CN219802528U - Sound feedback optimizing structure of microphone sound equipment - Google Patents

Abstract

The utility model discloses an acoustic feedback optimization structure of a microphone sound, which comprises a microphone head, wherein the microphone head comprises a shell, and a pickup unit and a loudspeaker which are arranged in the shell, and is characterized in that: a plurality of clapboards are arranged in the cavity between the pickup unit and the loudspeaker, so that the cavity is divided into a plurality of sound absorption cavities. The cavity sound absorption principle is adopted in the design, and when sound energy generated by the loudspeaker is conducted to the sound pickup unit through the sound absorption cavity, the sound energy can be absorbed by the sound absorption cavity to be greatly attenuated, so that the condition of self excitation cannot be achieved, the loudspeaker is prevented from generating self excitation with the sound pickup unit, the loudspeaker is prevented from emitting audible 'buzzing' sound, and the use experience of a user is improved.

Description

Sound feedback optimizing structure of microphone sound equipment

Technical Field

The utility model relates to a microphone sound, in particular to an acoustic feedback optimization structure of the microphone sound.

Background

The prior art needs to sing K to go to special KTV, but with the improvement of the current living standard, the public demand for entertainment is also more and more strong, people hope to sing at any time without going to KTV, and therefore, the equipment capable of being connected with a mobile phone and singing at any time and any place is also presented. The equipment is generally called K song microphone, and mainly integrates the sound pumping system on the handheld microphone, so that the microphone not only can receive the voice of a person, but also can combine the received voice with accompaniment through the processing chip and play the voice through the sound pumping system.

However, the hand-held microphone is compact in structure and small in size, so that the distance between the pick-up unit and the loudspeaker of the microphone is compact, sound feedback exists between the pick-up unit and the loudspeaker, and the loudspeaker and the pick-up unit are easy to generate self-excitation, so that the loudspeaker emits an audible 'buzzing' sound, and the use experience of people is influenced.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides an acoustic feedback optimization structure of a microphone sound.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides a sound feedback optimization structure of microphone stereo set, includes the wheat head, the wheat head includes casing and sets up pickup unit and speaker in the casing, its characterized in that: a plurality of clapboards are arranged in the cavity between the pickup unit and the loudspeaker, so that the cavity is divided into a plurality of sound absorption cavities.

The shell comprises a main shell and a housing, the pickup unit and the loudspeaker are all installed on the main shell, the partition plate is arranged on the main shell, and the sound absorption cavity, the pickup unit and the loudspeaker are all sealed by the housing.

The main shell is provided with a first mounting surface and a second mounting surface, the first mounting surface is intersected with the second mounting surface, the intersecting edge of the first mounting surface and the second mounting surface divides the cavity into a first cavity and a second cavity, and the partition plate is positioned in the second cavity.

And a mounting groove surrounded by the sound barrier plate is formed in the first mounting surface, and the pickup unit is positioned in the mounting groove.

And rib plates are arranged on the partition plates.

A sponge is arranged between the housing and the main shell, and the sponge is covered on the partition plate, so that part of the cavity wall of the sound absorption cavity is formed.

The speakers are asymmetrically arranged.

A sponge layer is arranged between the cover shell and the main shell 4.

The beneficial effects of the utility model are as follows: according to the utility model, the cavity between the pickup unit and the loudspeaker is internally provided with a plurality of partition boards, so that the cavity is divided into a plurality of sound absorption cavities. The cavity sound absorption principle is adopted in the design, and when sound energy generated by the loudspeaker is conducted to the sound pickup unit through the sound absorption cavity, the sound energy can be absorbed by the sound absorption cavity to be greatly attenuated, so that the condition of self excitation cannot be achieved, the loudspeaker is prevented from generating self excitation with the sound pickup unit, the loudspeaker is prevented from emitting audible 'buzzing' sound, and the use experience of a user is improved.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a structural view of the present utility model;

FIG. 2 is an internal structural view of the present utility model;

FIG. 3 is a view of the internal structure of the utility model with both the cover and the sponge hidden;

fig. 4 is a schematic view of an asymmetric arrangement of speakers.

Detailed Description

Advantages and features of the present disclosure, as well as methods of practicing the same, will be elucidated by the following embodiments described with reference to the accompanying drawings. This disclosure may, however, be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Furthermore, the disclosure is limited only by the scope of the claims.

The shapes, sizes, proportions, angles, and numbers disclosed in the drawings for describing embodiments of the present disclosure are merely examples, and thus the present disclosure is not limited to the details shown. Like reference numerals refer to like elements throughout the specification. In the following description, when a detailed description of related known functions or configurations is determined to unnecessarily obscure the gist of the present disclosure, the detailed description will be omitted. Where the terms "comprising," "having," and "including" are used in this specification, other components may be added unless the term "only" is used. Unless indicated to the contrary, singular terms may include the plural.

In interpreting the elements, although not explicitly described, the elements are understood to include the scope of error.

In describing the positional relationship, for example, when the positional relationship is described as "on … …", "above … …", "below … …", and "adjacent to … …", unless "immediately" or "directly" is used, one or more portions may be arranged between two other portions.

In describing the temporal relationship, for example, when the temporal sequence is described as "after … …", "subsequent", "next", and "before … …", unless "just" or "direct" is used, a discontinuous condition may be included.

It will be understood that, although the terms "first," "second," etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present disclosure.

As those skilled in the art will fully appreciate, the features of the different embodiments of the present disclosure may be partially or fully coupled or combined with each other and may cooperate and be technically driven in various ways. Embodiments of the present disclosure may be performed independently of each other or may be performed together in an interdependent relationship.

Referring to fig. 1 to 3, the utility model discloses an acoustic feedback optimizing structure of a microphone sound, comprising a microphone head, wherein the microphone head comprises a shell, and a pickup unit 1 and a loudspeaker 2 which are arranged in the shell, the pickup unit 1 is arranged at the top end of the microphone head for the purpose of function and is convenient for sound reception, the loudspeaker 2 is arranged at the two sides of the microphone head and is convenient for sound transmission and avoids the influence on the pickup unit 1 as much as possible, but because the microphone space is limited, the distance between the loudspeaker 2 and the pickup unit 1 is too close, and the pickup unit 1 and the loudspeaker 2 are of a cavity structure, so that the loudspeaker 2 and the pickup unit 1 are easy to generate self-excitation, and a plurality of baffles 3 are arranged in a cavity between the pickup unit 1 and the loudspeaker 2 for avoiding the self-excitation phenomenon, so that the cavity is divided into a plurality of sound absorption cavities, and the sound energy transmitted to the pickup unit 1 generates great attenuation through the sound absorption cavities.

As shown in the figure, for easy manufacture and assembly, the housing comprises a main housing 4 and a cover 5, the pickup unit 1 and the speaker 2 are both mounted on the main housing 4, and the partition 3 is disposed on the main housing 4, and the sound absorption cavity, the pickup unit 1 and the speaker 2 are all covered by the cover 5, which is of course a further structure, because the cover 5 is provided with a hollowed-out hole, a sponge layer (not shown in the figure) is disposed between the cover 5 and the main housing 4, and the sponge layer can prevent dust from entering the microphone, so that the sponge layer covers the partition 3, thereby forming part of the cavity wall of the sound absorption cavity.

As shown in the figure, in order to match the position setting and installation of the pickup unit 1 and the speaker 2, the main housing 4 is provided with a first installation surface 6 and a second installation surface 7, the second installation surface 7 is opposite, the first installation surface 6 and the second installation surface 7 intersect, in the utility model, the first installation surface 6 and the second installation surface 7 are basically perpendicular to each other, the pickup unit 1 is installed on the first installation surface 6, the speaker 2 is installed on the second installation surface 7, the intersecting edge of the first installation surface 6 and the second installation surface 7 divides the cavity into a first cavity 8 and a second cavity 9, and the partition plate 3 is positioned in the second cavity 9. The partition plate 3 has three, and all equidistance sets up in cavity two 9, then all be equipped with gusset 10 in partition plate 3 and the cavity one 8, gusset 10 not only can strengthen overall structure, prevent that partition plate 3 from warping, can increase the quantity of sound absorption cavity moreover to separate into double eight chambeies with cavity two 9 and cavity one 8. In addition, since the second cavity 9 is adjacent to the speaker 2, the transmission range of the sound wave of the speaker 2 is limited as much as possible, so that the sound wave needs to be absorbed as much as possible before being diffused in a large range, and the first cavity 8 is far away from the speaker 2, so that the sound wave is diffused, and the absorption of the sound wave is weaker, and the partition plate 3 is arranged in the second cavity 9, so that the partition plate 3 is an optimal structure, and although the partition plate 3 can be arranged in the first cavity 8 at the same time, the number of sound absorption cavities is increased, the cost and the manufacturing difficulty are increased obviously compared with the sound absorption effect.

As shown in the figure, in order to further enhance the sound insulation effect, the first mounting surface 6 is provided with a mounting groove surrounded by the sound baffle 11, and the pickup unit 1 is located in the mounting groove.

As shown in fig. 4, as the optimized structure of the present utility model, the speakers 2 are asymmetrically arranged, in the present utility model, the two speakers 2 form a small angle 12, about 10 degrees, and the speakers 2 are asymmetrically distributed, so that the pick-up amount of the microphone to the sound of the two speakers 2 at the same time can be effectively reduced, and the superposition of the sound is avoided, thereby reducing the phenomenon of self excitation.

The above describes in detail the structure for optimizing acoustic feedback of microphone sound provided by the embodiment of the present utility model, and specific examples are applied to illustrate the principle and implementation of the present utility model, and the description of the above embodiments is only used to help understand the method and core idea of the present utility model; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present utility model, the present description should not be construed as limiting the present utility model in view of the above.

Claims (8)

1. The utility model provides a sound feedback optimization structure of microphone stereo set, includes the wheat head, the wheat head includes casing and sets up pickup unit and speaker in the casing, its characterized in that: a plurality of clapboards are arranged in the cavity between the pickup unit and the loudspeaker, so that the cavity is divided into a plurality of sound absorption cavities.

2. The acoustic feedback optimization structure of a microphone stereo set of claim 1, wherein: the shell comprises a main shell and a housing, the pickup unit and the loudspeaker are all installed on the main shell, the partition plate is arranged on the main shell, and the sound absorption cavity, the pickup unit and the loudspeaker are all sealed by the housing.

3. The acoustic feedback optimization structure of a microphone stereo set according to claim 2, wherein: the main shell is provided with a first mounting surface and a second mounting surface, the first mounting surface is intersected with the second mounting surface, the intersecting edge of the first mounting surface and the second mounting surface divides the cavity into a first cavity and a second cavity, and the partition plate is positioned in the second cavity.

4. A microphone sound feedback optimization structure according to claim 3, characterized in that: and a mounting groove surrounded by the sound barrier plate is formed in the first mounting surface, and the pickup unit is positioned in the mounting groove.

5. The acoustic feedback optimization structure of a microphone stereo set of claim 1, wherein: and rib plates are arranged on the partition plates.

6. The acoustic feedback optimization structure of a microphone stereo set according to claim 2, wherein: a sponge is arranged between the housing and the main shell, and the sponge is covered on the partition plate, so that part of the cavity wall of the sound absorption cavity is formed.

7. The acoustic feedback optimization structure of a microphone stereo set of claim 1, wherein: the speakers are asymmetrically arranged.

8. The acoustic feedback optimization structure of a microphone stereo set according to claim 2, wherein: a sponge layer is arranged between the housing and the main shell.