CN204968055U - Wireless microphone receiver and microphone socket - Google Patents

Abstract

The utility model discloses a wireless microphone receiver and a microphone socket. The wireless microphone receiver has a body and a plug. The plug forms a grounding section, a power supply section and a signal section. When the plug is correspondingly inserted into the microphone socket, A power supply is output from the microphone socket to the power section to provide the working power required by the wireless microphone receiver. When the plug is pulled out from the microphone socket, the power supply is interrupted; the wireless microphone receiver does not need additional charging and uses dry batteries. Simply plug into this mic jack for power and normal operation.

Description

Wireless microphone receiver and microphone socket

technical field

The utility model relates to a wireless microphone receiver and a corresponding plugged microphone socket.

Background technique

Wireless microphones can be used in many different occasions with audio-visual devices, such as family KTV, school evenings, company meetings, street performances, park entertainment, etc. When using a wireless microphone, a corresponding wireless microphone receiver needs to be used together. The wireless microphone receiver usually has a plug, which can be plugged into a microphone socket of an audio-visual device. When the user holds the wireless microphone to speak or sing, the sound signal is transmitted from the wireless microphone to the wireless microphone receiver, and then the wireless microphone receiver transmits the sound signal to the audio-visual equipment.

The existing wireless microphone receivers can be roughly divided into two types according to the power supply mode, one is battery-type, and the other is rechargeable. The battery-type wireless microphone receiver is internally equipped with dry batteries to provide working power. The rechargeable wireless microphone receiver has a rechargeable battery inside, and it needs to be connected with a charging plug to charge the rechargeable battery. If the power of the rechargeable battery is insufficient, the wireless microphone receiver will lack power and cannot It receives sound signals normally, so it must be pre-charged before use. If you forget to charge first, you will not be able to use it, which is still quite inconvenient for users.

Utility model content

It can be seen that the existing wireless microphone receiver has the technical problem of requiring additional charging or using a dry battery. The utility model can overcome this technical problem, and the user does not need to charge the wireless microphone receiver or install a dry battery.

The utility model provides a wireless microphone receiver, which is characterized in that it comprises:

A body with a wireless signal receiving circuit inside, which can receive the sound signal output by the wireless microphone;

A plug protrudes from one side of the body and is connected to the wireless signal receiving circuit. The plug includes a ground segment, a power segment and a signal segment, wherein the power segment is used to transmit a power supply to the wireless signal receiver circuit to provide the working power required by the wireless microphone receiver.

The utility model provides a microphone socket correspondingly connected with the wireless microphone receiver, which is characterized in that it includes:

A socket has a plurality of terminals. When the socket is correspondingly connected to the plug of the wireless microphone receiver, one terminal is in contact with the power end of the plug to transmit a working power to the wireless microphone receiver, and the other terminal is connected to the plug The signal segments are in contact;

A control integrated circuit has a plurality of pins, one of which is connected to the one terminal of the socket to output the working power.

When the wireless microphone receiver of the present utility model is plugged into the microphone socket, the microphone socket can supply power to the wireless microphone receiver through the power supply section of the plug, so that the wireless microphone receiver can be used normally to receive the sound signal output by a wireless microphone, There is no need to arrange rechargeable batteries and dry batteries inside the wireless microphone receiver, which solves the problem of users needing additional charging or power supply, and can reduce the volume and weight of the wireless microphone receiver.

Description of drawings

Fig. 1 is a schematic diagram of the wireless microphone receiver of the present invention.

Fig. 2 is a schematic diagram of the microphone socket of the present invention.

Fig. 3 is a circuit diagram of connecting a wired microphone to the microphone socket of the present invention.

Fig. 4 is a circuit diagram of the microphone socket of the present invention connected to the wireless microphone receiver.

Explanation of reference signs

10 microphone socket 11 socket

12 control integrated circuit

20 wireless microphone receiver 21 body

211 Wireless signal receiving circuit 212 Rechargeable battery

22 connector 221 grounding section

222 power section 223 signal section

30 connector 31 grounding section

32 signal segment 100 audio and video host

detailed description

Below in conjunction with accompanying drawing, structural principle and working principle of the present utility model are specifically described:

Please refer to FIG. 1 , the utility model includes a microphone socket 10 and a wireless microphone receiver 20 .

The wireless microphone receiver 20 has a body 21 and a connector 22 for receiving an audio signal from a wireless microphone. The main body 21 is provided with a wireless signal receiving circuit 211, and the wireless signal receiving circuit 211 is responsible for receiving the sound signal from the wireless microphone. The connector 22 protrudes outward from one side of the main body 21 and is connected to the wireless signal receiving circuit 211, and includes three sections, forming a ground section 221, a power supply section 222 and a signal section 223 sequentially from the main body 21 outward, There is insulation between adjacent two segments.

Please refer to shown in Figure 2, the microphone socket 10 is set on an audio-visual host 100 that receives audio signals, such as karaoke hosts, amplifiers and other similar equipment, the microphone socket 10 can be plugged by the aforementioned wireless microphone receiver 20 to receive wireless The audio signal output by the microphone, or the connector of a wired microphone can be inserted to receive the audio signal generated by the wired microphone.

Please refer to FIG. 3 , the circuit structure of the microphone socket 10 includes a socket 11 and a control integrated circuit 12 . The socket 11 has a first terminal to a fifth terminal, wherein the first terminal is connected to a ground terminal; the second terminal is a signal input terminal, which is connected to the sound signal processing circuit of the next stage, such as an amplifier circuit; the third terminal It is a spring contact and is connected to the grounding terminal. Under normal conditions without a plug inserted into the socket 11, the third terminal and the second terminal are in contact with each other, and the second terminal is also in a grounding state; the fourth terminal is a spring contact and is connected to The ground terminal, in the normal state where no plug is inserted into the socket 11, the 4th terminal and the 5th terminal are in contact with each other; the 5th terminal is connected to a power supply (+5V), and in the normal state without a plug inserted into the socket 11, The fifth terminal is short-circuited to ground via the fourth terminal.

The control integrated circuit 12 has pins 1 to 5, a DC power supply +12V is provided on the first pin (IN), and the first pin is connected to the collector of a transistor Q4 through a resistor R32 , the emitter of the transistor Q4 is grounded, the base is connected to a voltage divider circuit formed by series connection of a resistor R31, a diode D2 and a Zener diode WZ3, and the base is also connected to the fifth terminal of the socket 11 through a diode D1; the second After the pin (OUT) is connected to the 4th pin (FB), it is connected to the 5th terminal of the socket 11 through an inductor L4; the 3rd pin (GND) is connected to the ground terminal; the 5th pin (ON/OFF ) is connected to the collector of the transistor Q4.

The microphone socket 10 can be inserted into the connector 30 of the wired microphone to receive the audio signal output by the wired microphone, wherein the connector 30 of the wired microphone has only two segments, including a ground segment 31 and a signal segment 32 . When the connector 30 is inserted, the ground segment 31 contacts the first terminal of the socket 11 and is short-circuited to the ground terminal. The second and third terminals of the socket 11 are separated, wherein the second terminal contacts the signal section 32, and the audio signal of the wired microphone is transmitted to the next-stage audio signal processing circuit for processing through the second terminal. Although the 4th and 5th terminals in the socket 11 are also separated from each other, the 5th terminal is in contact with the ground section 31 of the joint 30, that is, the base of the transistor Q4 is grounded, and the collector is at a high level to control the 5th terminal of the integrated circuit 12. The pin (ON/OFF) is high level, so the control integrated circuit 12 does not output.

Please refer to Fig. 4, when the wireless microphone receiver 20 of the present invention is inserted into the microphone socket 10, the second and third terminals of the socket 11 are separated, and the second terminal contacts the signal section 223, and the audio signal of the wired microphone is Transmit to the sound signal processing circuit of next level through this 2nd terminal and go processing; The 4th, the 5th terminal in the socket 11 are also separated, and this 5th terminal contacts the power section 222 of this connector 30, because the 5th terminal The output impedance is higher than the input impedance of the resistor R31 and the transistor Q4, so the transistor Q4 is turned on, and the fifth pin (ON/OFF) of the control integrated circuit 12 becomes low level, so that the second pin (OUT) of the control integrated circuit 12 becomes low. ) output power supply, the output power +5V is connected to the fifth terminal of the microphone socket 11, the wireless microphone receiver 20 receives power from the power supply section 222, and provides the power to the wireless signal receiving circuit 211, so that the wireless microphone receiver 20 can Works fine straight away.

After the wireless microphone receiver 20 is pulled out from the microphone socket 10, the 5th terminal of the socket 11 is in contact with the 4th terminal again, that is, the 5th terminal is grounded again, the base of the transistor Q4 turns to a low level, and the transistor Q4 does not is turned on, the control integrated circuit 12 stops outputting power.

The wireless microphone receiver 20 of the present utility model does not require additional charging or additional dry batteries, as long as it is plugged into the microphone socket 10, the microphone socket 10 can supply power to the wireless microphone receiver 20 to receive sound signals normally, which improves the user's need for additional charging. or power supply problems. And because there is no need to arrange rechargeable batteries or dry batteries in the wireless microphone receiver 20, the volume and weight of the wireless microphone receiver can also be reduced.

Of course, the utility model can also have other various embodiments, and those skilled in the art can make various corresponding changes and deformations according to the utility model without departing from the spirit and essence of the utility model, but These corresponding changes and deformations should all belong to the protection scope of the appended claims of the present utility model.

Claims (5)

1. A wireless microphone receiver, characterized in that, comprising: A body with a wireless signal receiving circuit inside, which can receive the sound signal output by the wireless microphone; A plug protrudes from one side of the body and is connected to the wireless signal receiving circuit. The plug includes a ground segment, a power segment and a signal segment, wherein the power segment is used to transmit a power supply to the wireless signal receiver circuit to provide the working power required by the wireless microphone receiver. 2. The wireless microphone receiver according to claim 1, wherein the plug extends outward from the body to form the ground segment, the power segment and the signal segment in sequence, and the ground segment and the power segment are insulated Isolation, insulation and isolation between the power supply segment and the signal segment. 3. A microphone socket correspondingly connected with the wireless microphone receiver of claim 1, characterized in that, comprising: A socket has a plurality of terminals. When the socket is correspondingly connected to the plug of the wireless microphone receiver, one terminal is in contact with the power end of the plug to transmit a working power to the wireless microphone receiver, and the other terminal is connected to the plug The signal segments are in contact; A control integrated circuit has a plurality of pins, one of which is connected to the one terminal of the socket to output the working power. 4. The microphone socket according to claim 3, wherein the socket includes a first terminal to a fifth terminal, wherein; the first terminal is connected to a ground terminal; The second terminal is a signal input terminal, when the signal end of the plug of the wireless microphone receiver is inserted into the socket, the second terminal is in contact with the signal section of the plug; The third terminal is a spring contact and is connected to the ground terminal. When the plug of the wireless microphone receiver is not inserted into the socket, the third terminal is in contact with the second terminal; when the plug is inserted into the socket, the first The 3 terminal is separated from the 2nd terminal; The 4th terminal is a spring contact and is connected to the ground terminal. When the plug of the wireless microphone receiver is not inserted into the socket, the 4th terminal is in contact with the 5th terminal; when the plug is inserted into the socket, the 4th terminal the terminal is separated from the fifth terminal; The fifth terminal is connected to the control integrated circuit. 5. The microphone jack according to claim 4, wherein the control integrated circuit includes pins 1 to 5, wherein; A DC power supply is provided on the first pin, and the first pin is connected to the collector of a transistor through a resistor, the emitter of the transistor is grounded, and the base is connected to a voltage divider circuit and the fifth terminal of the socket; After the second pin and the fourth pin are connected together, they are connected to the fifth terminal of the socket through an inductor; The third pin is connected to the ground terminal; The fifth pin is connected to the collector of the transistor.