Microphone shell and bottom structure

Abstract

The utility model discloses a microphone housing and a bottom structure, the microphone housing comprises an upper cover and a lower cover provided with a gap, the lower cover is fixedly installed on the upper cover, the upper cover is provided with an upper cavity, the lower cover is provided with a lower cavity, and when the lower cover is fixedly installed on the upper cover, the upper cavity and the lower cavity form an accommodating cavity. The upper cover is provided with at least one fan-shaped hole, and the upper cover is provided with a light guide hole. The damping silica gel sleeve and the flexible body can absorb and reduce resonance generated by mechanical vibration, noise is reduced from the source, sound waves pass through the fan-shaped holes and the silencing holes in sequence in the transmission process, so that the sound waves rub with media and are treated for multiple times, the amplitude of the sound waves is effectively reduced, the maximum noise reduction effect is achieved, and the noise reduction effect is improved. And the influence caused by noise is greatly reduced, so that a sound absorption and micropore noise reduction system is established, and the sound insulation effect of the microphone is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to thin -walled stainless steel pipeline sealing connection technical field, concretely relates to a microphone shell and bottom structure. BACKGROUND

[0002] The prior art long strip sound box is placed on the small hole in the center of the shell and is fixed by point gluing, and the vibration generated when the loudspeaker works is transmitted to the microphone array through the shell, which greatly affects the use of far-field voice, and the vibration is particularly obvious when the loudspeaker plays bass, which will affect the pickup effect of the microphone and the use experience of the far-field voice, that is, the vibration generated when the loudspeaker works will affect the normal use of the microphone. SUMMARY

[0003] (1) Technical problem to be solved

[0004] In view of the defects of the prior art, the utility model aims at providing a microphone shell and bottom structure, which solves the problem that the vibration generated when the loudspeaker works affects the normal use of the microphone.

[0005] (2) Technical scheme

[0006] In order to solve the above technical problems, the utility model provides a kind of microphone shell, which comprises upper cover and lower cover with notch, and the lower cover is fixedly installed on the upper cover, the upper cover has upper cavity, and the lower cover has lower cavity, when the lower cover is fixedly installed on the upper cover, the upper cavity and the lower cavity form accommodating cavity, at least one fan-shaped hole is formed in the upper cover, and a light guide hole is formed in the upper cover.

[0007] A microphone bottom structure is installed in the accommodating cavity, and the microphone bottom structure comprises a PCB board support fixedly installed in the inner top wall of the upper cover, a shock-absorbing silica gel sleeve fixedly installed on the side of the PCB board support away from the inner top wall of the upper cover, a flexible body fixedly installed in the shock-absorbing silica gel sleeve, a PCB board fixedly installed on the side face of the shock-absorbing silica gel sleeve away from the PCB board support, and at least one microphone fixedly installed on the side of the PCB board away from the shock-absorbing silica gel sleeve.

[0008] Further, at least one first through hole is formed in the PCB board support, and at least one second through hole is formed in the shock-absorbing silica gel sleeve.

[0009] Further, at least one third through hole is formed in the flexible body, and at least one fourth through hole is formed in the PCB board.

[0010] Further, the positions of the at least one first through hole, the at least one second through hole, the at least one third through hole and the at least one fourth through hole correspond one by one.

[0011] Further, the light guide member is provided with a mounting plate fixedly sleeved on the outer surface of the light guide member, the PCB board support, the shock-absorbing silica gel sleeve, the flexible body and the PCB board are all provided with mounting holes for mounting the light guide member.

[0012] Further, the shock-absorbing silica gel sleeve and the flexible body are both provided with mounting grooves for mounting the mounting plate.

[0013] (3) Advantageous effects

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] The utility model discloses first utilize shock-absorbing silica gel sleeve and flexible body can absorb the resonance of mechanical vibration, reduce noise from the source, second, the sound wave is in the transmission process through the fan-shaped hole and the sound hole successively, makes the sound wave and medium rub and be handled repeatedly, effectively reduces the sound wave amplitude, reaches the maximization's noise reduction effect, greatly reduces the influence that noise brings, thereby establishes the sound absorption and micropore noise reduction system, ensures the sound insulation effect of microphone. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the three-dimensional schematic diagram of the utility model.

[0017] Figure 2 It is the explosion schematic diagram of the utility model.

[0018] Figure 3 It is the sectional view schematic diagram of the utility model.

[0019] Figure 4 It is the three-dimensional schematic diagram of the light guide member of the utility model.

[0020] Figure 5 It is the Figure 3 Enlarged structure schematic diagram of A place in the utility model.

[0021] Figure 6 It is the Figure 3 Enlarged structure schematic diagram of B place in the utility model.

[0022] The marks in the drawings are: 1, upper cover;2, lower cover;3, PCB board support;4, shock-absorbing silica gel sleeve;5, flexible body;6, PCB board;7, microphone;8, light guide member;9, mounting plate;10, mounting hole;11, mounting groove;101, fan-shaped hole;102, light guide hole. DETAILED DESCRIPTION

[0023] This specific embodiment is a kind of microphone shell and bottom structure, and its structural schematic diagram is as shown in Figures 1-6As shown, the microphone shell includes an upper cover 1 and a lower cover 2 provided with a notch, the lower cover 2 is fixedly installed on the upper cover 1, the upper cover 1 has an upper cavity, the lower cover 2 has a lower cavity, the upper cavity and the lower cavity form a containing cavity when the lower cover 2 is fixedly installed on the upper cover 1, at least one fan-shaped hole 101 is formed in the upper cover 1, and a light guide hole 102 is formed in the upper cover 1.

[0024] The microphone bottom structure is installed in the containing cavity, and the microphone bottom structure includes a PCB board support 3 fixedly installed on the inner top wall of the upper cover 1, a damping silica gel sleeve 4 fixedly installed on the side of the PCB board support 3 away from the inner top wall of the upper cover 1, a flexible body 5 fixedly installed in the damping silica gel sleeve 4, a PCB board 6 fixedly installed on the side of the damping silica gel sleeve 4 away from the PCB board support 3, and at least one microphone 7 fixedly installed on the side of the PCB board 6 away from the damping silica gel sleeve 4.

[0025] At least one first through hole is formed in the PCB board support 3, at least one second through hole is formed in the damping silica gel sleeve 4, at least one third through hole is formed in the flexible body 5, and at least one fourth through hole is formed in the PCB board 6, the positions of the at least one first through hole, the at least one second through hole, the at least one third through hole and the at least one fourth through hole correspond one by one, the first through hole and the corresponding second through hole, third through hole and fourth through hole are communicated to form a sound attenuation hole, and the first through hole and the corresponding second through hole, third through hole, fourth through hole and fan-shaped hole 101 are communicated;

[0026] The damping silica gel sleeve 4 is fixedly installed on the PCB board support 3, and the PCB board support 3 is fixedly installed on the inner wall of the upper cover 1, so that the fixed connection mode of the damping silica gel sleeve 4 and the microphone shell is completed, the vibration amplitude can be reduced, and the stability of the structure is ensured.

[0027] The damping silica gel sleeve 4 and the flexible body 5 can absorb and reduce resonance caused by mechanical vibration, thereby reducing noise from the source, and sound waves pass through the fan-shaped hole 101 and the sound attenuation hole in sequence during transmission, so that the sound waves rub against the medium and are processed multiple times, the sound wave amplitude is effectively reduced, the maximum noise reduction effect is achieved, the influence of noise is greatly reduced, and thus an absorption and micropore noise reduction system is established, and the sound insulation effect of the microphone is ensured.

[0028] Further comprising a light guide piece 8, an installation plate 9 is fixedly sleeved on the outer surface of the light guide piece 8, installation holes 10 for installing the light guide piece 8 are formed in the PCB board support 3, the damping silica gel sleeve 4, the flexible body 5 and the PCB board 6, installation grooves 11 for installing the installation plate 9 are formed in the damping silica gel sleeve 4 and the flexible body 5, and the installation holes 10 and the installation grooves 11 formed in the damping silica gel sleeve 4 and the flexible body 5 are communicated.

[0029] When the light guide 8 is installed, the light guide 8 can be placed in the mounting hole 10 of the shock-absorbing silica gel sleeve 4 and the flexible body 5 first, at this time the mounting plate 9 is inside the mounting groove 11, then the shock-absorbing silica gel sleeve 4 is fixedly installed on the PCB board support 3, at this time one end of the light guide 8 is in the mounting hole 10 of the PCB board support 3, then the PCB board 6 is fixedly installed on the shock-absorbing silica gel sleeve 4, at this time the light guide 8 penetrates the mounting hole 10 of the PCB board 6 and extends to the outside of the PCB board 6, and the two side surfaces of the mounting plate 9 are fixedly connected with the PCB board support 3 and the PCB board 6 respectively, under the cooperation of the mounting hole 10 and the mounting groove 11, the light guide 8 is fixed, and the position of the light guide 8 corresponds to the position of the light guide hole 102 of the upper cover 1, under the arrangement of the light guide hole 102, the light guided by the light guide 8 can be emitted through the light guide hole 102.

[0030] All the technical features in the embodiment can be freely combined according to actual needs.

[0031] The above embodiment is a preferred implementation scheme of the utility model, in addition, the utility model can be implemented in other ways, and any obvious replacement without departing from the technical scheme concept is within the protection scope of the utility model.

Claims

1. A microphone housing, characterized by: The microphone shell comprises an upper cover (1) and a lower cover (2) with a notch, the lower cover (2) is fixedly installed on the upper cover (1), the upper cover (1) has an upper cavity, the lower cover (2) has a lower cavity, the upper cavity and the lower cavity form a containing cavity when the lower cover (2) is fixedly installed on the upper cover (1), at least one fan-shaped hole (101) is formed on the upper cover (1), and a light guide hole (102) is formed on the upper cover (1).

2. A microphone bottom structure, characterized by, The microphone bottom structure is installed in the containing cavity of claim 1, the microphone bottom structure comprises a PCB board support (3) fixedly installed on the inner top wall of the upper cover (1), a shock-absorbing silica gel sleeve (4) fixedly installed on the side of the PCB board support (3) away from the inner top wall of the upper cover (1), a flexible body (5) fixedly installed in the shock-absorbing silica gel sleeve (4), a PCB board (6) fixedly installed on the side of the shock-absorbing silica gel sleeve (4) away from the PCB board support (3), and at least one microphone (7) fixedly installed on the side of the PCB board (6) away from the shock-absorbing silica gel sleeve (4).

3. The microphone bottom structure according to claim 2, characterized in that, At least one first through hole is formed on the PCB board support (3), and at least one second through hole is formed on the shock-absorbing silica gel sleeve (4).

4. The microphone bottom structure according to claim 3, characterized in that, At least one third through hole is formed on the flexible body (5), and at least one fourth through hole is formed on the PCB board (6).

5. The microphone bottom structure according to claim 4, characterized in that, The positions of the at least one first through hole, the at least one second through hole, the at least one third through hole and the at least one fourth through hole correspond to each other.

6. The microphone bottom structure according to claim 4, wherein A light guide piece (8) is further included, an installation plate (9) is fixedly sleeved on the outer surface of the light guide piece (8), and installation holes (10) for installing the light guide piece (8) are formed on the PCB board support (3), the shock-absorbing silica gel sleeve (4), the flexible body (5) and the PCB board (6).

7. The microphone bottom structure according to claim 6, characterized in that, Installation grooves (11) for installing the installation plate (9) are formed on the shock-absorbing silica gel sleeve (4) and the flexible body (5).

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