CN208479928U

CN208479928U - Horn

Info

Publication number: CN208479928U
Application number: CN201820137687.7U
Authority: CN
Inventors: 秦鹏; 徐梅伶
Original assignee: AAC Optoelectronic Changzhou Co Ltd
Current assignee: AAC Optoelectronic Changzhou Co Ltd
Priority date: 2018-01-26
Filing date: 2018-01-26
Publication date: 2019-02-05
Anticipated expiration: 2028-01-26

Abstract

The utility model provides a kind of horn, and the horn includes cylinder, and horn mouth and aditus laryngis positioned at the cylinder both ends；The cylinder includes first part and the second part between the first part and the aditus laryngis, the inside of the first part is formed with round platform top facing towards the first round table-like space of the aditus laryngis, the inside of the second part is formed with round platform top facing towards the second round table-like space of the aditus laryngis, wherein, the rotary table taper in the described first round table-like space is greater than the rotary table taper in the described second round table-like space.The horn can effectively expand the amplified frequency band of horn.

Description

Horn

[technical field]

The utility model relates to electroacoustic techniques field, a kind of particularly horn.

[background technique]

Horn can improve vibrating diaphragm and the area of air load matches, to improve the electro-acoustic conversion efficiency of electro-acoustic element.

When horn tooling and receiver are used cooperatively, it can be used for detecting receiver performance.Horn tooling in the prior art Amplification band it is narrow, generally 1 to 2k amplification bandwidth, when the position of the higher hamonic wave of receiver occurs mobile, number Cylinder tooling can decline the detection effect of the higher hamonic wave.

[utility model content]

To solve the above-mentioned problems, the utility model provides a kind of horn, and the horn includes cylinder, and is located at institute State the horn mouth and aditus laryngis at cylinder both ends；The cylinder includes first part and between the first part and the aditus laryngis Second part, the inside of the first part is formed with round platform top facing towards the first round table-like space of the aditus laryngis, described The inside of second part is formed with round platform top facing towards the second round table-like space of the aditus laryngis, wherein described first is round table-like The rotary table taper in space is greater than the rotary table taper in the described second round table-like space.

As an improvement the cylinder further includes the third portion between the horn mouth and the first part Point, the inside of the Part III is formed with cylindrical space.

As an improvement the shape of the cylinder is cylindric.

As an improvement the outer surface of the cylinder is provided with the slot along the barrel lenght direction, the slot Cross section is semicircle.

As an improvement the quantity of the slot is two, two slots are relatively arranged on the outer surface of the cylinder.

As an improvement the diameter of the aditus laryngis is 15mm.

As an improvement the cylinder is provided with multiple length around aditus laryngis setting close to one end of the aditus laryngis Cube installation part, the cuboid installation part towards the aditus laryngis plane be parallel to the cylinder cross section plane it Between be provided with inclined-plane.

The beneficial effects of the utility model are: the horn of the utility model makes horn same by designing second level horn structure When formed 2 resonance peaks, the amplified frequency band of horn can be expanded.

[Detailed description of the invention]

Fig. 1 is the cross-sectional view of horn in the utility model embodiment；

Fig. 2 is the bottom view of horn in the utility model embodiment；

Fig. 3 is the perspective view of horn in the utility model embodiment；

Fig. 4 is the amplified frequency band schematic diagram of different horns.

[specific embodiment]

The utility model is described in further detail below by specific embodiment combination Fig. 1 to Fig. 3, so as to The advantages of more fully understanding the embodiment of the utility model and its various aspects.Below in an example, it provides real in detail below The purpose for applying mode is easy for becoming apparent from present disclosure thorough explanation, rather than limitations of the present invention. Wherein the words of the indicating positions such as upper and lower, left and right is only for shown structure in the accompanying drawings position.

As shown in Figure 1, the utility model embodiment provides a kind of horn, which includes cylinder 13, and is located at cylinder The horn mouth 11 and aditus laryngis 12 at 13 both ends；Cylinder 13 is including first part 131 and between first part 131 and aditus laryngis 12 Second part 132, the inside of first part 131 are formed with round platform top facing towards the first round table-like space of aditus laryngis, second part 132 inside is formed with round platform top facing towards the second round table-like space of aditus laryngis, wherein the rotary table taper in the first round table-like space Greater than the rotary table taper in the second round table-like space.

In the prior art, horn forms the single-stage horn structure in a round table-like space using inner barrel, is using When, a resonance peak can be formed；Horn is allowed to be formed simultaneously two by designing second level horn structure using the technical solution Resonance peak has expanded the amplified frequency band of horn.

As shown in Figure 1, cylinder further includes the Part III 133 between horn mouth 11 and first part 131, third portion 133 inside is divided to be formed with cylindrical space.Part III 133 is the marginal portion of cylinder.

As shown in Figure 1, the shape of cylinder 13 is cylindric.As shown in Figures 2 and 3, the outer surface of cylinder 13 is provided with edge The slot 14 in barrel lenght direction, the cross section of slot 14 be semicircle.Specifically, the quantity of slot 14 is two, and two slots are opposite It is set to the outer surface of cylinder.

Cylinder 13 is provided with multiple cuboid installation parts 15 being arranged around aditus laryngis 12, cuboid close to one end of aditus laryngis 12 Installation part 15 towards aditus laryngis plane and be parallel to cylinder cross section plane between be provided with inclined-plane.Slot and rectangle installation Body can make horn be convenient for being used cooperatively with receiver as tooling.

Broadband horn frequency range in the utility model embodiment can be obtained by design, and it is different to can choose amplification Region, such as 2 to 7kHz or 4 to 10kHz.Wherein, the amplification frequency of second level horn structure provided by the embodiment of the utility model Band range is 6.5 to 1410kHz.

In the utility model embodiment, the diameter of aditus laryngis is 15mm.As shown in figure 4, abscissa is the frequency of sound, indulge Coordinate is sound pressure level, and SPL0 curve represents the sound pressure level without using sound when horn；Horn1 curve is using larynx in the prior art The sound pressure level of sound when mouthful diameter is the level-one horn of 15mm, horn2 curve be the use of throat diameter is 15mm sheet it is practical new The sound pressure level of sound when second level horn in type.

Compared with prior art, the horn of the utility model allows horn to be formed simultaneously two by design second level horn structure A resonance peak has expanded the amplified frequency band of horn.

Above-described is only the embodiments of the present invention, it should be noted here that for the ordinary skill of this field For personnel, without departing from the concept of the present invention, improvement can also be made, but these belong to it is practical Novel protection scope.

Claims

1. a kind of horn, which is characterized in that the horn includes cylinder, and horn mouth and larynx positioned at the cylinder both ends Mouthful；

The cylinder includes first part and the second part between the first part and the aditus laryngis, and described first The inside divided is formed with round platform top facing towards the first round table-like space of the aditus laryngis, and the inside of the second part is formed with circle Countertop is towards the second round table-like space of the aditus laryngis, wherein the rotary table taper in the first round table-like space is greater than described The rotary table taper in the second round table-like space.

2. horn according to claim 1, which is characterized in that the cylinder further includes positioned at the horn mouth and described the The inside of Part III between a part, the Part III is formed with cylindrical space.

3. horn according to claim 1, which is characterized in that the shape of the cylinder is cylindric.

4. horn according to claim 1, which is characterized in that the outer surface of the cylinder is provided with long along the cylinder The slot in direction is spent, the cross section of the slot is semicircle.

5. horn according to claim 4, which is characterized in that the quantity of the slot is two, and two slots are opposite to be set It is placed in the outer surface of the cylinder.

6. horn according to any one of claims 1 to 5, which is characterized in that the diameter of the aditus laryngis is 15mm.

7. horn according to claim 6, which is characterized in that the cylinder is provided with multiple close to one end of the aditus laryngis Around the cuboid installation part of aditus laryngis setting, the cuboid installation part towards the aditus laryngis plane and be parallel to described Inclined-plane is provided between the plane of the cross section of cylinder.