Highway high-directivity horn horn

Abstract

The utility model relates to a highway strong directivity horn horn. A rear seat is connected with a large cylinder forwards and packaged backwards through a rear cover, the front inner wall of the rear seat is connected with U iron, the U iron backwards supports an equalizer through magnetic steel and a pole plate in sequence, the equalizer is internally connected with a phase plug in a penetrating mode, a sound wave inlet of the equalizer faces backwards, and a voice diaphragm is arranged on the rear side of the equalizer. The side edge of the voice diaphragm is connected between the rear cover and the rear seat in a pressed mode, a sound wave outlet of the equalizer is communicated into the large cylinder through a sound wave channel in the rear seat, a middle cylinder is arranged in the large cylinder and supported on the rear bottom of the large cylinder in a clearance mode, a sound dividing head coaxial with the sound wave channel protrudes out of the rear bottom of the middle cylinder, and a front sealing plate covers a front opening of the large cylinder. The front sealing plate is provided with a plurality of sound outlet holes. The sound film, the equalizer and the phase plug are adopted to send out sound waves outwards by the sound dividing head through the gap between the middle cylinder and the large cylinder through the sound wave channel, diffused point sound sources are converted into plane waves on the front sealing plate, linear sound waves are sent out through the sound outlet holes in the pointing area, and the sound box is high in directivity and suitable for occasions such as roads.

Description

Technical Field

[0001] The utility model relates to a speaker, in particular to a highway strong directivity horn speaker. Background Art

[0002] With the rapid development of modern transportation, there are dense vehicles and people walking on the road. For traditional horn speakers, the horn is a diffuse sound source with poor directivity. The role of targeted warnings is not obvious and cannot be adapted to the use of directional warnings on modern roads. Summary of the invention

[0003] The utility model provides a highway strong directivity horn speaker which has a simple and compact structure and strong directivity.

[0004] The technical scheme adopted by the utility model is: a highway strong directivity horn speaker, comprising a large tube, a rear seat, a U iron, a magnetic steel, a pole plate and a rear cover, characterized in that: the rear seat is connected to the large tube toward the front and is sealed toward the rear through the rear cover, the U iron is connected to the front inner wall of the rear seat, the U iron supports the equalizer toward the rear through the magnetic steel and the pole plate in sequence, a phase plug is inserted in the equalizer, the sound wave inlet of the equalizer faces backward, a sound film is arranged on the rear side of the equalizer, the side edge of the sound film is crimped between the rear cover and the rear seat, the sound wave outlet of the equalizer is connected to the large tube through the sound wave channel on the rear seat, a middle tube is arranged in the large tube and gap-supported on the rear bottom of the large tube, a sound dividing head coaxial with the sound wave channel is protruded on the rear bottom of the middle tube, the front cover of the large tube is equipped with a front sealing plate, and a plurality of sound outlet holes are opened on the front sealing plate.

[0005] The cross section of the middle cylinder corresponding to the sound wave channel in the axial direction is larger than the cross section of the sound wave channel connected to the mouth of the large cylinder.

[0006] The sound dividing head is in a pointed cone shape.

[0007] The multiple sound outlet holes are arranged in an array in the directional area gathered on the front cover plate.

[0008] The directional area axially corresponds to between the middle tube and the large tube.

[0009] The utility model adopts a sound film, an equalizer, and a phase plug to send sound waves outward from the sound wave channel through the gap between the middle tube and the large tube from the sound divider, converts the diffused point sound source into a plane wave on the front sealing plate, and sends out straight sound waves through the sound outlet holes in the directional area. It has strong directivity and is suitable for use in occasions such as roads. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0011] Figure 2 for Figure 1 Schematic diagram of the internal structure.

[0012] In the figure: back cover 1, rear seat 2, large cylinder 3, front sealing plate 4, sound outlet 5, sound wave channel 6, U iron 7, magnetic steel 8, pole plate 9, sound membrane 10, equalizer 11, phase plug 12, middle cylinder 13, crossover head 14. DETAILED DESCRIPTION

[0013] The following is a further description with reference to the accompanying drawings.

[0014] Figure 1 , 2 As shown, a highway strong directivity horn speaker includes a rear cover 1, a rear seat 2, a large tube 3, a front sealing plate 4, a U iron 7, a magnetic steel 8, a pole plate 9, a sound membrane 10, an equalizer 11, a phase plug 12, and a middle tube 13.

[0015] The rear seat 1 is connected to the large cylinder 3 in the front and is sealed by the rear cover 1 in the rear. The U iron 7 is supported on the front inner wall of the rear seat 1. The U iron 7 supports the equalizer 11 in the rear through the magnetic steel 8 and the pole plate 9 in sequence. The phase plug 12 is inserted in the equalizer 11. The sound wave inlet of the equalizer 11 faces backward. A sound membrane 10 is arranged on the rear side of the equalizer 11. The side of the sound membrane 10 is crimped between the rear cover 1 and the rear seat 2. The sound wave outlet of the equalizer 11 is connected to the large cylinder 3 through the sound wave channel 6 on the rear seat 1. The middle cylinder 13 is arranged in the large cylinder 3 and the gap is supported on the rear bottom of the large cylinder. A sound dividing head 14 coaxial with the sound wave channel is protruded on the rear bottom of the middle cylinder 13. The front cover of the large cylinder 3 is equipped with a front sealing plate 4. A plurality of sound outlet holes 5 are opened on the front sealing plate. The plurality of sound outlet holes are arranged in an array in the pointing area gathered on the front sealing plate.

[0016] In this embodiment, the cross-section of the middle cylinder corresponding to the sound wave channel in the axial direction is larger than the cross-section of the sound wave channel connected to the mouth of the large cylinder.

[0017] In this embodiment, the sound dividing head is in a pointed cone shape.

[0018] In this embodiment, the pointing area corresponds axially between the middle tube and the large tube.

Claims

1. A road horn with strong directivity, comprising a large tube, a rear seat, a U iron, a magnetic steel, a pole plate and a rear cover, characterized in that: The rear seat is connected to the large cylinder in front and is sealed by the rear cover in the rear. The front inner wall of the rear seat is connected with U-iron, which supports the equalizer in the rear through magnetic steel and pole plates in sequence. The phase plug is inserted in the equalizer. The sound wave inlet of the equalizer faces rearward. A sound membrane is arranged on the rear side of the equalizer. The side of the sound membrane is crimped between the rear cover and the rear seat. The sound wave outlet of the equalizer is connected to the large cylinder through the sound wave channel on the rear seat. A middle cylinder is arranged in the large cylinder and gap-supported on the rear bottom of the large cylinder. A sound divider coaxial with the sound wave channel protrudes from the rear bottom of the middle cylinder. The front cover of the large cylinder is equipped with a front sealing plate, and a plurality of sound outlet holes are opened on the front sealing plate.

2. The highway horn speaker with strong directivity according to claim 1 is characterized by: The cross section of the middle cylinder corresponding to the sound wave channel in the axial direction is larger than the cross section of the sound wave channel connected to the mouth of the large cylinder.

3. The highway horn speaker with strong directivity according to claim 1 is characterized by: The sound dividing head is in a pointed cone shape.

4. The highway high-directivity horn speaker according to claim 1 is characterized by: The multiple sound outlet holes are arranged in an array in the directional area gathered on the front cover plate.

5. The highway high-directivity horn speaker according to claim 4 is characterized by: The directional area axially corresponds to between the middle tube and the large tube.

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