CN204733363U - The wireless converting transmission device of a kind of simple and easy microphone - Google Patents

Abstract

The utility model discloses a simple microphone wireless conversion transmission device, which comprises a transmitter for converting wired microphone audio signals into wireless audio signals, a receiver for converting wireless audio signals into wired audio signal output, the transmitter and The receivers correspond to each other. The wired signal of the wired microphone is converted into a wireless signal by the transmitter and transmitted, and the receiver receives the wireless signal and transmits it to the audio equipment connected to the receiver after processing, which can simply convert the existing wired microphone into a wireless microphone and extend the use distance, thereby overcoming the shortcomings of wired microphones limited by space. By using the device, the conversion between the wired microphone and the wireless microphone can be conveniently realized, and the existing wired microphone can be fully utilized to achieve the purpose of saving resources and adapting to demands in various situations.

Description

A simple microphone wireless conversion transmission device

technical field

The utility model relates to a wireless transmission device, in particular to a device capable of converting wired microphone audio signals into wireless audio signals and transmitting them.

Background technique

At present, the known wired microphone is directly connected to the audio equipment through a connecting wire, which is limited by the length of the connecting wire and limited in use space, and it is easy to encounter the problems of winding and wearing of the connecting wire during long-term use. However, the known wireless microphone has a complex structure, high cost of use and maintenance, and cannot be used after the power supply is exhausted. In particular, it is impossible to switch between wired microphones and wireless microphones. For users who have already purchased wired microphones, repurchasing wireless microphones will cause a waste of resources.

Utility model content

In order to solve the above problems, the purpose of this utility model is to provide a simple wireless transmission device that can conveniently convert a wired microphone into a wireless microphone, so as to solve the problem that the wired microphone is limited by space and the cost of the wireless microphone is too high. A technical issue where the microphones do not switch between each other.

The technical solution adopted by the utility model to solve its problem is:

A simple microphone wireless conversion transmission device is provided, including a transmitter for converting a wired microphone audio signal into a wireless audio signal and a receiver for converting the wireless audio signal into a wired audio signal for output, and the transmitter and the receiver are mutually Corresponding, among them,

The transmitter includes a microphone connector for connecting with the wired microphone body to obtain the audio output signal of the wired microphone, a first signal processing module, a wireless transmitting module and a first power supply module, wherein,

The microphone connector, the first signal processing module, and the wireless transmitting module are sequentially connected;

The first power supply module is respectively connected to the microphone connector, the first signal processing module and the wireless transmission module;

The receiver includes a wireless receiving module, a second signal processing module, a second power supply module and an audio equipment connector for connecting with audio equipment and outputting wired audio signals, wherein,

The wireless receiving module, the second signal processing module, and the audio equipment connector are sequentially connected,

The second power supply module is connected to the second signal processing module and the wireless receiving module respectively.

Further, the first signal processing module includes a signal amplifier and a filter, and the signal amplifier is connected to the filter;

The wireless transmitting module includes a mixer, a carrier generator, a radio frequency amplifier and a transmitting antenna, wherein the mixer is connected to the carrier generator and the radio frequency amplifier at the same time, and the radio frequency amplifier is connected to the transmitting antenna;

The first power module includes a battery, a power switch and a status indicator light used to indicate the working state of the transmitter, the battery is connected in series with the power switch, and the status indicator is connected in parallel with the power switch;

The microphone connector is connected to the signal amplifier in the first signal processing module;

The filter in the first signal processing module is connected with the mixer in the wireless transmitting module.

Further, the wireless receiving module includes a receiving antenna, a signal amplifier, and a demodulator, and the receiving antenna, signal amplifier, and demodulator are connected in sequence;

The second signal processing module includes a filter and a signal amplifier, and the filter is connected to the audio equipment connector through the signal amplifier;

The second power supply module includes a battery, a power switch and a status indicator for indicating the working state of the receiver, the battery is connected in series with the power switch, and the status indicator is connected in parallel with the power switch;

The demodulator in the wireless receiving module is connected with the filter in the second signal processing module;

The signal amplifier in the second signal processing module is connected with the audio equipment connector.

Further, the transmitter includes a transmitter housing, and a first battery box that can be used for battery replacement is provided on the transmitter housing.

Further, the receiver includes a receiver housing, on which a second battery box that can be used for battery replacement is provided.

Further, the receiver includes a receiver housing, and the audio equipment connector is directly fixed on one side of the receiver housing.

Further, one side of the receiver housing provided with the audio equipment connector is conical, and the audio equipment connector is arranged at the top of the cone.

Further, it is characterized in that: the transmitter includes a transmitter housing, and the transmitting antenna is arranged inside the transmitter housing.

Further, the receiver includes a receiver housing, and the receiving antenna is arranged inside the receiver housing.

The beneficial effect of the utility model is: the wired signal of the wired microphone is converted into a wireless signal by the transmitter and transmitted, and the wireless signal received by the receiver is processed and transmitted to the audio equipment connected to the receiver, which can simply make the existing wired microphone The microphone is converted into a wireless microphone to extend the use distance, thereby overcoming the shortcomings of wired microphones limited by space. And by installing and disassembling the transmitter and receiver, the conversion between wired microphones and wireless microphones can be easily realized, and the existing wired microphones can be fully utilized to save resources and meet the needs of various situations. In addition, the utility model has the advantages of simple structure, small volume and low cost, which can effectively reduce the use cost of buyers.

Description of drawings

Below in conjunction with accompanying drawing and example the utility model is described further.

Fig. 1 is a perspective view of a transmitter in a simple microphone wireless conversion transmission device of the present invention.

Fig. 2 is a perspective view from another angle of the transmitter in the simple microphone wireless conversion transmission device shown in Fig. 1 .

Fig. 3 is an exploded view of a transmitter of a simple microphone wireless conversion transmission device of the present invention.

Fig. 4 is a perspective view of a receiver in a simple microphone wireless conversion transmission device of the present invention.

Fig. 5 is a perspective view from another angle of the receiver in the simple microphone wireless conversion transmission device shown in Fig. 4 .

Fig. 6 is an exploded view of the receiver of a simple microphone wireless conversion transmission device of the present invention.

Fig. 7 is a circuit diagram of a transmitter of a simple microphone wireless conversion transmission device of the present invention.

Fig. 8 is a circuit diagram of a receiver of a simple microphone wireless conversion transmission device of the present invention.

Detailed ways

Referring to Fig. 1 and Fig. 2 and Fig. 3, the specific structure of the transmitter 1 of a simple microphone wireless conversion transmission device of the present invention is illustrated.

The transmitter 1 includes: the transmitter housing 1a, the microphone connector 3 for connecting the wired microphone body and obtaining the audio output signal of the wired microphone, and the power switch 4 for turning on and off the power of the transmitter 1, used to indicate that the transmitter 1 The status indicator light 5 of the working state and the first battery box 6 for installing a replaceable battery are provided on the transmitter housing 1a. By setting the first battery box 6, the working time of the transmitter 1 can be extended by replacing the battery.

The specific structure of the receiver 2 is described with reference to FIG. 4 , FIG. 5 and FIG. 6 .

The receiver 2 includes: a receiver housing 2a, an audio equipment connector 7 for connecting audio equipment and outputting audio signals, a power switch 8 for turning on and off the power of the receiver 2, and indicating the working state of the receiver 2 The status indicator light 9 and the second battery box 10 for installing a replaceable battery are provided on the receiver housing 2a. By setting the second battery box 10, the working time of the receiver 2 can be extended by replacing the battery.

The audio equipment connector 7 is directly installed on a side of the receiver housing 2a; the side of the receiver housing 2a that is provided with the audio equipment connector 7 is conical, and the audio equipment connector 7 is located at the top of the cone, so that the receiver 2 is more compact in size.

With reference to Fig. 7, the circuit of transmitter 1 comprises microphone joint 3, first signal processing module 71, wireless transmission module 72 and first power supply module 73, wherein, microphone joint 3, first signal processing module 71, wireless transmission module 72 Connection; the first power supply module 73 is respectively connected to the microphone connector 3, the first signal processing module 71 and the wireless transmission module 72;

The first information processing module 71 includes a signal amplifier 711 and a filter 712, the output end of the signal amplifier 711 is connected to the input end of the filter 712.

The wireless transmitting module 72 comprises a mixer 721, a carrier generator 724, a radio frequency amplifier 722 and a transmitting antenna 723, wherein the output of the carrier generator 724 is connected to the input of the mixer 721, and the radio frequency amplifier 722 transmits wireless signals through the transmitting antenna 723. Signal.

The first power module 73 includes a battery 731, a power switch 4 and a status indicator light 5, wherein the battery 731 is located in the first battery box 6 located on the transmitter housing 1a; the power switch 4 is connected in series to the battery 724 and connected in parallel. indicator light 5.

The first power supply module 73 is connected with the microphone connector 3, the first signal processing module 71, and the wireless transmission module 72 to provide power support therefor.

The microphone connector 3 is connected to the input end of the signal amplifier 711 in the first signal processing module 71 ; the output end of the filter 712 in the first signal processing module 71 is connected to the input end of the mixer 721 in the wireless transmission module 72 .

Referring to Fig. 8, the receiver 2 includes a wireless receiving module 81, a second signal processing module 82, a second power supply module 83 and an audio equipment connector 7, wherein the wireless receiving module 81, the second signal processing module 82, and the audio equipment connector 7 are sequentially connected, the second power supply module 83 is connected to the second information processing module 82 and the wireless receiving module 81 respectively.

Wireless receiving module 81 comprises receiving antenna 811, signal amplifier 812 and demodulator 813, wherein, signal amplifier 812 input end connects receiving antenna 811, receives the wireless signal that transmitter 1 sends by receiving antenna 811; The output end of signal amplifier 812 connects The input end of demodulator 813;

The second signal processing module 82 includes a filter 821 and a signal amplifier 822 , wherein the output end of the filter 821 is connected to the input end of the signal amplifier 822 ; the output end of the signal amplifier 822 is connected to the audio equipment through the audio equipment connector 7 .

The second power supply module 83 includes a battery 831, a power switch 8 and a status indicator light 9, wherein the battery 831 is located in the battery box 10 arranged on the receiver housing 2a; the power switch 8 is connected in series to the battery 831 and the parallel connection status indicator light 9.

The output end of the demodulator 813 of 81 in the wireless receiving module is connected to the input end of the filter 821 in the second signal processing module 82; The output end of the signal amplifier 822 in the second signal processing module 82 is connected to the audio equipment connector 7; The equipment connector 7 is connected with audio equipment and is used for outputting audio signals.

In addition, the transmitting antenna 723 and the receiving antenna 811 of the transmitter 1 and the receiver 2 are respectively hidden inside the transmitter housing 1 a and the receiver housing 2 a, thereby reducing the volume of the transmitter 1 and the receiver 2 .

The working process of the present utility model is as follows:

The transmitter 1 is connected to the wired microphone through the microphone interface, and receives the signal sent by the wired microphone while using the first power supply module 73 to supply power to the wired microphone, and converts it into a wireless signal through the wireless transmitting module 72, and further transmits the signal to the wired microphone through the transmitting antenna. The wireless signal is transmitted. After the receiver 2 receives the wireless signal sent by the transmitter 1 through the receiving antenna, it uses the second signal processing module 82 to convert the wireless signal into a wired signal, and further transmits the wired signal to the audio equipment connector 7 through the audio equipment connector 7. Audio equipment. In this way, the purpose of converting a wired microphone into a wireless microphone is realized.

The above is only a preferred embodiment of the utility model, and the utility model is not limited to the above-mentioned embodiment, as long as it achieves the technical effect of the utility model by the same means, it should belong to the protection scope of the utility model.

Claims (9)

1. A simple microphone wireless conversion transmission device, characterized in that: comprising Transmitter (1) for converting wired microphone audio signal into wireless audio signal and receiver (2) for converting wireless audio signal into wired audio signal output, transmitter (1) and receiver (2) mutually Corresponding, among them, The transmitter (1) includes a microphone connector (3), a first signal processing module (71), a wireless transmitting module (72) and a first power supply module for connecting with the wired microphone body to obtain the audio output signal of the wired microphone (73), where, The microphone connector (3), the first signal processing module (71), and the wireless transmitting module (72) are sequentially connected; The first power supply module (73) is respectively connected to the microphone connector (3), the first signal processing module (71) and the wireless transmission module (72); The receiver (2) includes a wireless receiving module (81), a second signal processing module (82), a second power supply module (83) and an audio equipment connector (7 ),in, The wireless receiving module (81), the second signal processing module (82), and the audio equipment connector (7) are sequentially connected, The second power supply module (83) is respectively connected with the second signal processing module (82) and the wireless receiving module (81). 2. A simple microphone wireless conversion transmission device according to claim 1, characterized in that: the first signal processing module (71) includes a signal amplifier (711) and a filter (712), and the signal amplifier ( 711) connected with said filter (712); The wireless transmitting module (72) includes a mixer (721), a carrier generator (724), a radio frequency amplifier (722) and a transmitting antenna (723), wherein the mixer (721) is simultaneously connected to the carrier generator device (724) and the radio frequency amplifier (722), the radio frequency amplifier (722) is connected to the transmitting antenna (723); The first power supply module (73) includes a battery (731), a power switch (4) and a status indicator light (5) used to indicate the working status of the transmitter (1). The battery (731) is connected in series with the power switch (4), and the status The indicator light (5) is connected in parallel with the power switch (4); The microphone connector (3) is connected to the signal amplifier (711) in the first signal processing module (71); The filter (712) in the first signal processing module (71) is connected to the mixer (721) in the wireless transmitting module (72). 3. A simple microphone wireless conversion transmission device according to claim 1, characterized in that: the wireless receiving module (81) includes a receiving antenna (811), a signal amplifier (812) and a demodulator (813), The receiving antenna (811), signal amplifier (812), and demodulator (813) are sequentially connected; The second signal processing module (82) includes a filter (821) and a signal amplifier (822), and the filter (821) is connected to the audio equipment connector (7) through the signal amplifier (822); The second power supply module (83) includes a battery (831), a power switch (8) and a status indicator light (9) for indicating the working status of the receiver (2). The battery (831) is connected in series with the power switch (8), and the status The indicator light (9) is connected in parallel with the power switch (8); The demodulator (813) in the wireless receiving module (81) is connected to the filter (821) in the second signal processing module (82); The signal amplifier (822) in the second signal processing module (82) is connected to the audio equipment connector (7). 4. A simple microphone wireless conversion transmission device according to claim 1, characterized in that: the transmitter (1) includes a transmitter housing (1a), and the transmitter housing (1a) is equipped with The first battery compartment (6) that can be used to replace the battery. 5. A simple microphone wireless conversion transmission device according to claim 1, characterized in that: the receiver (2) includes a receiver housing (2a), and the receiver housing (2a) is provided with Second battery compartment (10) available for battery replacement. 6. A simple microphone wireless conversion transmission device according to claim 1, characterized in that: the receiver (2) includes a receiver housing (2a), and the audio equipment connector (7) is directly fixed on the on one side of the receiver housing (2a). 7. A simple microphone wireless conversion transmission device according to claim 6, characterized in that: one side of the receiver housing (2a) provided with the audio equipment connector (7) is conical, and the The audio equipment connector (7) is located at the top of the cone. 8. A simple microphone wireless conversion transmission device according to claim 2, characterized in that: the transmitter (1) includes a transmitter housing (1a), and the transmitting antenna (723) is set on the transmitter the inside of the device housing (1a). 9. A simple microphone wireless conversion transmission device according to claim 3, characterized in that: the receiver (2) includes a receiver housing (2a), and the receiving antenna (811) is set on the receiving the inside of the device housing (2a).