers is the same circle. An included angle between a connecting line between the center of the circle and the center of the substrate and the substrate on a section along the arrangement direction of the plurality of high pitch drivers and the substrate is an acute angle. The sound amplifying part of each high pitch driver comprises two cross-section contour lines which take the sound wave main shaft emitted by the sound emitting part as a symmetry axis on the section which is along the sound wave main shaft emitted by the high pitch driver and is vertical to the arrangement direction of the high pitch drivers. Each cross section contour line comprises a straight line section connected with the sound outlet part, an arc section connected with the straight line section, and an arc extending section connected with the arc section. And an included angle between the straight line section and the sound wave main shaft is an acute angle. The diameter of the circle where the arc-shaped section is located is smaller than that of the circle where the arc-shaped extension section is located.

Further, when the horn is installed, the substrate is perpendicular to the horizontal plane and the substrate is a plane.

Further, the base plate is a plane, and the base plate is used for mounting the horn.

Further, the arrangement direction of the plurality of high pitch drivers is perpendicular to the horizontal plane when the horn is installed.

Further, an angle between main axes of sound waves emitted from any two adjacent sound emitting portions on a cross section along the arrangement direction of the plurality of high-pitched drivers is an acute angle.

Further, the included angles between the main axes of the sound waves emitted by any two adjacent sound emitting portions on the section along the arrangement direction of the plurality of high-pitch drivers are equal.

Furthermore, the value of the acute angle between the straight line segment and the main axis of the sound wave is smaller than the value of the acute angle between the connecting line between the center of the circumscribed circle and the center of the substrate and the substrate.

Furthermore, an included angle between a connecting line of a circle where the arc-shaped section is located and a circle center of a circle where the arc-shaped extension section is located and a main axis of sound waves emitted by the sound emitting part is an acute angle, and the circle where the arc-shaped section is located is tangent to the circle where the arc-shaped extension section is located.

Furthermore, the sound output surface of each sound output part is a circular surface.

Compared with the prior art, the horn provided by the invention has the advantages that the sound amplifying part comprises two longitudinal section contour lines which take the main axis of the sound wave emitted by the sound emitting part as a symmetry axis on the section along the arrangement direction of the high-pitch drivers. The included angle between the two longitudinal section contour lines and the sound wave main shaft is an acute angle, and the circumscribed circles of the connecting lines of the two longitudinal section contour lines of any one sound amplifying part are the same circle. The included angle between the connecting line between the center of the circle and the center of the base plate and the base plate on the section along the arrangement direction of the high-pitch drivers is an acute angle, so that the sound output of the high-pitch drivers can be well coupled at the sound amplifying opening, and meanwhile, the vertical pointing angle can be increased. The sound amplifying part of each high pitch driver comprises two cross-section contour lines which take the sound wave main shaft emitted by the sound emitting part as a symmetry axis on the section which is along the sound wave main shaft emitted by the high pitch driver and is vertical to the arrangement direction of the high pitch drivers. Each cross section contour line comprises a straight line section connected with the sound outlet part, an arc section connected with the straight line section, and an arc extending section connected with the arc section. And an included angle between the straight line section and the sound wave main shaft is an acute angle. The diameter of the circle where the arc-shaped section is located is smaller than that of the circle where the arc-shaped extension section is located, so that after sound of each high-pitch driver is output and then amplified, a horizontal pointing angle which is matched with the vertical pointing angle and coupled with one or more high-pitch drivers is obtained.

Drawings

Fig. 1 is a schematic structural diagram of a horn according to the present invention.

FIG. 2 is a schematic cross-sectional view of the horn of FIG. 1 taken along line A-A.

FIG. 3 is a schematic cross-sectional view of the horn of FIG. 1 taken along line B-B.

Detailed Description

Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.

As shown in fig. 1 to fig. 2, which are schematic structural views of a horn according to the present invention. The horn comprises a base plate 10 and a plurality of treble drivers 20 disposed on the base plate 10. It is contemplated that the horn may also include other functional modules, such as assembly modules, electrical modules, mounting modules, etc., which are known to those skilled in the art and will not be described in detail herein.

The base plate 10 is used for assembling or mounting the plurality of treble drivers 20, which should be one plane. When mounted, the base plate 10 should be perpendicular to the horizontal plane in order to design the structure and parameters of the plurality of treble drivers 20. The substrate 10 may be integrally formed with a housing of the tweeter driver 20, or a plurality of tweeter drivers 20 may be assembled to the substrate 10. In the present embodiment, the substrate 10 and the housing of the high-pitch driver 20 are integrally formed, so as to reduce the assembly process and reduce the cost.

The treble drivers 20 may be plural, and are determined according to actual requirements, such as volume, sound effect, etc., and in this embodiment, the treble drivers 20 are 4. The four treble drivers 20 have the same structure. Each of the high pitch drivers 20 includes a sound emitting portion 21, and a sound diffusing portion 22 provided on the sound emitting portion 21. The sound output portion 21 is a device capable of converting an audio signal into sound, and includes a speaker, an inverter, a resonant cavity, a frequency divider, etc., which are well known to those skilled in the art and will not be described herein. As is well known, the sound emitted from the sound emitting portion 21 is a waveform having a main axis of sound wave. The principal axis of the sound wave is the reference for sound design. An angle between major axes of sound waves emitted from any two adjacent sound emitting portions 21 in a cross section along the arrangement direction of the plurality of high pitch drivers 20 may be an acute angle, and an angle between major axes of sound waves emitted from any two adjacent sound emitting portions 21 may be equal. In the present embodiment, the sound emitting surface of each sound emitting portion 21 is a circular surface. As shown in fig. 2, the sound amplification unit 22 of each of the tweeter drivers 20 includes two longitudinal sectional contour lines 221 having a main axis of sound wave emitted from the sound emission unit 21 as a symmetry axis in a cross section along the arrangement direction of the plurality of tweeter drivers 20. The angle between the two longitudinal sectional contour lines 221 of each of the tweeter drivers 20 and the main axis of the sound wave may be an acute angle. The two longitudinal sectional outlines 221 are straight lines. The circumscribed circle of the connecting line of the two longitudinal sectional contour lines 221 of any one of the sound diffusing parts 22 in the cross section along the arrangement direction of the plurality of high pitch drivers 20 is the same circle, so that the plurality of high pitch drivers 20 are smoothly curved in the arrangement direction of the plurality of high pitch drivers 20. An angle formed between a line connecting a center of the circumscribed circle and a center of the base plate 10 and the base plate 10 in a cross section along the arrangement direction of the plurality of high pitch drivers 20 is an acute angle, so that a sound emitting direction of the horn is inclined to be more concentrated toward a listener.

As shown in fig. 3, the sound amplification part 22 of each of the tweeter drivers 20 includes two cross-sectional contours 222 having the main axis of the sound wave emitted from the sound emission part 21 as a symmetry axis in a cross-section along the main axis of the sound wave emitted from the tweeter driver 20 and perpendicular to the arrangement direction of the plurality of tweeter drivers 20. Each of the cross-sectional contours 222 includes a straight line segment 223 connected to the sound emitting portion 21, an arc segment 224 connected to the straight line segment 223, and an arc extension segment 225 connected to the arc segment 224. The included angle between the straight line segment 223 and the sound wave main shaft is an acute angle or parallel, and the purpose of sending out sound is achieved. The acute angle between the straight line segment 223 and the main axis of the sound wave is smaller than the acute angle between the connecting line between the center of the circumscribed circle and the center of the substrate 10 and the substrate 10, so that the sound emitting of the sound amplifying part 22 becomes narrow and more concentrated, and meanwhile, when the sound emitting surface of the sound emitting part 21 is a circular surface, the sound wave is extruded, and the sound wave is enhanced.

The diameter of the circle where the arc-shaped section 224 is located is smaller than the diameter of the circle where the arc-shaped extension section 225 is located, preferably, the circle where the arc-shaped section 224 is located is tangent to the circle where the arc-shaped extension section 225 is located, and the central angle of the arc-shaped section 224 is 90 degrees, so that the sound diffusing part 22 expands rapidly and smoothly at the outlet, and reflection and diffraction interference caused by a sound diffuser is effectively avoided. An included angle between a connecting line of a circle where the arc-shaped section 224 is located and a circle center of a circle where the arc-shaped extension section 225 is located and a main axis of sound waves emitted by the sound emitting part 21 is an acute angle, so that a sound outlet of the sound amplifying part 22 is suddenly enlarged to form a low-reflection and constant-direction sound expanding port.

When the horn is installed, the arrangement direction of the plurality of tweeter drivers 20 should be perpendicular to the horizontal plane, i.e., the substrate 10 is also perpendicular to the horizontal plane. Meanwhile, the included angle between the horizontal plane and the connecting line between the center of the circumscribed circle of the connecting lines of the two longitudinal section contour lines 221 of the sound amplifying part 22 and the midpoint of the substrate 10 should be an acute angle, so that the sound outlet surface of the horn is inclined and faces the audience, and the purposes of being beneficial to installation and facing the audience are achieved.

Compared with the prior art, the horn of the present invention has the advantages that the sound diffusing part 22 comprises two longitudinal section contour lines which take the main axis of the sound wave emitted by the sound emitting part 21 as a symmetry axis on the section along the arrangement direction of the plurality of high-pitch drivers 20. The included angle between the two longitudinal section contour lines and the sound wave main shaft is an acute angle, and the circumscribed circles of the connecting lines of the two longitudinal section contour lines of any one of the sound amplifying parts 22 are the same circle. The angle between the line connecting the center of the circle and the center of the base plate 10 and the base plate on the cross section along the arrangement direction of the plurality of high pitch drivers 10 is an acute angle, so that the sound output of the plurality of high pitch drivers 10 can be well coupled at the sound amplifying opening, and the vertical pointing angle can be increased. The sound amplification part 22 of each of the treble drivers 20 includes two cross-sectional contours having a main axis of sound waves emitted from the sound emission part 21 as a symmetry axis in a cross-section along the main axis of sound waves emitted from the treble driver 20 and perpendicular to the arrangement direction of the plurality of treble drivers 20. Each of the cross-sectional contours includes a straight segment 223 connected to the sound emitting portion, an arc segment 224 connected to the straight segment, and an arc extension segment 225 connected to the arc segment. The included angle between the straight line segment 223 and the main axis of the sound wave is an acute angle. The diameter of the circle in which the arc-shaped section 224 is located is smaller than the diameter of the circle in which the arc-shaped extension section 225 is located, so that after sound of each tweeter driver 20 is output and then amplified, a horizontal pointing angle matched with the vertical pointing angle is obtained after one or more tweeter drivers 20 are coupled.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, and any modifications, equivalents or improvements that are within the spirit of the present invention are intended to be covered by the following claims.

Claims

1. A horn, characterized by: the bugle includes a base plate (10), and a plurality of setting is in treble driver (20) on base plate (10), each treble driver (20) include one and play sound portion (21), and one sets up expand sound portion (22) on play sound portion (21), each on the cross-section on the array orientation along this a plurality of treble drivers (20) the public address portion (22) of treble driver (20) include two with the sound wave main shaft that goes out sound portion (21) and send is longitudinal section contour line (221) of symmetry axis, two longitudinal section contour lines (221) with contained angle between the sound wave main shaft is the acute angle, two of any one expand sound portion (22) on the cross-section on the array orientation along this a plurality of treble drivers (20) the circumscribed circle of line of longitudinal section contour line (221) is same circle, the centre of a circle of this circle on the cross-section on the array orientation along this a plurality of treble drivers (20) with base plate (10) ) An included angle between a connecting line between centers of the two line drivers and the substrate (10) is an acute angle, a sound amplifying part (22) of each high pitch driver (20) on a section which is along a sound wave main shaft emitted by the high pitch driver (20) and is vertical to the arrangement direction of the high pitch drivers (20) comprises two cross section contour lines (222) which take the sound wave main shaft emitted by the sound emitting part (21) as a symmetry axis, each cross section contour line (222) comprises a straight line section (223) connected with the sound emitting part (21) and an arc section (224) connected with the straight line section (223), and an arc extension section (225) connected with the arc section (224), wherein the included angle between the straight section (223) and the main axis of the sound wave is an acute angle, the diameter of the circle on which the arc-shaped section (224) is located is smaller than the diameter of the circle on which the arc-shaped extension section (225) is located.

2. The horn of claim 1, wherein: when the horn is installed, the substrate (10) is perpendicular to a horizontal plane, and the substrate (10) is a plane.

3. The horn of claim 2, wherein: the arrangement direction of the plurality of treble drivers (10) is perpendicular to the horizontal plane when the horn is installed.

4. The horn of claim 2, wherein: and two longitudinal section contour lines are straight lines.

5. The horn of claim 1, wherein: the angle between the major axes of the sound waves emitted from any two adjacent sound emitting portions (21) in the cross section along the arrangement direction of the plurality of high-pitched drivers (20) is an acute angle.

6. The horn of claim 5, wherein: the angles between the major axes of the sound waves emitted from any two adjacent sound emitting portions (21) are equal in the cross section along the arrangement direction of the plurality of high-pitched drivers (20).

7. The horn of claim 1, wherein: the value that the included angle between the straight line segment (10) and the sound wave main shaft is an acute angle is smaller than the value that the included angle between the connecting line between the circle center of the circumscribed circle and the center of the substrate (10) and the substrate (10) is an acute angle.

8. The horn of claim 1, wherein: an included angle between a connecting line of a circle where the arc-shaped section (224) is located and the circle center of a circle where the arc-shaped extension section (225) is located and a main shaft of sound waves emitted by the sound emitting part (21) is an acute angle, and the circle where the arc-shaped section (224) is located is tangent to the circle where the arc-shaped extension section (225) is located.

9. The horn of claim 1, wherein: the sound wave major axes emitted from any two adjacent sound emitting portions (21) are parallel to each other in a cross section along the arrangement direction of the plurality of high-pitched drivers (20).

10. The horn of claim 1, wherein: the sound emitting surface of each sound emitting part (21) is a circular surface.