CN201378866Y

CN201378866Y - Wireless portable microphone

Info

Publication number: CN201378866Y
Application number: CN200920055327U
Authority: CN
Inventors: 杨辉隆
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-24
Filing date: 2009-04-24
Publication date: 2010-01-06
Anticipated expiration: 2019-04-24

Abstract

The utility model relates to the technical field of wireless portable microphones. The wireless portable microphone comprises a transmitter and a receiver, wherein the transmitter comprises a power source, a mini electret condenser microphone electrically connected with the power source, an audio circuit and a frequency-modulating circuit, a speech enhancement module is also arranged on the audio circuit of the transmitter, the speech enhancement module is connected in parallel with the amplifying circuit in the audio circuit, a transfer switch is arranged on the transmitter of the microphone and used for switching the common mode and the speech enhancement mode, and the transfer switch is connected in parallel on the speech enhancement module. The housing of the microphone adopts an anti-jamming shielded-type metal housing, and the power source of the microphone is a secondary battery and is compatible to various power supply modes. The wireless portable microphone can increase the principal sound volume and the definition when being used in the large-noise environment, and the metal housing of the wireless portable microphone has long service life and has good shield effect. The wireless portable microphone is provided with a vertical-type hanger, a horizontal-type hanger, a hanging rope and the like to provide various carrying modes, thereby ensuring convenient and comfortable use.

Description

Wireless carry-on microphone

Technical field

The utility model belongs to the radiotechnics product, is specifically related to wireless carry-on mike technique field, and it is widely used in radio microphones such as tourism, exhibition center, group's field practice activity.

Background technology

Microphone is commonly called as microphone, is translated by Microphone.Microphone is the power conversion device that voice signal is converted to the signal of telecommunication.Twentieth century, microphone is by developing into inductance, condenser type conversion by resistance conversion acoustic-electric at first, a large amount of new microphone techniques grow up gradually, and this is comprising microphones such as aluminium strip, moving-coils, and current widely used capacitance microphone and electret microphone.

Wireless carry-on microphone is easy to carry owing to it, use is not subjected to characteristics such as place restriction, is extensive use of by numerous areas.But traditional wireless carry-on microphone generally all is a plasthetics, the face-piece of regular meeting's scratch when in use, damages phenomenons such as machine because of breaking housing, and useful life is generally not long.And traditional wireless carry-on microphone all has only the mode of wearing of vertical type, join in the use and be hung between waist on the belt, being not suitable for female consumer uses, and when the user sits down or to a lateral turn of joining extension, when bending over, guide's body just can withstand people's waist health, produce hard thing constriction or pain, serious also can injure the user, and the human engineering design is imperfect.

Traditional wireless carry-on microphone all is single sensitivity mostly, does not have voice enhanced function.This class microphone is when reality is used, because of factors such as environment for use or various condition restriction, can use multi-form microphone, as: the microphone that uses head microphone or tie clip formula, because of lacking voice enhanced function, often the user does not just hear bolter's sound, uses the microphone poor effect.In addition, present wireless carry-on microphone generally uses disposable alkaline cell, need more not renew battery when use there is not electricity, the not only high but also not environmental protection of use cost of this mode.

The utility model content

Technical problem to be solved in the utility model provide a kind of have pattern of speech enhancement, shield effectiveness good, wear the wireless carry-on microphone of convenient and long service life.

For solving the problems of the technologies described above, the realization technical solutions of the utility model are: a kind of wireless carry-on microphone, comprise transmitter and receiver, transmitter comprises power supply, the miniature electret capacitor microphone that is electrically connected with power supply, voicefrequency circuit and FM circuit, also is provided with voice on the described transmitter voicefrequency circuit and strengthens module.

Improvement microphone transmitter as such scheme is provided with the change over switch of changing between general mode and the pattern of speech enhancement, and the amplifying circuit that described voice strengthen in module and the voicefrequency circuit is in parallel, and described change over switch is attempted by voice to be strengthened on the module.

As the further improvement of such scheme, microphone case comprises face-piece and drain pan, and microphone body is installed on the plastic cement center, forms complete machine with the face-piece and the drain pan mount of aluminum alloy plate materials extrusion modling on the plastic cement center.Described microphone power supply adopts secondary cell, and microphone case is provided with the charging socket that is electrically connected with power supply.

The vertical type folder extension or the horizontal type folder that are convenient for carrying also are installed on the microphone case in the technique scheme to be hung.The lanyard formula earphone that can connect lanyard also is set simultaneously.This radio microphone antenna adopts flexible good import steel wire as conductor, and the outsourcing flexibility is PVC preferably, forms by the mold injection manufacturing after being equipped with gold-plated thread joint.

The utility model compared with prior art has following remarkable result:

1, the transmitter of this wireless carry-on microphone is provided with voice enhanced function, and the microphone user can regulate the functional mode of required usefulness according to actual conditions, in noisy environment, uses pattern of speech enhancement can obviously improve speech intelligibility.

2, the wireless carry-on microphone of the utility model adopts anti-interference protected type metal shell, and is sturdy and durable, and machine line ground connection, has good shield effectiveness and complete machine useful life.

3, the wireless carry-on microphone of the utility model is equipped with vertical type folder extension, horizontal type folder to hang and the multiple mode of wearing of lanyard, and Energy and comfort meets the bodily fuctions and learns principle.

4, the wireless carry-on microphone of the utility model uses rechargeable secondary cell, and the cradle that is equipped with special use can directly place entire machine in it and charge, and need not battery practicality convenient to remove.And its power supply that connects can be the 220V AC power, also 12V DC power supply.When unconditional charging, also can in time change and use the reserve battery that carries, the compatible multiple powering mode of originally wireless carry-on microphone uses convenient.

Description of drawings

Fig. 1 is the STRUCTURE DECOMPOSITION schematic diagram of microphone receiver of the present utility model;

Fig. 2 is the schematic diagram that the utility model microphone receiver is provided with horizontal type folder hanging hang structure;

Fig. 3 is the schematic diagram that the utility model microphone transmitter is provided with vertical type folder hanging hang structure;

Fig. 4 is the structured flowchart of transmitter FM circuit part among Fig. 3;

Embodiment

The utility model is described in further detail by embodiment below in conjunction with accompanying drawing.

Referring to Fig. 1, a kind of wireless carry-on microphone comprises transmitter and receiver.Microphone case is made of face-piece 1 and drain pan 2, and promptly microphone transmitter housing and receiver housing all are made up of face-piece and drain pan.Microphone body is installed on the plastic cement center 3.Plastic cement center 3 is assembled into complete machine with face-piece, drain pan.

The mechanical realization of the transmitter and receiver of the wireless carry-on microphone of present embodiment is identical, is that example specifies with wireless carry-on microphone transmitter here.Transmitter face-piece and drain pan adopt the aluminum alloy plate materials extrusion modling during making, and the drain pan of transmitter and face-piece are formed complete machine with the screw mount on the plastic cement center.The transmitter housing adopts aluminium mass shell body, and carry-on microphone case that aluminium matter is wireless can have multiple colour match scheme after anodized, and anti-oxidant, wear-resistant, impact resistance.And the plastic cement center is after electroplating, and just can conduct electricity after the drain pan assembling, can strengthen the shield effectiveness of machine integral body.

The microphone power supply adopts secondary cell, and microphone case is provided with the charging socket 4 that is connected with power supply.Cooperate wireless carry-on microphone of the present utility model that special-purpose cradle can be set, cradle can be given a plurality of wireless carry-on microphone chargings simultaneously.Charge power supply can connect the 220V AC power, also can connect the 12V DC power supply.When unconditional charging, also can in time change and use the reserve battery that carries, it can compatible multiple powering mode.

The utility model is wireless carry-on microphone, the antenna 7 quality softnesses of use, Design of length is reasonable, wears Energy and comfort, meets the bodily fuctions and learns principle, can not damage human body in the use.Antenna adopts flexible good import steel wire as conductor, and the outsourcing flexibility is PVC preferably, forms by mold injection after being equipped with gold-plated thread joint, is convenient to keep its quality softness to be convenient for carrying.

Microphone transmitter and receiver all is similar at aspects such as the power supply of mechanical realization, installation and antennas in the present embodiment.Its special feature is to have increased voice on its voicefrequency circuit to strengthen module for transmitter.Specifically, transmitter comprises power supply, the miniature electret capacitor microphone that is electrically connected with power supply, voicefrequency circuit and FM circuit, also be provided with voice on the transmitter voicefrequency circuit and strengthen module, voice strengthen module and are connected in parallel on the amplifying circuit of voicefrequency circuit, the microphone transmitter is provided with the change over switch of changing between general mode and the pattern of speech enhancement 5, and described change over switch 5 is attempted by voice to be strengthened on the module.The theory diagram of transmitter voicefrequency circuit part is referring to Fig. 4.The outline drawing of transmitter is referring to Fig. 3.

And for the receiver of this wireless carry-on microphone, its special feature is to be provided with on the described receiver volume adjustment knob 51.The receiver outline drawing is referring to Fig. 2.

Can be adjusted to according to actual conditions when using this wireless carry-on microphone transmitter needs use functional status, is pattern of speech enhancement when being allocated to "+10dB " on the transmitter change over switch 5, and following is general mode when being allocated to " 0dB ".When more weak or ambient noise is bigger when the voice signal of receiving, be allocated to pattern of speech enhancement on the change over switch, it is the change over switch closure among Fig. 4, the audio signal of audio frequency input module input, when the amplifying circuit signal amplifies, strengthen module by voice signal is promoted enhancing, exporting from the audio frequency output module at last.So not only can carry out the lifting of 10dB, can also suppress audio band noise in addition, sound more clearly is provided voice band.

And the receiver of corresponding configuration can be listened to the voice signal that transmitter sends by the volume that volume adjustment knob 51 adjustings are fit to oneself according to actual conditions.Usually revolve on the volume adjustment knob of receiver for increasing volume, backspin is for reducing volume.

In order to be fit to different environments for use, the transmitter in the utility model, receiver can have multiple wearing mode.Design has the horizontal type folder to hang 62 on the receiver shown in Figure 2, and this horizontal type folder extension 62 is convenient to the user and is taken a load off one's feet.Design has the vertical type folder to hang 61 on the wireless carry-on microphone receiver shown in Figure 3, uses when this structure is suitable for standing walking.For the ease of female consumer, can also be at the hangers that can connect lanyard wireless carry-on microphone setting, corresponding hangers is furnished with lanyard, can hang over the front by lanyard, and is not only convenient, and generous good-looking again.The user can be at any time according to the mode of wearing is selected or changed to hobby and needs voluntarily separately.

Claims

1, a kind of wireless carry-on microphone, comprise transmitter and receiver, transmitter comprises power supply, the miniature electret capacitor microphone that is electrically connected with power supply, voicefrequency circuit and FM circuit, it is characterized in that: also be provided with voice on the described transmitter voicefrequency circuit and strengthen module.

2, wireless carry-on microphone according to claim 1, it is characterized in that: described microphone transmitter is provided with the change over switch of changing between general mode and the pattern of speech enhancement (5), the amplifying circuit that described voice strengthen in module and the voicefrequency circuit is in parallel, and described change over switch (5) is attempted by voice to be strengthened on the module.

3, wireless carry-on microphone according to claim 1, it is characterized in that: microphone case all is made of face-piece (1) and drain pan (2), microphone body is installed on the plastic cement center (3), forms complete machine with the face-piece and the drain pan mount of aluminum alloy plate materials extrusion modling on the plastic cement center.

4, wireless carry-on microphone according to claim 1 is characterized in that: the microphone power supply adopts secondary cell, and described microphone case is provided with the charging socket (4) that is electrically connected with power supply.

5, according to the described wireless carry-on microphone of claim 1～4, it is characterized in that: the vertical type folder that is convenient for carrying is installed on the microphone case hangs (61) or horizontal type folder extension (62).

6, wireless carry-on microphone according to claim 5 is characterized in that: also be provided with the hangers that can connect lanyard on the described microphone.

7, wireless carry-on microphone according to claim 6 is characterized in that: as conductor, it is injection molded that the flexible good PVC of outsourcing is equipped with gold-plated thread joint by the good steel wire of flexibility for radio microphone antenna (7).