WO2022105101A1

WO2022105101A1 - Microphone integrted with loudspeaker

Info

Publication number: WO2022105101A1
Application number: PCT/CN2021/089071
Authority: WO
Inventors: Hua Chen
Original assignee: Beijing Kuzhi Technology Co., Ltd.
Priority date: 2020-11-23
Filing date: 2021-04-22
Publication date: 2022-05-27
Also published as: CN213368130U

Abstract

The utility model relates to a microphone integrated with a loudspeaker, including a microphone assembly, a loudspeaker assembly and a handle assembly that are sequentially connected in a stacking manner. The loudspeaker assembly includes a loudspeaker housing, a speaker, and a cone reflector; the speaker is mounted in the loudspeaker housing, an independently sealed loudspeaker sound cavity is formed between the speaker and the loudspeaker housing, a sound production face of the speaker is disposed backing the microphone assembly, the cone reflector is connected to the handle assembly, and a protruding direction of the cone reflector is set toward the sound production face of the speaker. The present disclosure adopts a structural design method of the speaker and the cone reflector, which improves sound volume and sound quality, and may significantly prevent howling.

Description

MICROPHONE INTEGRTED WITH LOUDSPEAKER

Technical Field

The utility model relates to the technical field of multimedia, in particular, to a microphone integrated with a loudspeaker.

Background

There are currently three types of microphones integrated with loudspeakers on the market.

The first type is a horn-shaped microphone integrated with a loudspeaker, commonly referred to as a “horn” microphone.

The second type is an interview type microphone integrated with a loudspeaker.

The third type is a cup-shaped microphone integrated with a loudspeaker, having a detachable cartridge.

The followings are disadvantages of the three types of microphones integrated with loudspeakers.

a. The loudspeaker sound quality is poor: due to the fact that the loudspeaker part does not have an independent sound cavity or a bass radiator, sound quality of the loudspeaker is poor, and especially the low-frequency sound quality loss is serious, which can be understood as that making a sound is the best it could do, or that the three types of microphones integrated with loudspeakers are just making sound louder.

b. The problem of howling is severe and it is impossible to avoid howling completely: due to the fact that the loudspeaker part and the microphone part lack damping processes, vibration of the loudspeaker may return to the microphone to result in the problem of howling. The howling degree of the three types of microphones can only be reduced by decreasing the gain.

c. The playing sound quality in wireless Karaoke is poor: in order to avoid howling, the human voice gain is decreased, and the human voice is not loud but muffled in wireless Bluetooth Karaoke, thereby bringing a bad experience of Karaoke. Therefore, these microphones are just making sound louder.

Summary

The utility model is intended to provide a microphone integrated with a loudspeaker to solve the above-mentioned problems.

In order to achieve the object of the utility model, the following technical solutions are used.

A microphone integrated with a loudspeaker includes a microphone assembly, a loudspeaker assembly and a handle assembly that are sequentially connected in a stacking manner.

The loudspeaker assembly includes a loudspeaker housing, a speaker, and a cone reflector; the speaker is mounted in the loudspeaker housing, an independently sealed loudspeaker sound cavity is formed between the loudspeaker and the loudspeaker housing, a sound production face of the speaker is disposed backing the microphone assembly, the cone reflector is connected to the handle assembly, and a protruding direction of the cone reflector is set toward the sound production face of the speaker.

Further, the loudspeaker housing includes a housing body and a top cover of the loudspeaker. The speaker and the top cover of the loudspeaker are respectively mounted at two ends of a cavity body of the housing body, so that the independently sealed loudspeaker sound cavity is formed.

Further, acoustic cotton is disposed in the loudspeaker housing.

Further, the microphone assembly includes a pop shield and a cartridge. The pop shield and the loudspeaker housing are connected to form a microphone sound cavity, and the cartridge is mounted in the microphone sound cavity.

Further, the pop shield includes internal anti-pop cotton and a sound mesh disposed in sequence from inside to outside.

Further, the microphone assembly includes a sponge cover that covers the pop shield.

Further, the microphone assembly includes a cartridge damping support. The cartridge damping support is mounted in the microphone sound cavity, and the cartridge is mounted on the cartridge damping support.

Further, the cartridge damping support is provided with an accommodating cavity for mounting of the cartridge.

Further, a shockproof pad connected to the speaker is further mounted in the loudspeaker housing.

Further, the loudspeaker housing is provided with sound outlet holes.

With the above technical solutions, the utility model has the following beneficial effects.

(1) With the independently sealed loudspeaker sound cavity formed in the loudspeaker assembly, sound volume and sound quality may be improved, because mutual interference of forward and reverse sounds of the speaker is overcome, solving the problem of mutual cancellation of the sounds.

(2) With the independently sealed loudspeaker sound cavity formed in the loudspeaker assembly, the reverse sound of the speaker may be collected, and accordingly it may not be transmitted to the microphone assembly, so that the problem of howling is solved.

(3) The sound production face of the loudspeaker is disposed backing the microphone assembly, so that the sound produced by the speaker may not be picked by the microphone assembly, by which the problem of howling is further solved.

Brief Description of the Drawings

In order to describe the technical solutions in specific implementation modes of the utility model or a prior art more clearly, the drawings required for depicting the specific implementation modes or the prior art will be simply introduced below. Obviously, the drawings in the following depiction only relate to some implementation modes of the utility model. Those ordinarily skilled in the art may further obtain other drawings according to these drawings without creative effort.

Fig. 1 is a schematic structural diagram of a microphone integrated with a loudspeaker provided by the utility model.

Fig. 2 is a structural exploded view of the microphone integrated with the loudspeaker provided by the utility model.

Fig. 3 is structural exploded view of a loudspeaker assembly provided by the utility model.

Fig. 4 is schematic sectional view of the loudspeaker assembly provided by the utility model.

Fig. 5 is a schematic structural diagram of a cartridge damping support of the utility model.

Reference signs: 1-microphone assembly; 2-loudspeaker assembly; 3-handle assembly; 21-speaker housing; 22-speaker; 23-cone reflector; 221-sound production face; 211-housing body; 212-top cover of the loudspeaker; 213-cavity body; 11-pop shield; 12-cartridge; 214-conical backing face; 111-internal anti-pop cotton; 112-sound mesh; 13-sponge cover; 14-cartridge damping support; 141-mount; 142-first flexible connecting rib; 143-first holder; 144-second flexible connecting rib; 145-second holder; 4-shockproof pad; 31-handle; 32-battery; 33-PCBA; 34-sleeve; 35-decorative cover; 36-foot pad; 37-power function button; 38-light guide element; 39-EVA gasket; and 40-silicone pad.

Detailed Description of the Embodiments

The technical solutions in the utility model will be clearly and completely described below in combination with the drawings. Obviously, the described embodiments are not all embodiments but part of embodiments of the utility model. On the basis of the embodiments of the utility model, all other embodiments obtained on the premise of no creative effort of those of ordinary skill in the art fall within the scope of protection of the utility model.

In the description of the utility model, it is to be noted that unless otherwise specified and limited, the terms ” mounting” , ” mutual connection” and ” connection” should be understood in a general sense. For example, the connection may be fixed connection or detachable connection or integral connection, the connection may be mechanical connection or electrical connection, and the connection may be direct connection or indirect connection through an intermediate media or communication inside two elements. Those of ordinary skill in the art can understand specific implications of the above terms in the utility model in specific situations.

Embodiment 1

As shown in Fig. 1 and Fig. 5, a microphone integrated with a loudspeaker of the present disclosure includes a microphone assembly 1, a loudspeaker assembly 2 and a handle assembly 3 that are sequentially connected in a stacking manner.

The loudspeaker assembly 2 includes a loudspeaker housing 21, a speaker 22 and a cone reflector 23. The loudspeaker housing 21 is provided with sound outlet holes; the speaker 22 is mounted in the loudspeaker housing 21; and an independently sealed loudspeaker sound cavity is formed between the speaker 22 and the loudspeaker housing 21. A sound production face 221 of the speaker 22 is disposed backing the microphone assembly 1, that is, the speaker 22 is disposed back to the microphone assembly 1 by 180 degrees. The cone reflector 23 is connected to the handle assembly 3, a protruding direction of the cone reflector 23 is set toward the sound production face 221 of the speaker 22. A sound produced by the speaker 22 may be diffused 360 degrees through the cone reflector 23 so as to produce the sound on all sides. The handle assembly 3 is connected to one end of the loudspeaker housing 21 where the speaker 22 is provided. The microphone assembly 1 is connected to the other end of the loudspeaker housing 21.

The loudspeaker housing 21 includes a housing body 211 and a top cover 212 of the loudspeaker. A cavity body 213 is formed inside the housing body 211. The speaker 22 and the top cover 212 of the loudspeaker are respectively mounted at two ends of the cavity body 213, so that the independently sealed loudspeaker sound cavity is formed. Specifically, the top cover 212 of the loudspeaker is mounted on the top of the cavity body 213, and the speaker 22 is mounted at the bottom of the cavity body 213.

Acoustic cotton is disposed in the housing body 211, which can greatly increase a sound volume fraction of the loudspeaker assembly 2, thereby achieving a better low-frequency effect of the loudspeaker assembly 2 and low-frequency extension with lower frequency.

The microphone assembly 1 includes a pop shield 11 and a cartridge 12. The pop shield 11 is connected to the top cover 212 of the loudspeaker to form a microphone sound cavity. The top cover 212 of the loudspeaker protrudes to the microphone sound cavity to form a conical backing face 214, which serves as a conical backing face of the microphone sound cavity, changing an acoustic structure of the microphone sound cavity. The sound is diffused in the microphone sound cavity by the conical backing face 214, preventing the sound from being vertically reflected, so that popping is effectively avoided. In addition, the sound would not be reflected upwardly to cause vibrations of the cartridge 12, thereby further avoiding howling. The cartridge 12 is a sound pickup component, commonly referred to as a microphone core.

In order to save cost, the conical backing face 214 at the bottom of the microphone sound cavity shares the top cover 212 of the loudspeaker. It is to be noted that the microphone sound cavity and the loudspeaker housing 21 may share or not share the top cover 212 of the loudspeaker according to actual conditions, which is not limited in this embodiment.

The pop shield 11 includes internal anti-pop cotton 111 and a sound mesh 112 disposed in sequence from inside to outside. The sound mesh 112 may be a plastic sound mesh, or a single-layer or double-layer sound mesh made of a metal material. Through the sound mesh 112 and the internal anti-pop cotton 111, noise and saliva may be filtered, a physical modification may be achieved, and sound acquisition quality may be improved.

The microphone assembly 1 further includes a sponge cover 13 that covers the pop shield 11. The sponge cover 13 plays a role in popping prevention and appearance beautifying.

The microphone assembly 1 further includes a cartridge damping support 14. The cartridge damping support 14 is mounted on the conical backing face 214 of the microphone sound cavity, and the cartridge 12 is mounted at the center of the microphone sound cavity.

The cartridge damping support 14 includes a mount 141, a first flexible connecting rib 142, a first holder 143, a second flexible connecting rib 144, and a second holder 145. The mount 141 is provided with an accommodating cavity for mounting of the cartridge 12. One end of the first flexible connecting rib 142 is connected to the mount 141, and the other end of the first flexible connecting rib 142 is connected to the first holder 143. One end of the second flexible connecting rib 144 is connected to the mount 141, and the other end of the second flexible connecting rib 144 is connected to the second holder 145. The first flexible connecting rib 142 and the second flexible connecting rob 144 are arranged in symmetry.

Thus, since the cartridge 12 is fixed in the accommodating cavity of the mount 141, and the first flexible connecting rib 142 and the second flexible connecting rib 144 are symmetrically disposed on two sides of the mount 141, vibration may be effectively eliminated through the first flexible connecting rib 142 and the second flexible connecting rib 144, thereby reducing resonance to the cartridge 12 from the loudspeaker assembly 2, preventing from forming of acoustic positive feedback, and further eliminating the problem of howling caused by the resonance. In addition, the first flexible connecting rib 142 and the second flexible connecting rib 144 are symmetrically arranged on two sides of the mount 141, so that stability of the mount 141 can be improved. Thus, when the cartridge 12 is wobbled by a user, noise generated by the wobbling of the cartridge 12 is reduced.

The cartridge damping support 14 may be made of any one of plastics, rubber, and silicone, that is, the cartridge damping support 14 may be manufactured by a flexible material.

A shockproof pad 4 connected to the speaker 22 is further mounted in the cavity body 213 to be used for damping.

The handle assembly 3 includes a handle 31, a battery 32, a Printed Circuit Board Assembly (PCBA) 33, a sleeve 34, a decorative cover 35, and foot pad 36. The battery 32 and the PCBA 33 are respectively disposed inside the handle 31. The PCBA 33 is connected to the battery 32, the speaker 22 and the cartridge 12. The sleeve 34 is mounted on the handle 31. The decorative cover 35 is mounted at the bottom end of the handle 31 and further provided with the foot pad 36. A loudspeaker power amplifier module, a microphone digital processing module, and a microphone audio decoding module are provided on the PCBA 33, which are substantially configured to achieve functions such as playing and sound processing. Herein, the microphone digital processing module and the microphone audio decoding module may be configured for audio decoding, sound effect modifying, and circuit beautifying, to improve playing sound quality. For example, during playing in wireless Karaoke, human voice picked may be processed to avoid quality distortion of the human voice, further improving sound quality and bringing a better serve experience to users. It is to be noted that, devices on the PCBA 33 may be allocated according to actual conditions, which is not limited in this embodiment.

The handle 31 is provided with a power function button 37 and a light guide element 38. The light guide element 38 and the power function button 37 are respectively electrically connected to the PCBA 33. A silicone pad 40 is mounted between the power function button 37 and the PCBA 33. An EVA gasket 39 is disposed surrounding the bottom of the light guide element 38 and may play a role in shading light.

The light guide element 38 may be used for indication. When the light guide element 38 is in a lighting state, the microphone integrated with the loudspeaker is turned on, correspondingly. When the light guide element 38 is in an OFF state, the microphone integrated with the loudspeaker is turned off, correspondingly.

The present disclosure adopts a structural design method of the speaker 22 and the cone reflector 23, which improves sound volume and sound quality, and may significantly avoid howling.

The followings are technical descriptions about sound volume and sound quality improvement and howling prevention.

A. Sound volume and sound improvement.

With the independently sealed loudspeaker sound cavity formed in the loudspeaker housing 21, the sound volume and sound quality may be improved, because mutual interference of forward and reverse sounds of the speaker is overcome, solving the problem of mutual cancellation of the sounds.

B. The followings are detailed descriptions about howling prevention.

(a) . With the independently sealed loudspeaker sound cavity formed in the loudspeaker housing 21, the reverse sound of the speaker 22 may be collected, and accordingly it may not be transmitted to the cartridge 12, thereby solving the problem of howling.

(b) . The sound production face 221 of the speaker 22 is disposed backing the microphone assembly 1, and is just back to the cartridge 12 by 180 degrees, so that the sound produced by the speaker 22 may not be picked by the cartridge 12, thereby solving the problem of howling.

Finally, it is to be noted that the above various embodiments are only used to illustrate the technical solutions of the utility model and shall not be used to limit the same. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art still can modify the technical solutions described in the foregoing embodiments, or equivalently replace part or all of the technical features; all these modifications and replacements shall not cause the essence of the corresponding technical solutions to depart from the scope of the technical solutions of the embodiments of the utility model.

Claims

A microphone integrated with a loudspeaker, comprising a microphone assembly, a loudspeaker assembly and a handle assembly that are sequentially connected in a stacking manner; wherein

the loudspeaker assembly comprises a loudspeaker housing, a speaker, and a cone reflector; the speaker is mounted in the loudspeaker housing, an independently sealed loudspeaker sound cavity is formed between the speaker and the loudspeaker housing, a sound production face of the speaker is disposed backing the microphone assembly, the cone reflector is connected to the handle assembly, and a protruding direction of the cone reflector is set toward the sound production face of the speaker.
The microphone integrated with the loudspeaker according to claim 1, wherein the loudspeaker housing comprises a housing body and a top cover of the speaker, the housing body and the top cover of the speaker being respectively mounted at two ends of a cavity body of the housing body, so that the independently sealed loudspeaker sound cavity is formed.
The microphone integrated with the loudspeaker according to claim 1, wherein acoustic cotton is arranged in the loudspeaker housing.
The microphone integrated with the loudspeaker according to claim 1, wherein the microphone assembly comprises a pop shield and a cartridge, the pop shield and the loudspeaker housing are connected to form a microphone sound cavity, and the cartridge is mounted in the microphone sound cavity.
The microphone integrated with the loudspeaker according to claim 4, wherein the pop shield comprises internal anti-pop cotton and a sound mesh disposed in sequence from inside to outside.
The microphone integrated with the loudspeaker according to claim 4, wherein the microphone assembly further comprises a sponge cover that covers the pop shield.
The microphone integrated with the loudspeaker according to claim 4, wherein the microphone assembly further comprises a cartridge damping support, the cartridge damping support is mounted in the microphone cavity, and the cartridge is mounted on the cartridge damping support.
The microphone integrated with the loudspeaker according to claim 7, wherein the cartridge damping support is provided with an accommodating cavity for mounting of the cartridge.
The microphone integrated with the loudspeaker according to claim 1, wherein a shockproof pad connected to the speaker is further mounted in the loudspeaker housing.
The microphone integrated with the loudspeaker according to claim 1, wherein the loudspeaker housing is provided with sound outlet holes.