CN210781253U

CN210781253U - Mobile phone microphone

Info

Publication number: CN210781253U
Application number: CN201921789202.3U
Authority: CN
Inventors: 张贵仲
Original assignee: Shenzhen Shengxi Electronic Co ltd
Current assignee: Shenzhen Shengxi Electronic Co ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-06-16
Anticipated expiration: 2029-10-23

Abstract

The utility model discloses a mobile phone microphone in the technical field of communication equipment, which comprises a microphone body and a microphone wire detachably connected with the microphone body, a circuit board is fixedly connected in a sealed cavity of the microphone body, a microphone control circuit, a mute mode circuit, an audio identification and adjustment circuit, a lithium battery charging circuit and an indication control circuit are arranged on the circuit board, a volume reducing button, a volume adding button and a switch button are arranged on the top of the microphone body through a button waterproof rubber ring, an indicator lamp is embedded on the top of the microphone body through a through hole in a sealing way, a PTT button is arranged on the left side of the microphone body through a through groove and the button waterproof rubber ring, a mobile phone audio interface is connected through a mobile phone plug, a plurality of charging modes can be realized by the built-in rechargeable lithium battery and the matching with the charging circuit, the self-identification voice switch power amplifier is realized by utilizing the audio identification and the adjustment circuit, so as to save energy and electricity, simple operation and convenient use.

Description

Mobile phone microphone

Technical Field

The utility model relates to a communication equipment technical field specifically is cell-phone miaow.

Background

The speaking party can communicate without any network support, no telephone charge is generated, and the method is suitable for relatively fixed and frequent communication occasions; the mobile phone is used as a mobile terminal, is developed rapidly, and has multiple and powerful functions along with the appearance of various small programs and software. For example, the mobile phone can be used for navigation, can also be used as an interphone, and can carry out free talkback without distance limitation through WiFi. But the built-in loudspeaker of cell-phone is little, and if the volume is little when putting the external sound to holding the cell-phone and talkbacking and can not conveniently controlling the speech, for this reason the cell-phone joins in marriage the sound miaow and can really talkback, the audio interface of cell-phone miaow connection cell-phone is amplified to the signal and is sent to high-power loudspeaker again, makes the cell-phone become the intercom, in order to satisfy real user demand, need to design a novel cell-phone miaow urgently, based on this, the utility model discloses a cell-phone miaow is with solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mobile phone microphone to the problem that proposes in solving above-mentioned background art need to design a novel mobile phone microphone urgently in order to satisfy the actual user demand.

In order to achieve the above object, the utility model provides a following technical scheme: the mobile phone microphone comprises a microphone body and a microphone line detachably connected with the microphone body, a circuit board is fixedly connected in a sealed cavity of the microphone body, a microphone control circuit, a mute mode circuit, an audio identification and adjustment circuit, a lithium battery charging circuit and an indication control circuit are arranged on the circuit board, a volume reduction key, a volume increase key and a switch key are arranged at the top of the microphone body through a key waterproof rubber ring, an indicator lamp is embedded at the top of the microphone body through a through hole in a sealing manner, a PTT key is arranged at the left side of the microphone body through a through groove and the key waterproof rubber ring, an electricity taking interface and a mobile phone plug are integrally connected at the other end of the microphone line, a fixing device is arranged on the rear surface of the microphone body, a front microphone head and a loudspeaker are fixedly connected at the front side of the inner wall of the microphone body, and a lithium battery is fixedly connected in the middle of the inner cavity of the microphone, the microphone is characterized in that a rear microphone is fixedly connected to the rear side of the inner wall of the microphone body, and the circuit board is in signal connection with a microphone line, a power taking interface, a mobile phone plug, a volume reduction key, a volume addition key, a switch key, an indicator lamp, a PTT key, a front microphone, a loudspeaker, a rear microphone and a lithium battery.

Furthermore, mesh films are embedded and fixed in the front side and the rear side of the inner wall of the microphone body through grooves.

Furthermore, the surface of the PTT key is uniformly provided with anti-skid bulges.

Further, the fixing device is one of a rotary back clip or a hook, and the rotary back clip is rotatably connected with the rear surface of the microphone body through a fastening hole of the rotary back clip.

Furthermore, a rubber block is plugged into the power taking interface, and the rubber block is fixedly glued with the outer wall of the microphone line in an embedded mode through a rubber strip.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an audio interface of cell-phone is connected to microphone line one end, and the other end is connected with microphone body, and the microphone line is on the microphone line can be from the electric interface of getting of cell-phone one end electricity, as long as the cell-phone possesses the OTG mode can provide the emergent power supply of little electric quantity, and microphone side can take off microphone line, talks microphone body through special charging wire and charges;

the microphone body obtains audio information from an audio interface of the mobile phone through a microphone line and a mobile phone plug, wherein the audio information is mainly output by a left sound channel and a right sound channel and input by a microphone; firstly, the microphone automatically detects whether signals exist in the left and right sound channels, if so, the microphone is automatically started to be internally provided with an audio recognition and regulation circuit, and after the audio signals of the left and right sound channels are amplified, a load high-power loudspeaker is driven to make a sound; secondly, the microphone body can be adjusted by volume plus-minus keys;

when the mobile phone microphone does not press the PTT key, the mobile phone microphone waits for left and right sound channel signals of the mobile phone; once the PTT key is pressed down or the switch key at the top is pressed down for a short time, the microphone enters an outward talkback transmitting mode, at the moment, the microphone starts to work, and an audio signal is collected and sent back to the host;

the audio recognition and regulation circuit is started only when needing amplification in order to save electric quantity, and can be turned off through a top switch key when not used for a long time; in the aspect of power supply processing, if an external power supply is connected, the external power supply can be preferentially used for supplying power, and when the external power supply exists, if the audio identification and regulation circuit works, the audio identification and regulation circuit is preferentially supplied to work, the audio identification and regulation circuit is charged with small current, when the power amplifier does not work, the high-current charging is carried out rapidly, and if the power amplifier supplies power for the OTG mode emergency of the mobile phone, the charging is carried out slowly;

the device passes through cell-phone plug connection cell-phone audio interface, and built-in chargeable lithium cell can realize multiple charge mode with the cooperation charging circuit, utilizes audio frequency discernment and regulating circuit self-identification voice switch power amplifier to energy-conserving power saving, loudspeaker cooperation volume add-subtract button can adjustable volume, easy operation, convenient to use.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a bottom view of the microphone body of fig. 1;

fig. 3 is a schematic diagram of the microphone control circuit of the present invention;

FIG. 4 is a schematic diagram of the mute mode circuit of the present invention;

FIG. 5 is a schematic diagram of the audio recognition and adjustment circuit of the present invention;

fig. 6 is a schematic diagram of a lithium battery charging circuit of the present invention;

fig. 7 is a schematic diagram of the indicating control circuit of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

the microphone comprises a microphone body 1, a microphone line 2, a volume reducing button 10, an indicator light 11, a volume increasing button 12, a switch button 13, a PTT button 14, a fixing device 15, a front microphone 16, a loudspeaker 17, a rear microphone 18, a lithium battery 19, a power-taking interface 20 and a mobile phone plug 21.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: a mobile phone microphone comprises a microphone body 1 and a microphone line 2 detachably connected with the microphone body, a circuit board is fixedly connected in a sealed cavity of the microphone body 1, a microphone control circuit, a mute mode circuit, an audio identification and adjustment circuit, a lithium battery charging circuit and an indication control circuit are arranged on the circuit board, a volume reducing button 10, a volume increasing button 12 and a switch button 13 are arranged on the top of the microphone body 1 through a button waterproof rubber ring, an indicator lamp 11 is embedded on the top of the microphone body 1 through a through hole in a sealing manner, a PTT button 14 is arranged on the left side of the microphone body 1 through a through groove and the button waterproof rubber ring, an electricity taking interface 20 and a mobile phone plug 21 are integrally connected with the other end of the microphone line 2, a fixing device 15 is arranged on the rear surface of the microphone body 1, a front microphone head 16 and a loudspeaker 17 are fixedly connected on the front side of the inner wall of the microphone body 1, a lithium battery 19 is fixedly connected in, the rear microphone 18 is fixedly connected to the rear side of the inner wall of the microphone body 1, and the circuit board is in signal connection with the microphone line 2, the power taking interface 20, the mobile phone plug 21, the volume reduction key 10, the volume addition key 12, the switch key 13, the indicator light 11, the PTT key 14, the front microphone 16, the loudspeaker 17, the rear microphone 18 and the lithium battery 19.

Wherein, the front and back sides of the inner wall of the microphone body 1 are embedded and fixed with mesh films through grooves, so that the entry of sundries is reduced.

The surface of the PTT key 14 is uniformly provided with anti-slip bulges, so that friction is increased, and the PTT key is convenient to hold and operate.

The fixing device 15 is one of a rotary back clip or a hook, the hook is fixed on the rear surface of the microphone body 1, and the rotary back clip is rotatably connected with the rear surface of the microphone body 1 through a fastening hole of the rotary back clip, so that the microphone is suitable for various scenes.

Get in the electric interface 20 and fill in the block rubber, and the block rubber passes through the embedded fixed sticky of rubber strip with the outer wall of miaow line 2, avoids blocking, influences charging.

After the microphone body 1 is communicated with a mobile phone through a microphone line 2, the microphone is turned on by long pressing a switch key 13, if a hook type is selected, the microphone is muted when the microphone is hung on a hanging rack and is in a standby state, if SW1 in the figure is equivalent to a switch formed by a hook and the hanging rack, if SW1 is pressed down when the microphone is hung, an ML + signal is connected with the ground through MOS tubes Q2 and Q3 and is muted;

as shown in fig. 3, when the PTT key 14 is pressed and the key K0 is held, or the on/off key 13 is pressed for a short time, i.e. the PTT mode, the single chip microcomputer U3 microphone control circuit is turned on, the front and rear microphones M (including the front microphone 16 and the rear microphone 18) start to collect audio signals, and simultaneously, the microphone breaking sound and the sound filtering are processed, and microphone information is transmitted to the mobile phone through the microphone line 2;

the microphone is in a standby state and can receive sound information transmitted from the outside in real time, as shown in fig. 5, the voice sensor U3 monitors the outside voice all the time, once the external voice is monitored, the power amplifier U1 is enabled, and the analog audio signal amplified by the U1 is sent to the loudspeaker 17 (as shown in the SPK of fig. 5) in a differential mode to make sound;

the volume of the loudspeaker can be controlled by a volume adding key 12(SPK +) or a volume reducing key 10(SPK-), and a digital potentiometer U2 is adjusted, so that the preceding stage input of a power amplifier U1 is adjusted, the volume of the loudspeaker 17 is adjusted to a comfortable degree, U2 receives continuous key continuous adjustment of the volume, if the length of the press exceeds 1 second, the volume is automatically adjusted at a speed of 4 grids per second, and the adjustable range of the volume is 32 grids;

in addition, as shown in fig. 6, the mobile phone microphone can not supply power to the microphone in real time, so a rechargeable built-in lithium battery 19 (BAT in fig. 6) is selected, the microphone wire 2 connected with the mobile phone can be taken down from the microphone, the microphone is charged by using a special microphone charging wire, the charging current can reach 1A at the moment, if the mobile phone is in emergency charging, the mobile phone is powered, the charging current is 200mA at the moment, except that the power amplifier U1 is preferentially supplied, the switch key 13 is identified by a single chip microcomputer as long-press switch machine, and the short-press switch is a push-talk, namely, in the power-on state, the front microphone 16 can be used for talking by only short-pressing the switch key 13, and the function of the PTT 0 is realized without pressing the key all the time; fig. 7 shows the situation that the indicating lamp 11 indicates the electric quantity of the microphone.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. Cell-phone miaow, including miaow body (1) and rather than dismantling miaow line (2) of being connected, its characterized in that: a circuit board is fixedly connected in a sealed cavity of the microphone body (1), a microphone control circuit, a mute mode circuit, an audio identification and adjustment circuit, a lithium battery charging circuit and an indication control circuit are arranged on the circuit board, a volume reduction button (10), a volume addition button (12) and a switch button (13) are arranged on the top of the microphone body (1) through a button waterproof rubber ring, an indicator lamp (11) is embedded on the top of the microphone body (1) through a through hole in a sealing manner, a PTT (push-to-talk) button (14) is arranged on the left side of the microphone body (1) through a through groove and the button waterproof rubber ring, an electricity taking interface (20) and a mobile phone plug (21) are integrally connected with the other end of the microphone wire (2), a fixing device (15) is arranged on the rear surface of the microphone body (1), a front microphone head (16) and a loudspeaker (17) are fixedly connected on the front side of the inner wall of the microphone body (, the microphone is characterized in that a lithium battery (19) is fixedly connected to the middle of an inner cavity of the microphone body (1), a rear microphone (18) is fixedly connected to the rear side of the inner wall of the microphone body (1), and the circuit board is in signal connection with a microphone line (2), a power taking interface (20), a mobile phone plug (21), a volume reduction key (10), a volume addition key (12), a switch key (13), an indicator light (11), a PTT key (14), a front microphone (16), a loudspeaker (17), a rear microphone (18) and the lithium battery (19).

2. The mobile phone microphone according to claim 1, wherein: mesh films are embedded and fixed in the front side and the rear side of the inner wall of the microphone body (1) through grooves.

3. The mobile phone microphone according to claim 1, wherein: anti-skid protrusions are uniformly arranged on the surface of the PTT key (14).

4. The mobile phone microphone according to claim 1, wherein: the fixing device (15) is one of a rotary back clip or a hook, and the rotary back clip is rotatably connected with the rear surface of the microphone body (1) through a fastening hole of the rotary back clip.

5. The mobile phone microphone according to claim 1, wherein: the rubber block is plugged into the electricity taking interface (20), and the rubber block is fixedly glued with the outer wall of the microphone line (2) in an embedded mode through the rubber strip.