Full acoustic horn and method for producing same

Abstract

The invention relates to speaker systems for high-quality sound reproduction. It provides a simplified structure of the device, improves the device manufacturability and durability. The speaker system includes the driver, the horn for reproducing low-frequency range sound (rear horn), and the horn for reproducing high-frequency and mid-frequency range sound (front horn); both horns are made in the form of a single enclosure with the capability of mounting the driver in this enclosure, while the enclosure is made of two solid parts symmetrical with respect to the plane of the central vertical section, each part represents a half of the overall profile of the front and rear horns, with no joints at the junction between the front and the rear horns.

Claims

1. A speaker system that includes a driver, a rear horn located on the back side of the driver for reproducing low-frequency range sound in the form of a contour flaring according to a specified calculation, consisting of an inlet opening (throat), an aperture and an outlet opening (mouth), as well as a front horn located on the front side of the driver for reproducing high-frequency and mid-frequency range sound, characterized in that both the front and rear horns of the system are made in the form of a single enclosure with a capability of mounting the driver in this enclosure, wherein the enclosure is made of two solid parts symmetrical relative to the plane of the central vertical section, each of the parts represents a half of an overall profile of the front and rear horns, with no joints at the junction between the front and the rear horns.

2. Speaker system defined in claim 1, characterized in that a special seat for mounting the driver is made in the enclosure.

3. Speaker system defined in claim 2, characterized in that the seat for mounting the driver is made on a side of the front horn.

4. Speaker system defined in claim 2, characterized in that the seat for mounting the driver is located in the throat of the front horn.

5. Speaker system defined in claim 4, characterized in that it is additionally equipped with a compensating element that restores a desired profile of the front horn in the area of its throat, where the desired profile formed by the device enclosure is broken by the driver mounting seat.

6. Speaker system defined in claim 5, characterized in that the compensating element is made in the form of a ring having a three-sided shape in section, formed by two straight sides connected at right angle and one curvilinear side calculated in accordance with the desired profile of the front horn.

7. Speaker system defined in claim 2, characterized in that the driver is installed in the area between the throat of the front horn and the throat of the rear horn so that a diaphragm of the driver faces the front horn and the back side of the driver faces the rear horn.

8. Speaker system defined in claim 7, characterized in that it is additionally equipped with a compensating element that restores a desired profile of the front horn in the area of its throat, where the desired profile formed by the device enclosure is broken by the driver mounting seat.

9. Speaker system defined in claim 8, characterized in that the compensating element is made in the form of a ring having a three-sided shape in section, formed by two straight sides connected at right angle and one curvilinear side calculated in accordance with the desired profile of the front horn.

10. Speaker system defined in claim 1, characterized in that in order to avoid penetration of high and midrange frequency sound waves through the rear horn, at least part of the inner surface of the rear horn is damped with sound-absorbing material.

11. Speaker system defined in claim 1, characterized in that the profiles of the front and rear horns are made with a contour having a shape of exponential and/or tractrix curve.

12. Acoustic horn that includes a driver consisting of at least a diaphragm (membrane), a diaphragm suspension and a driver basket, and an enclosure in the form of a contour flaring according to a specified calculation, consisting of an inlet opening (throat), an aperture and an outlet opening (mouth), characterized in that the basket of the driver is installed in an area of the throat in a special seat formed by a protrusion on the inner surface of the horn enclosure, while a compensating element is installed over the driver basket, which restores a desired profile of the horn in its throat area, where the desired profile formed by the enclosure is broken by a protrusion serving as a driver mounting seat.

13. Acoustic horn defined in claim 12, characterized in that the compensating element is made in the form of a ring having a three-sided shape in section, formed by two straight sides connected at right angle and one curvilinear side calculated in accordance with the desired profile of the horn.

14. Method of manufacturing a speaker system which includes creating a graphic model of an enclosure of the speaker system, dividing the model into parts, manufacturing parts of the enclosure and connecting them in a known manner, as well as fixing a driver in the enclosure, characterized in that the graphic model of the speaker system enclosure includes both front and rear horns presented in a single common enclosure (full horn), and the model is divided into two parts (halves) symmetrical with respect to the plane of the central vertical section.

15. Method of manufacturing the speaker system defined in claim 14, characterized in that the two halves of the enclosure are manufactured from a hard, minimum resonant material.

16. Method of manufacturing the speaker system defined in claim 14, characterized in that the graphic model of the speaker system enclosure includes a seat for the driver, and after connecting the two halves of the enclosure to each other, a basket of the driver is installed to the seat made in the enclosure on a side of the front horn.

17. Method of manufacturing the speaker system defined in claim 16, characterized in that the seat for the driver is made in the area of the front horn throat in the form of a protrusion on the inner surface of the enclosure.

18. Method of manufacturing the speaker system defined in claim 17, characterized in that the compensating element is installed on top of the driver basket on a side of the front horn, this compensating element restores a desired profile of the front horn in its throat area, where the desired profile formed by the device enclosure is broken by the driver mounting seat.

19. Method of manufacturing the speaker system defined in claim 18, characterized in that the compensating element is made in the form of a ring having a three-sided shape in section, formed by two straight sides connected at right angle and one curvilinear side calculated in accordance with the desired profile of the front horn.

20. Speaker system defined in claim 2, characterized in that in order to avoid penetration of high and midrange frequency sound waves through the rear horn, at least part of the inner surface of the rear horn is damped with sound-absorbing material.

21. Speaker system defined in claim 2, characterized in that the profiles of the front and rear horns are made with a contour having a shape of exponential and/or tractrix curve.

Description

DESCRIPTION OF PREFERRED EMBODIMENTS OF THE INVENTION

[0049] The speaker system includes the driver 1, and the horn 3 located on the back side 2 of the driver 1 for reproducing low-frequency range sound (rear horn 3) in the form of a contour flaring according to the specified calculation, consisting of an inlet opening (throat) 4, aperture 5 and outlet opening (mouth) 6. The speaker system additionally includes a horn 7 to amplify sound in high-frequency and mid-frequency range (front horn 7), both horns 3 and 7 are made in the form of a single enclosure 8 with the capability of mounting the driver 1 in this enclosure 8 in the seat 9 provided for this.

[0050] Seat 9 for mounting the driver 1 is made on the side of the front horn 7, it is located directly in the throat 10 of the front horn 7, while the driver 1 is installed in the area between the throat 10 of the front horn 7 and the throat 4 of the rear horn 3, so that the diaphragm 11 of the driver 1 faces the front horn, and the back side 2 faces the rear horn 3.

[0051] The enlarged drawing of the speaker system unitan acoustic horn (front horn)is shown in FIG. 5.

[0052] The acoustic horn includes the driver 1 consisting of at least the diaphragm (membrane) 11, the suspension 12 of the diaphragm 11 and the basket 13 of the driver 1, and the enclosure 8 itselfthe horn. Basket 13 of the driver 1 is installed in the area of the horn throat 10 in a special seat 9 formed by a protrusion on the inner surface of the horn enclosure 8.

[0053] To improve the quality of sound transmission and protect the sound against distortions, the device is equipped with a compensating element 14 that restores the desired profile of the front horn 7 in the area of its throat 10, where the above said profile formed by the device enclosure 8 is broken by a protrusion serving as a seat 9 for mounting the driver 1. The compensating element 14 is made in the form of a ring having a three-sided shape in section, formed by two straight sides connected at right angle and one curvilinear side 15 calculated in accordance with the selected profile of the front horn 7. Compensating ring 14 is installed end-to-end with the perimeter of the throat 10 of the front horn 7 on top of the basket 13 of the driver 1, installed on the seat 9 for mounting the driver 1 in the device enclosure 8.

[0054] The device operates as follows.

[0055] The sound from the driver 1 enters simultaneously the front horn 7 and the rear horn 3. At the same time, sounds of high and midrange frequencies are transmitted from the diaphragm 11 of the driver 1 through the front horn 7, the compensating ring 14 aligns the profile of the front horn 7 in the area of the throat 10, which ensures sound transmission at high and midrange frequencies with virtually no distortions. Low-frequency sounds are transmitted from the back side 2 of the driver 1 through the rear horn 3, forming a high-quality bass sound at the output.