CN212278420U

CN212278420U - Spliced sound microphone

Info

Publication number: CN212278420U
Application number: CN202021425311.XU
Authority: CN
Inventors: 邹先秉; 甘乾镇; 彭志刚
Original assignee: Shenzhen Teana Technology Co ltd
Current assignee: Shenzhen Teana Technology Co ltd
Priority date: 2020-07-18
Filing date: 2020-07-18
Publication date: 2021-01-01
Anticipated expiration: 2030-07-18

Abstract

The application relates to a spliced sound microphone, which belongs to the field of microphones and comprises a shell, a sound pick-up, a control circuit board, a loudspeaker and a battery; the shell comprises a left half shell and a right half shell, and the left half shell and the right half shell are spliced to form a continuous fixing part, a sound cavity part and a holding part; the fixed part is provided with an opening, and the sound pickup is arranged in the opening; the pickup comprises a microphone head, a microphone head bracket and a microphone head wire, the microphone head wire is connected with the microphone head and the control circuit board, a microphone head wire hole is formed between the fixing part and the sound cavity part, and the microphone head wire penetrates through the microphone head wire hole; the microphone line is in a loose state from the microphone line hole to the microphone part; the loudspeaker is installed on the sound cavity part. The application has the advantages that: the structure spare is small in quantity, low in production cost, and tone quality is good, is difficult for appearing squeaking.

Description

Spliced sound microphone

Technical Field

The application relates to the field of microphones, in particular to a spliced sound microphone.

Background

Sound is a set of devices that can reproduce and play audio signals.

Microphones, also known as microphones, are energy conversion devices that convert sound signals into electrical signals. The sound microphone is audio power amplifier equipment integrating the microphone and the sound, and is generally used for occasions such as singing, reciting, hosting, party and the like. The existing sound microphone is generally realized by fixing a handle of the microphone and a sound pickup device at two ends of a sound respectively through supports.

In view of the above-mentioned related technologies, the inventor believes that there are many structural components, the harmonic generated between the structural components destroys the sound quality, and the production cost is high.

SUMMERY OF THE UTILITY MODEL

In order to reduce the manufacturing cost of stereo set microphone, improve the tone quality of stereo set microphone, this application provides a concatenation formula stereo set microphone.

The application provides a concatenation formula stereo set microphone adopts following technical scheme:

a spliced sound microphone comprises a shell, a sound pickup, a control circuit board, a loudspeaker and a battery;

the shell comprises a left half shell and a right half shell, and the left half shell and the right half shell are spliced to form a continuous fixing part, a sound cavity part and a holding part;

the fixed part is provided with an opening, and the sound pickup is arranged in the opening; the pickup comprises a microphone head, a microphone head bracket and a microphone head wire, the microphone head wire is connected with the microphone head and the control circuit board, a microphone head wire hole is formed between the fixing part and the sound cavity part, and the microphone head wire penetrates through the microphone head wire hole; the microphone line is in a loose state from the microphone line hole to the microphone part;

the loudspeaker is installed on the sound cavity part.

By adopting the technical scheme, the number of structural parts of the sound microphone is reduced, so that the production cost is reduced; and because the structural parts forming the sound microphone are fewer in number, the resonance is less likely to occur between the structural parts when the sound microphone is used, and therefore the tone quality of the sound microphone is improved. The microphone line is in a loose state from the microphone line hole to the microphone part, and the influence of the microphone line on microphone sound reception can be reduced.

Preferably, the fixed part is externally connected with a blowout prevention cover.

Through adopting above-mentioned technical scheme, the sound can effectively be avoided spouting in the setting of preventing spouting the cover, can play certain guard action to the miaow head simultaneously, makes the miaow head be difficult for receiving the physical damage.

Preferably, at least one connecting lug is arranged at the edge of the horn; the sound cavity part is provided with a plurality of mounting holes, the loudspeaker is positioned in the mounting holes, and the connecting lug is connected with the sound cavity part through screws.

By adopting the technical scheme, the loudspeaker can be stably fixed on the sound cavity part, so that the loudspeaker shell and the sound cavity part are not easy to resonate when the loudspeaker produces sound.

Preferably, the outer side of the sound cavity part is connected with a protective cover, and the protective cover covers the outside of the loudspeaker.

Through adopting above-mentioned technical scheme, the safety cover can protect loudspeaker for loudspeaker are difficult for receiving the physical damage.

Preferably, the control circuit board is connected with a control button; the control circuit board is connected on the inner side wall of the sound cavity part, a button hole for exposing the control button is formed in the sound cavity part, and a first wiring hole is reserved between the holding part and the sound cavity part.

By adopting the technical scheme, the operation is convenient for a user; the first wiring hole is communicated with the holding part and the sound cavity part, so that the holding part and the sound cavity part jointly form a sound cavity of the sound microphone, the sound cavity is enlarged, and the sound quality of the sound microphone is improved.

Preferably, the control circuit board is connected with a control button and an interface; the control circuit board is transversely connected to the bottom or the top of the inner side of the sound cavity part, a button hole and an interface hole for exposing a control button are formed in the sound cavity part, and a first wiring hole is reserved between the holding part and the sound cavity part.

Preferably, the control circuit board is connected with a control button and an interface; the control circuit board is arranged on the outer side of the sound cavity part, a panel cover is further connected to the outer side of the sound cavity part, the panel cover covers the control circuit board, and a button hole for exposing the control button is formed in the panel cover.

By adopting the technical scheme, the operation of a user is convenient, and the maintenance is convenient after the control circuit board or the control button is damaged; after the control circuit board or the control button is damaged, a maintenance worker can easily detach the panel cover to maintain the control circuit board or the control button.

Preferably, two connecting flanges are integrally formed on one side of the sound cavity part, positioning bulges are formed on one side, back to the sound cavity part, of each connecting flange, the panel cover is located between the two positioning bulges and abutted against the positioning bulges, and the panel cover is in screw connection with the connecting flanges; the panel cover is integrally formed with a positioning strip which is in plug-in fit with the positioning groove.

By adopting the technical scheme, the panel cover is connected with the connecting flange through the bolts, so that the panel cover is convenient to detach and mount; the arrangement of the positioning bulges, the positioning grooves and the positioning strips is convenient for people to accurately install the panel cover at the fixed position outside the sound cavity part.

Preferably, the control circuit board is connected with a control button; the control circuit board is connected to the inner side of the holding part and is provided with a button hole for exposing the control button.

Through adopting above-mentioned technical scheme, do not do under the prerequisite of adjustment at stereo set microphone overall dimension, set up control circuit board to the portion of gripping, compare in setting up the control circuit board to the sound chamber portion outside, can be bigger with the sound chamber portion is done to make the tone quality of stereo set microphone can obtain promoting.

Preferably, the control button is one of a touch button, a rocker button and a five-way button; and the control circuit board is connected with a volume display for displaying the playing volume of the loudspeaker.

By adopting the technical scheme, the number of the keys on the control circuit board can be greatly reduced by adopting the five-way keys, so that the operation of a user is facilitated; the volume display is arranged, so that a user can visually judge the loudspeaker playing volume, and the use experience of the user is promoted.

Preferably, a sheet is attached to the outer side of the sound cavity part, and the sheet avoids the loudspeaker; the sheet is made of one of leather, plastic and metal.

By adopting the technical scheme, the sheet covers the outer side of the sound cavity part, so that the outer side of the sound cavity part is tidier; the sheet made of leather, plastic and metal is adopted, so that the noise generated when the loudspeaker works is lower.

Drawings

Fig. 1 is a schematic overall structure diagram of a tiled acoustic microphone according to a first embodiment of the present application.

Fig. 2 is an exploded view of a tiled acoustic microphone according to a first embodiment of the present application.

Fig. 3 is a schematic structural diagram of the left half-shell and the right half-shell according to the first embodiment of the present application.

Fig. 4 is a schematic view of a connection structure of a panel cover and a sound cavity portion according to an embodiment of the present invention.

Fig. 5 is a schematic view of a connection structure between a control circuit board and a sound cavity portion according to a second embodiment of the present application.

Fig. 6 is a schematic view of a connection structure between a control circuit board and a sound cavity portion according to a third embodiment of the present application.

Fig. 7 is a schematic view of another connection structure of the control circuit board and the sound cavity part according to the third embodiment of the present application.

Fig. 8 is a schematic view of a connection structure between the control circuit board and the holding portion according to a fourth embodiment of the present application.

Description of reference numerals: 1. a left half shell; 2. a right half shell; 31. a fixed part; 32. a cavity part; 321. mounting holes; 322. a first wiring hole; 323. a second wiring hole; 324. a microphone line hole; 33. a grip portion; 4. a sound pickup; 41. a microphone; 42. a microphone bracket; 43. a spray shield; 44. a microphone head line; 5. a battery; 61. a horn; 611. connecting lugs; 62. a protective cover; 621. a cover ring; 622. a cover net; 623. a lug; 70. a control circuit board; 71. a control button; 72. a volume display; 73. a panel cover; 74. a connecting flange; 75. positioning the bump; 76. positioning a groove; 77. a positioning bar; 78. a button hole; 79. a volume hole; 80. an interface; 81. an interface aperture; 9. a sheet.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses concatenation formula stereo set microphone.

The first embodiment is as follows:

referring to fig. 1 and 2, a sectional type acoustic microphone includes a housing, a sound collector 4, a control circuit board 70, and a speaker 61.

Referring to fig. 1 and 2, the housing includes a left half shell 1 and a right half shell 2, and the left half shell 1 and the right half shell 2 can be connected by screws, rivets, welding, bonding, welding, clamping, etc., in this embodiment, the left half shell 1 and the right half shell 2 are screwed. When the left half-shell 1 and the right half-shell 2 are spliced, the fixing portion 31, the sound cavity portion 32 and the holding portion 33 are formed.

Referring to fig. 2, the fixing portion 31 has a cylindrical shape and is connected to the center of the upper end of the sound chamber portion 32. The sound pickup 4 is disposed in the fixing portion 31, and includes a microphone 41, a microphone holder 42, a microphone cord 44, and a blowout preventer 43. The peripheral wall of the microphone bracket 42 is abutted against the inner peripheral wall of the fixing part 31, the microphone 41 is mounted at one end of the microphone bracket 42 far away from the sound cavity part 32, the microphone line 44 is connected with the microphone 41 and the control circuit board 70, a microphone line hole 324 is arranged between the fixing part 31 and the sound cavity part 32, the microphone line 44 passes through the microphone line hole 324, and the microphone line 44 is partially in a loose state from the microphone line hole 324 to the microphone 41.

It should be noted that the microphone bracket 42 may have an arch structure, a hollow-out structure, or a spring structure, but may have other shapes, which is not limited herein. The microphone bracket 42 can be made of silica gel, and the silica gel has lower hardness and can effectively play a role in damping vibration; of course, the microphone holder 42 may be made of other soft materials, such as rubber or TPU (Thermoplastic polyurethane elastomer), or soft plastic with a hardness of less than 80 degrees, as long as the hardness is low and vibration can be effectively damped.

Referring to fig. 1 and 2, the blowout prevention cover 43 is disposed outside the fixing portion 31 and covers the microphone 41. The blowout preventer 43 and the fixing portion 31 can be connected by bonding, welding, interference fit, screwing, etc., in this embodiment, an external thread is processed on the outer periphery of the fixing portion 31 near the sound cavity portion 32, an internal thread is processed on the inner side of the opening of the blowout preventer 43, and the fixing portion 31 and the deflection preventer are screwed. The anti-spraying cover 43 can protect the microphone 41 to a certain extent, so that the microphone 41 is not easily damaged physically; moreover, the anti-spraying cover 43 can also play a certain role in filtering human voice, and can effectively avoid spraying voice.

Referring to fig. 2 and 3, the grip 33 is in the shape of a hollow column, which is connected to the center of the lower side of the sound chamber portion 32, and the outer diameter of the grip 33 is gradually reduced from the end near the sound chamber portion 32 to the end away from the sound chamber portion 32, and the battery 5 is mounted in the grip 33.

Referring to fig. 1 and 2, the speaker 61 is mounted on the peripheral side wall of the sound cavity portion 32, the number of the speakers 61 is at least one, and when the number of the speakers 61 is greater than or equal to two, the speakers 61 are symmetrically mounted on the peripheral side wall of the sound cavity portion 32; in this embodiment, there are two speakers 61, and the two speakers 61 are respectively located on two opposite side walls of the sound cavity portion 32. Specifically speaking, all seted up mounting hole 321 on two relative lateral walls in sound cavity 32, in this embodiment, the shaping has two openings on left half shell 1, and the shaping has two openings on right half shell 2, and after left half shell 1 and right half shell 2 splice, opening on left half shell 1 and the opening concatenation on right half shell 2 form mounting hole 321. Of course, in other embodiments, the two mounting holes 321 may also be completely opened on the left half-shell 1 and the right half-shell 2, respectively. At least one engaging lug 611 (four engaging lugs in the present embodiment) is formed at the edge of the horn 61, and the engaging lug 611 abuts against the outside of the sound cavity portion 32 and is screwed to the sound cavity portion 32.

It is known that sound propagates in a medium in the form of waves. In the case of the acoustic microphone, the sound emitted from the speaker 61 is transmitted to the microphone 41 through the air or through a solid member in the acoustic microphone; the intensity of the sound wave transmitted to the microphone 41 through the air is not very high, but the sound wave transmitted to the microphone 41 through the solid component is stronger, so that a strong self-feedback effect (self-excitation effect) often occurs, and then a certain continuously strengthened sound with a certain fixed frequency is emitted from the horn 61, which is commonly called squeaking, and the normal use of the product is completely destroyed.

When the loudspeaker 61 makes a sound, its diaphragm vibrates back and forth at a specific frequency, and this vibration pushes the nearby air or other medium to vibrate, so that the vibration is transmitted and the sound is transmitted. When only one horn 61 is provided in the cavity portion 32, the horn 61 drives the entire cavity portion 32 and all the structural members connected to the cavity portion 32 to generate vibrations of the same frequency, and when the microphone 41 is placed at a certain position thereof, the vibrations are transmitted to the microphone 41, and squeal is inevitably generated.

In order to weaken and even eliminate the vibration at a specific position and avoid the howling reaction, the application utilizes the principle of phase cancellation to eliminate the vibration. Specifically, two horns 61 having the same performance and size are provided on both sides of the sound chamber portion 32, respectively, and are placed in opposite directions. When sounds with the same frequency occur, because the sounds have the same phase, the same amplitude, the same frequency and the opposite directions, the two vibration waves cancel and weaken each other when meeting each other in the medium, thereby avoiding the generation of howling. Of course, when both the horns 61 face the inside of the cavity portion 32, the occurrence of the howling reaction can be avoided.

Referring to fig. 2, at least two protection covers 62 (two protection covers in this embodiment are taken as an example) are connected to the outside of the sound cavity 32, and the two protection covers 62 are respectively covered outside the horn 61 and screwed to the sound cavity 32. The boot 62 protects the horn 61 so that the horn 61 is not easily physically damaged.

Specifically, the protection cover 62 includes a cover ring 621, a cover net 622 integrally formed at one end of the cover ring 621, and a plurality of lugs 623 integrally formed at the other end of the cover ring 621 along the circumferential direction of the cover ring 621; an embedding opening matched with the cover ring 621 and the lug 623 is formed in the outer edge of the connecting side of the sound cavity part 32 and the protective cover 62, the cover ring 621 and the lug 623 are inserted into the embedding opening, and the lug 623 is in screw connection with the sound cavity part 32.

Referring to fig. 2 and 4, the acoustic microphone further includes a control circuit board 70, a control button 71 connected to one side of the control circuit board 70, and a volume display 72 for displaying the volume of sound played by the speaker 61; the bottom of the holding portion 33 is provided with an interface 80 electrically connected with the control circuit board 70, and the interface 80 is a data interface or a charging interface. The control button 71 can be at least one of a touch button, a rocker button and a five-way button; the volume display 72 can be at least one of a liquid crystal display, an LED screen, or a plurality of LED light beads.

In the present embodiment, the control circuit board 70 is screwed to one side of the outer peripheral surface of the sound chamber portion 32, specifically, to the outside of the right housing; it should be noted that a first wire hole 322 is provided at the connection portion of the sound cavity portion 32 and the holding portion, a second wire hole 323 is provided on the side wall of the sound cavity portion 32 connected to the control circuit board 70, the control circuit board 70 and the battery 5 are connected by a wire (not shown in the figure), and the wire passes through the first wire hole 322 and the second wire hole 323 during wire routing.

In order to protect the control circuit board 70, a panel cover 73 is further connected to the outside of the sound cavity portion 32, the control circuit board 70 is covered by the panel cover 73, and a button hole 78 for exposing the control button 71, a volume hole 79 for exposing the volume display 72, and an interface hole 81 for exposing the interface 80 are formed in the panel cover 73. Specifically, two vertical connecting flanges 74 are integrally formed on the outer side of the sound cavity portion 32, and a vertical positioning ridge 75 is formed on the side of the two connecting flanges 74 facing away from the sound cavity portion 32. In addition, two transverse positioning grooves 76 are formed in the outer side of the sound cavity part 32 and between the two connecting flanges 74, and the two positioning grooves 76 are respectively positioned at the upper edge and the lower edge of the outer side face of the sound cavity part 32; accordingly, two positioning bars 77 fitted into the positioning grooves 76 are integrally formed on the panel cover 73.

When in use, the panel cover 73 is buckled on the connecting flange 74, is positioned between the two positioning bulges 75 and is abutted against the positioning bulges 75, and meanwhile, the two positioning strips 77 on the panel cover 73 are respectively inserted into the two positioning grooves 76; the panel cover 73 is screw-coupled to the coupling flange 74 to facilitate mounting and dismounting of the panel cover 73, thereby facilitating maintenance and repair of the control circuit board 70 and the control buttons 71. Of course, the panel cover 73 and the connection flange 74 may be connected by riveting, welding, bonding, welding, clamping, or the like.

Referring to fig. 1 and 2, the sheet 9 is bonded to the outside of the sound cavity 32, and the sheet 9 is wrapped around the outside of the sound cavity 32 and the panel cover 73, and has a hole for exposing the control button 71, while avoiding the horn 61 side of the sound cavity 32. The arrangement of the sheet 9 makes the appearance of the sound cavity microphone more neat and beautiful. The sheet 9 may be made of leather, PVC (Polyvinyl chloride), aluminum material, or the like, so as to reduce noise generated when the horn 61 is operated as much as possible.

The implementation principle of the first embodiment is as follows: form fixed part 31, sound chamber portion 32 and gripping portion 33 by left half shell 1 and the concatenation of right half shell 2 to in installing microphone 41 and microphone support 42 fixed part 31, install loudspeaker 61 and control circuit board 70 on sound chamber portion 32, install battery 5 in gripping portion 33, greatly reduced stereo set microphone's structure quantity, thereby reduced manufacturing cost. And because the structural parts forming the sound microphone are fewer in number, the resonance is less likely to occur between the structural parts when the sound microphone is used, and therefore the tone quality of the sound microphone is improved.

Example two:

referring to fig. 5, the present embodiment is different from the first embodiment in that: the control circuit board 70 is fixedly connected to the inner side wall of the sound chamber portion 32. A button hole 78, a volume hole 79 and an interface hole 81 are arranged on the side wall of the sound cavity part 32 connected with the control circuit board 70, the control button 71 passes through the sound cavity part 32 through the button hole 78, the interface 80 passes through the sound cavity part 32 through the interface hole 81, the volume display 72 passes through the sound cavity part 32 through the volume hole 79, and sealing treatment is carried out among the sound cavity part 32, the control button 71, the volume display 72 and the interface 80 so as to keep the sound cavity part 32 as closed as possible.

In addition, a first wiring hole 322 is provided at the junction of the sound cavity portion 32 and the grip portion.

The implementation principle of the second embodiment is as follows: under the prerequisite that does not make the adjustment at sound microphone appearance size, set up control circuit board 70 in sound chamber portion 32, compare in setting up control circuit board 70 to the sound chamber portion 32 outside, can do sound chamber portion 32 bigger to make sound microphone's tone quality obtain promoting.

Example three:

referring to fig. 6 and 7, the present embodiment is different from the first embodiment in that: the control circuit board 70 is fixed to the top or bottom wall of the sound chamber portion 32. A button hole 78, a volume hole 79 and an interface hole 81 are arranged at the joint of the sound cavity part 32 and the control circuit board 70, the control button 71 passes through the sound cavity part 32 through the button hole 78, the interface 80 passes through the sound cavity part 32 through the interface hole 81, the volume display 72 passes through the sound cavity part 32 through the volume hole 79, and sealing treatment is carried out among the sound cavity part 32, the control button 71, the volume display 72 and the interface 80 so as to keep the sound cavity part 32 as closed as possible.

Example four:

referring to fig. 8, the present embodiment is different from the first embodiment in that: the control circuit board 70 is fixedly connected to the inner side wall of the grip portion 33. A button hole 78, a volume hole 79 and an interface hole 81 are formed at the joint of the holding part 33 and the control circuit board 70, the control button 71 penetrates out of the holding part through the button hole 78, the interface 80 penetrates out of the holding part through the interface hole 81, the volume display 72 penetrates out of the holding part through the volume hole 79, and sealing treatment is carried out among the holding part, the control button 71, the volume display 72 and the interface 80.

The implementation principle of the fourth embodiment is as follows: under the prerequisite that does not make the adjustment at stereo set microphone appearance size, set up control circuit board 70 to holding portion 33 in, compare in setting up control circuit board 70 to the sound chamber portion 32 outside, can be bigger with what sound chamber portion 32 was done to make the tone quality of stereo set microphone can obtain promoting.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a concatenation formula stereo set microphone, characterized by: comprises a shell, a sound pick-up (4), a control circuit board (70), a loudspeaker (61) and a battery (5);

the shell comprises a left half shell (1) and a right half shell (2), and the left half shell (1) and the right half shell (2) are spliced to form a continuous fixing part (31), a sound cavity part (32) and a holding part (33);

the fixed part (31) is provided with an opening, and the sound pickup (4) is arranged in the opening; the pickup (4) comprises a microphone head (41), a microphone head bracket (42) and a microphone head wire (44), the microphone head wire (44) is connected with the microphone head (41) and the control circuit board (70), a microphone head wire hole (324) is formed between the fixing part (31) and the sound cavity part (32), and the microphone head wire (44) penetrates through the microphone head wire hole (324); the part of the microphone line (44) from the microphone line hole (324) to the microphone (41) is in a loose state;

the horn (61) is mounted on the sound cavity portion (32).

2. The tiled acoustic microphone of claim 1, wherein: the fixed part (31) is externally connected with a spray-proof cover (43).

3. The tiled acoustic microphone of claim 1, wherein: at least one connecting lug (611) is arranged at the edge of the horn (61); the sound cavity part (32) is provided with a plurality of mounting holes (321), the loudspeaker (61) is positioned in the mounting holes (321), and the connecting lug (611) is in screw connection with the sound cavity part (32).

4. The tiled acoustic microphone of claim 1, wherein: the outer side of the sound cavity part (32) is connected with a protective cover (62), and the protective cover (62) covers the outer side of the loudspeaker (61).

5. The tiled acoustic microphone of claim 1, wherein: the control circuit board (70) is connected with a control button (71) and an interface (80); the control circuit board (70) is connected to the inner side wall of the sound cavity part (32), a button hole (78) for exposing the control button (71) and an interface hole (81) for exposing the interface (80) are formed in the sound cavity part (32), and a first wiring hole (322) is reserved between the holding part (33) and the sound cavity part (32).

6. The tiled acoustic microphone of claim 1, wherein: the control circuit board (70) is connected with a control button (71) and an interface (80); the control circuit board (70) is transversely connected to the bottom or the top of the inner side of the sound cavity part (32), a button hole (78) for exposing the control button (71) and an interface hole (81) for exposing the interface (80) are formed in the sound cavity part (32), and a first wiring hole (322) is reserved between the holding part (33) and the sound cavity part (32).

7. The tiled acoustic microphone of claim 1, wherein: the control circuit board (70) is connected with a control button (71) and an interface (80); the control circuit board (70) is arranged on the outer side of the sound cavity portion (32), a panel cover (73) is further connected to the outer side of the sound cavity portion (32), the panel cover (73) covers the control circuit board (70), and a button hole (78) for exposing the control button (71) is formed in the panel cover (73).

8. The tiled acoustic microphone of claim 7, wherein: two connecting flanges (74) are integrally formed on one side of the sound cavity part (32), positioning bulges (75) are formed on one side, back to the sound cavity part (32), of each connecting flange (74), the panel cover (73) is located between the two positioning bulges (75) and is abutted against the positioning bulges (75), and the panel cover (73) is in screw connection with the connecting flanges (74); a positioning groove (76) is formed in the outer side of the sound cavity part (32) and between the two connecting flanges (74), and a positioning strip (77) in plug-in fit with the positioning groove (76) is integrally formed on the panel cover (73).

9. The tiled acoustic microphone of claim 1, wherein: the control circuit board (70) is connected with a control button (71) and an interface (80); the control circuit board (70) is connected to the inner side of the holding part (33), and a button hole (78) for exposing the control button (71) and an interface hole (81) for exposing the interface (80) are formed in the holding part (33).

10. A tiled acoustic microphone according to any of claims 5-9, wherein: the control button (71) is one of a touch key, a rocker key and a five-way key; and the control circuit board (70) is connected with a volume display (72) for displaying the playing volume of the loudspeaker (61).

11. The tiled acoustic microphone of claim 1, wherein: a sheet (9) is attached to the outer side of the sound cavity part (32), and the sheet (9) avoids the loudspeaker (61); the sheet (9) is made of one of leather, plastic and metal.