Audio conversion device

Abstract

The utility model relates to the technical field of conversion devices, in particular to an audio conversion device. The audio conversion device comprises a first connector used for being connected with first electronic equipment and transmitting audio signals, and the first connector comprises a first left channel end; the second connector is used for being connected with second electronic equipment and transmitting audio signals, and the second connector comprises a second microphone end; the first auxiliary recognition unit is arranged between the first connector and the second microphone end, the first auxiliary recognition unit is used for assisting in recognizing whether the first connector is connected to the first electronic equipment or not, the first auxiliary recognition unit comprises a first recognition resistor, and the first end of the first recognition resistor is electrically connected with the second microphone end; the second end is electrically connected with the first left channel end. The second electronic equipment connected with the audio conversion device does not need to adopt professional recording equipment, and the audio conversion device has high use convenience.

Description

Technical Field

[0001] The utility model relates to the technical field of conversion devices, in particular to an audio conversion device. Background Art

[0002] The audio conversion device can connect two devices with mismatched interfaces and transmit audio signals from one device to another.

[0003] In actual application, people use audio conversion devices to connect electronic devices and recording devices respectively. The recording device captures the audio signal of the electronic device through the audio conversion device and records or plays the audio signal to produce an audio file.

[0004] However, existing audio conversion devices only support the transmission of audio signals, and people still need to use professional recording equipment and venues to achieve recording. They are inconvenient to carry and difficult to operate, and do not meet the current social needs for the production, shooting and live broadcast of short videos anytime and anywhere.

[0005] Therefore, the existing audio conversion devices are less convenient to use. Utility Model Content

[0006] The embodiment of the utility model provides an audio conversion device to solve the problem of low convenience in use of audio conversion devices in the prior art.

[0007] The utility model discloses an audio conversion device, comprising:

[0008] A first connector, used to connect to a first electronic device and transmit an audio signal, wherein the first connector comprises a first left channel terminal;

[0009] A second connector, used to connect to a second electronic device and transmit an audio signal, wherein the second connector includes a second microphone terminal;

[0010] A first auxiliary identification unit is provided between the first connector and the second microphone end. The first auxiliary identification unit is used to assist in identifying whether the first connector is connected to a first electronic device. The first auxiliary identification unit includes a first identification resistor. A first end of the first identification resistor is electrically connected to the second microphone end, and a second end is electrically connected to the first left channel end.

[0011] Optionally, the first connector includes a first microphone end, and the audio conversion device also includes a second auxiliary identification unit for auxiliary identification of whether the second connector is connected to a second electronic device, and the second auxiliary identification unit is arranged between the first microphone end and the second connector.

[0012] Optionally, the first connector also includes a first right channel end, and the audio conversion device also includes a first noise reduction unit and a second noise reduction unit, the first noise reduction unit is arranged between the first left channel end and the second end of the first identification resistor, and the second noise reduction unit is arranged between the first right channel end and the second microphone end.

[0013] Optionally, the first noise reduction unit includes a first resistor, a first end of the first resistor is electrically connected to the first left channel end, and a second end is electrically connected to the second end of the first identification resistor; the second noise reduction unit includes a second resistor, a first end of the second resistor is electrically connected to the first right channel end, and a second end is electrically connected to the second microphone end.

[0014] Optionally, the first connector also includes a first ground terminal, the second connector also includes a second ground terminal, the first noise reduction unit also includes a third resistor connected in series with the first resistor, and the other end of the third resistor is electrically connected to the second end of the first identification resistor, the second noise reduction unit also includes a fourth resistor connected in series with the second resistor, and the other end of the fourth resistor is electrically connected to the second microphone end, the audio conversion device also includes a first voltage difference balancing unit and a second voltage difference balancing unit, the first end of the first voltage difference balancing unit is electrically connected to the first ground terminal, and the second end is electrically connected to the series node of the first resistor and the third resistor, the first end of the second voltage difference balancing unit is electrically connected to the second ground terminal, and the second end is electrically connected to the series node of the second resistor and the fourth resistor.

[0015] Optionally, the audio conversion device further includes a noise reduction capacitor, a first end of the noise reduction capacitor is electrically connected to the second microphone end, and a second end of the noise reduction capacitor is electrically connected to the second ground end.

[0016] Optionally, the audio conversion device further includes a coupling capacitor, a first end of the coupling capacitor is electrically connected to the other end of the fourth resistor, and a second end of the coupling capacitor is electrically connected to the second microphone end.

[0017] Optionally, the second connector further includes a second left channel terminal, the second auxiliary identification unit includes a second identification resistor, a first end of the second identification resistor is electrically connected to the first microphone terminal, and a second end of the second identification resistor is electrically connected to the second left channel terminal.

[0018] Optionally, the audio conversion device also includes an insulating sleeve, the second connector also includes a second left channel end, a second right channel end, a second ground end and a shell provided with a plug-in cavity, the second microphone end, the second left channel end and the second right channel end are all arranged in the plug-in cavity, the second ground end is arranged on the cavity wall of the plug-in cavity, and the insulating sleeve is arranged in the plug-in cavity and is arranged on the outer periphery of the second microphone end, the second left channel end and the second right channel end.

[0019] The utility model also discloses an audio conversion device, comprising:

[0020] A male connector, used to connect to a first electronic device and transmit an audio signal, the male connector comprising a first left channel end;

[0021] A female connector, used to connect to a second electronic device and transmit an audio signal, the female connector comprising a second microphone terminal;

[0022] A first auxiliary identification unit is provided between the male connector and the second microphone end. The first auxiliary identification unit is used to assist in identifying whether the male connector is connected to a first electronic device. The first auxiliary identification unit includes a first identification resistor. A first end of the first identification resistor is electrically connected to the second microphone end, and a second end is electrically connected to the first left channel end.

[0023] Compared with the prior art, the beneficial effect of the audio conversion device provided by the embodiment of the utility model is that: by setting a first connector and a second connector, the first connector is used to connect a first electronic device, and the second connector is used to connect a second electronic device, the first connector includes a first left channel end, and the second connector includes a second microphone end, and by setting a first auxiliary identification unit between the first connector and the second microphone end, using the first identification resistor of the first auxiliary identification unit to assist in identifying whether the first connector is connected to the first electronic device, so that the audio conversion device can assist the connected second electronic device to identify the connection to the first electronic device through its own microphone end, thereby enabling the second electronic device to obtain the audio signal recorded or played by the first electronic device, and the second electronic device connected to the audio conversion device does not need to use professional recording equipment, reducing the constraints of equipment and venue. Therefore, the audio conversion device of the present application has high ease of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The technical solution of the utility model will be further described in detail below with reference to the accompanying drawings and embodiments, in which:

[0025] Figure 1 It is a structural block diagram of the audio conversion device provided in the first embodiment of the utility model;

[0026] Figure 2 This is a circuit diagram of an audio conversion device provided in Embodiment 1 of the present utility model;

[0027] Figure 3 It is a structural schematic diagram of the audio conversion device provided in the first embodiment of the utility model;

[0028] Figure 4This is a schematic diagram of an application scenario of the audio conversion device provided in the first embodiment of the present utility model;

[0029] Figure 5 It is a structural block diagram of the audio conversion device provided in the second embodiment of the present utility model.

[0030] The reference numerals in the figures are:

[0031] 10. first connector; 11. first microphone terminal; 12. first left channel terminal; 13. first right channel terminal; 14. first ground terminal; 20. second connector; 21. second microphone terminal; 22. second left channel terminal; 23. second right channel terminal; 24. second ground terminal; 25. housing; 251. plug-in cavity; 30. first auxiliary identification unit; 40. second auxiliary identification unit; 50. first noise reduction unit; 60. second noise reduction unit; 70. first voltage difference balancing unit; 80. second voltage difference balancing unit; 90. insulating sleeve; 100. circuit board;

[0032] 110, male connector; 112, first left channel terminal; 120, female connector; 121, second microphone terminal; 130, first auxiliary identification unit; R10, first identification resistor;

[0033] R1, first identification resistor; R2, first resistor; R3, second resistor; R4, third resistor; R5, fourth resistor; R6, fifth resistor; R7, sixth resistor; R8, second identification resistor; C1, noise reduction capacitor; C2, coupling capacitor. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Now, in conjunction with the accompanying drawings, a preferred embodiment of the present utility model is described in detail.

[0035] Embodiment 1

[0036] This embodiment provides an audio conversion device, such as Figure 1 As shown, the audio conversion device includes a first connector 10, a second connector 20 and a first auxiliary identification unit 30.

[0037] The first connector 10 is used to connect to a first electronic device and transmit an audio signal. The first electronic device may be a mobile phone, a tablet or a computer.

[0038] The second connector 20 is used to connect to a second electronic device and transmit an audio signal. The second connector 20 includes a second microphone terminal 21. The second electronic device may be a mobile phone, a tablet or a computer.

[0039] The first auxiliary identification unit 30 is disposed between the first connector 10 and the second microphone end 21 . The first auxiliary identification unit 30 is used to assist in identifying whether the first connector 10 is connected to the first electronic device.

[0040] The audio conversion device of this embodiment is provided with a first connector 10 and a second connector 20, wherein the first connector 10 is used to connect to a first electronic device, and the second connector 20 is used to connect to a second electronic device, and the second connector 20 includes a second microphone end 21. A first auxiliary identification unit 30 is provided between the first connector 10 and the second microphone end 21 to identify whether the first connector 10 is connected to the first electronic device, so that the audio conversion device can assist the connected second electronic device to identify the connection to the first electronic device through its own microphone end, thereby enabling the second electronic device to obtain the audio signal recorded or played by the first electronic device. The second electronic device connected to the audio conversion device does not need to use professional recording equipment, reducing the constraints of equipment and venue. Therefore, the audio conversion device of this application has high ease of use.

[0041] Among them, the first connector 10 can be a male connector or a female connector, and the second connector 20 can be a male connector or a female connector. The female connector can realize multi-interface conversion, such as a male to USB TYPE C interface conversion cable that matches the female connector, a male to 6.35MM connector or a Canon head connection cable that matches the female connector, to realize the conversion of multiple interfaces.

[0042] refer to Figures 1 to 3 In this embodiment, the first connector 10 includes a first microphone end 11, and the audio conversion device also includes a second auxiliary identification unit 40 for auxiliary identification of whether the second connector 20 is connected to the second electronic device, and the second auxiliary identification unit 40 is arranged between the first microphone end 11 and the second connector 20.

[0043] By setting a second auxiliary identification unit 40 between the first microphone end 11 and the second connector 20, the connected first electronic device can be assisted to access the second electronic device through its own microphone end, so that the first electronic device can obtain the audio signal recorded or played by the second electronic device. The first electronic device does not need to use professional recording equipment, and can also record or play the audio signal of the second device, reducing the constraints of equipment and venue.

[0044] Through the first auxiliary identification unit 30 and the second auxiliary identification unit 40, the first electronic device and the second electronic device connected to the audio conversion device do not need to use professional recording equipment, allowing the first electronic device and the second electronic device to perform two-way recording with the assistance of the audio conversion device, that is, the first electronic device can obtain the audio signal recorded or played by the second electronic device, and the second electronic device can also obtain the audio signal recorded or played by the first electronic device, thereby meeting the current social needs of making, shooting and live broadcasting short videos anytime and anywhere.

[0045] When using it specifically, refer to Figure 1 , Figure 3 and Figure 4 , the first connector 10 of the audio conversion device is connected to the first electronic device, and the second connector 20 is connected to the second electronic device. The second electronic device is assisted by the first auxiliary identification unit 30 to identify that it is connected to the first electronic device, and recording is started. When the first electronic device plays an audio signal or obtains an audio signal from the audio input software and transmits it to the audio conversion device, the second device can capture the audio signal to realize the recording function, or play the audio signal; the first electronic device is assisted by the second auxiliary identification unit 40 to identify that it is connected to the second electronic device, and recording is started. When the second electronic device plays an audio signal or obtains an audio signal from the audio input software and transmits it to the audio conversion device, the first device can capture the audio signal to realize the recording function, or play the audio signal. The first electronic device can be a mobile phone, a tablet or a computer, etc., and the second electronic device can be a mobile phone, a tablet or a computer, etc., that is, the audio conversion device in this embodiment can assist in realizing mutual recording and live broadcasting between mobile phones, between mobile phones and computers, between mobile phones and tablets, and between computers and tablets, and making video and audio files, which is not limited to professional recording equipment and venues, and is more convenient to use.

[0046] refer to Figures 1 to 3 In this embodiment, the first connector 10 also includes a first left channel terminal 12, and the first auxiliary identification unit 30 includes a first identification resistor R1, a first end of the first identification resistor R1 is electrically connected to the second microphone terminal 21, and a second end is electrically connected to the first left channel terminal 12.

[0047] By connecting the first identification resistor R1 between the second microphone terminal 21 and the first left channel terminal 12, the first identification resistor R1 can assist the connected second device to identify whether it is connected to the first electronic device through its own microphone terminal. Specifically, when the first connector 10 is connected to the first electronic device and when it is not connected to the first electronic device, the voltage across the first identification resistor R1 is different. The second device identifies whether the first connector 10 is connected to the first electronic device through the voltage change across the first identification resistor R1, and then starts recording after connecting to the first electronic device to capture the audio signal.

[0048] refer to Figures 1 to 3 In this embodiment, the first connector 10 also includes a first right channel terminal 13, and the audio conversion device also includes a first noise reduction unit 50 and a second noise reduction unit 60. The first noise reduction unit 50 is arranged between the first left channel terminal 12 and the second end of the first identification resistor R1, and the second noise reduction unit 60 is arranged between the first right channel terminal 13 and the second microphone terminal 21.

[0049] Since the signal voltages of the first left channel end 12 and the first right channel end 13 are unstable, by providing the first noise reduction unit 50 and the second noise reduction unit 60, the signals of the two channel ends can be stabilized, the noise of the transmitted audio signal can be reduced, and the sound quality can be improved.

[0050] Specifically, refer to Figure 2 In this embodiment, the first noise reduction unit 50 includes a first resistor R2, a first end of the first resistor R2 is electrically connected to the first left channel end 12, and a second end is electrically connected to the second end of the first identification resistor R1, and the second noise reduction unit 60 includes a second resistor R3, a first end of the second resistor R3 is electrically connected to the first right channel end 13, and a second end is electrically connected to the second microphone end 21.

[0051] The first resistor R2 and the second resistor R3 are used to stabilize the signal voltages of the first left channel terminal 12 and the first right channel terminal 13 , respectively, and reduce the noise of the audio signals transmitted by the first left channel terminal 12 and the first right channel terminal 13 .

[0052] In other embodiments, the first noise reduction unit 50 and the second noise reduction unit 60 can also be a plurality of resistors connected in series or in parallel. Taking the first noise reduction unit 50 as an example, after the plurality of resistors are connected in series, the first end is electrically connected to the first left channel end 12, and the second end is electrically connected to the second end of the first identification resistor R1; after the plurality of resistors are connected in parallel, the first parallel node is electrically connected to the first left channel end 12, and the second parallel node is electrically connected to the second end of the first identification resistor R1, which can also stabilize the signal voltage of the audio signal and achieve noise reduction.

[0053] Furthermore, in the present embodiment, the first connector 10 further includes a first ground terminal 14, the second connector 20 further includes a second ground terminal 24, the first noise reduction unit 50 further includes a third resistor R4 connected in series with the first resistor R2, the other end of the third resistor R4 is electrically connected to the second end of the first identification resistor R1, the second noise reduction unit 60 further includes a fourth resistor R5 connected in series with the second resistor R3, the other end of the fourth resistor R5 is electrically connected to the second microphone terminal 21, the audio conversion device further includes a first voltage difference balancing unit 70 and a second voltage difference balancing unit 80, the first end of the first voltage difference balancing unit 70 is electrically connected to the first ground terminal 14, and the second end is electrically connected to the series node of the first resistor R2 and the third resistor R4, the first end of the second voltage difference balancing unit 80 is electrically connected to the second ground terminal 24, and the second end is electrically connected to the series node of the second resistor R3 and the fourth resistor R5.

[0054] Since there is a voltage difference between the power supply voltage and the signal voltage, by setting a first voltage difference balancing unit 70 and a second voltage difference balancing unit 80, and connecting the first voltage difference balancing unit 70 between the series node of the first resistor R2 and the second resistor R3 and the first ground terminal 14, and connecting the second voltage difference balancing unit 80 between the series node of the second resistor R3 and the fourth resistor R5 and the second ground terminal 24, the existing voltage difference can be balanced, the noise can be balanced, the audio signal can be stabilized, noise can be reduced, and the sound quality can be clear.

[0055] Specifically, refer to Figure 2 The first voltage difference balancing unit 70 includes a fifth resistor R6, a first end of the fifth resistor R6 is electrically connected to the first ground terminal 14, and a second end is electrically connected to the series node of the first resistor R2 and the second resistor R3. The second voltage difference balancing unit 80 includes a sixth resistor R7, a first end of the sixth resistor R7 is electrically connected to the second ground terminal 24, and a second end is electrically connected to the series node of the second resistor R3 and the fourth resistor R5.

[0056] The fifth resistor R6 and the sixth resistor R7 can balance the voltage difference between the power supply voltage and the signal voltage, balance the noise, achieve the stability of the audio signal, realize noise reduction, and make the sound quality clear.

[0057] In other embodiments, the first voltage difference balancing unit 70 and the second voltage difference balancing unit 80 may also include multiple resistors connected in series or in parallel, respectively. Taking the first voltage difference balancing unit 70 including multiple resistors connected in series as an example, after the multiple resistors are connected in series, the first end is electrically connected to the first ground terminal 14, and the second end is electrically connected to the series node of the first resistor R2 and the second resistor R3, or the first voltage difference balancing unit 70 includes multiple resistors connected in parallel. After the multiple resistors are connected in parallel, the first parallel node is electrically connected to the first ground terminal 14, and the second parallel node is electrically connected to the series node of the first resistor R2 and the second resistor R3. Similarly, the voltage difference between the power supply voltage and the signal voltage can be balanced, the noise can be balanced, the audio signal can be stabilized, noise can be reduced, and the sound quality can be clear.

[0058] Further, refer to Figure 1 and Figure 2 The audio conversion device further includes a noise reduction capacitor C1 , a first end of the noise reduction capacitor C1 is electrically connected to the second microphone end 21 , and a second end of the noise reduction capacitor C1 is electrically connected to the second ground end 24 .

[0059] By arranging a noise reduction capacitor C1 between the second microphone terminal 21 and the second ground terminal 24, it is possible to filter out unnecessary AC components in the DC power supply, smooth the DC power, achieve signal stability, and realize noise reduction.

[0060] In this embodiment, reference Figure 2 The audio conversion device further includes a coupling capacitor C2, a first end of the coupling capacitor C2 is electrically connected to the other end of the fourth resistor R5, and a second end of the coupling capacitor C2 is electrically connected to the second microphone end 21.

[0061] The coupling capacitor C2 can couple and transmit the audio signal of the first electronic device connected to the first connector 10 to the second electronic device connected to the second connector 20 .

[0062] In this embodiment, reference Figure 2 The second connector 20 also includes a second left channel terminal 22 , and the second auxiliary identification unit 40 includes a second identification resistor R8 , a first end of the second identification resistor R8 is electrically connected to the first microphone terminal 11 , and a second end of the second identification resistor R8 is electrically connected to the second left channel terminal 22 .

[0063] By connecting the second identification resistor R8 between the first microphone terminal 11 and the second left channel terminal 22, the second identification resistor R8 can assist the connected first device to identify whether the second electronic device is connected through its microphone terminal. Specifically, when the second connector 20 is connected to the second electronic device and when it is not connected to the second electronic device, the voltage across the second identification resistor R8 is different. The first device identifies whether the second connector 20 is connected to the second electronic device through the voltage change across the second identification resistor R8, and then starts recording to capture the audio signal.

[0064] In other embodiments, the second auxiliary identification unit 40 may also include a plurality of resistors connected in parallel to assist the first electronic device connected to the first connector 10 in identifying whether the second connector 20 is connected to the second electronic device.

[0065] In this embodiment, other implementation circuits and effects of the audio conversion device for assisting the second electronic device in obtaining, recording or playing the audio signal of the first electronic device may be the same as the implementation circuits and effects of assisting the first electronic device in obtaining, recording or playing the audio signal of the second electronic device, and are not elaborated here.

[0066] refer to Figure 3 In this embodiment, the audio conversion device also includes an insulating sleeve 90, the second connector 20 also includes a second left channel terminal 22, a second right channel terminal 23, a second ground terminal 24 and a shell 25 provided with a plug-in cavity 251, the second microphone terminal 21, the second left channel terminal 22 and the second right channel terminal 23 are all arranged in the plug-in cavity 251, the second ground terminal 24 is arranged on the cavity wall of the plug-in cavity 251, and the insulating sleeve 90 is arranged in the plug-in cavity 251 and is sleeved on the outer periphery of the second microphone terminal 21, the second left channel terminal 22 and the second right channel terminal 23.

[0067] By providing an insulating sleeve 90, which is sleeved on the outer periphery of the second microphone terminal 21, the second left channel terminal 22 and the second right channel terminal 23, the second microphone terminal 21, the second left channel terminal 22 and the second right channel terminal 23 are separated from the second ground terminal 24. When the second connector 20 is connected to the second electronic device, the second microphone terminal 21, the second left channel terminal 22 and the second right channel terminal 23 are not likely to contact with the second ground terminal 24 and cause a short circuit, thereby reducing the possibility of noise generation and improving the sound quality of the audio signal.

[0068] The material of the insulating sleeve 90 can be PVE (polyvinyl ethyl ether), PE (polyethylene), rubber, etc.

[0069] In this embodiment, reference Figure 2 and Figure 3 The audio conversion device also includes a circuit board 100, a first auxiliary identification unit 30, a second auxiliary identification unit 40, a first noise reduction unit 50, a second noise reduction unit 60, a first voltage difference balance unit 70, a second voltage difference balance unit 80, a noise reduction capacitor C1 and a coupling capacitor C2 are all arranged on the circuit board 100, and the circuit board provides a carrier for related components of the circuit.

[0070] Embodiment 2

[0071] This embodiment provides an audio conversion device. Figure 5 The audio conversion device of this embodiment includes a male connector 110 , a female connector 120 and a first auxiliary identification unit 130 .

[0072] The male connector 110 is used to connect to a first electronic device and transmit an audio signal. The male connector 110 includes a first left channel terminal 112. The first electronic device may be a mobile phone, a tablet, or a computer.

[0073] The female connector 120 is used to connect to a second electronic device and transmit an audio signal. The female connector 120 includes a second microphone terminal 121. The second electronic device may be a mobile phone, a tablet, or a computer. The female connector 120 can realize multi-interface conversion, such as a male-to-USB TYPE C interface conversion cable that matches the female connector 120, a male-to-6.35MM connector or a XLR cable that matches the female connector 120, to realize the conversion of multiple interfaces.

[0074] The first auxiliary identification unit 130 is arranged between the male connector 110 and the second microphone end 121. The first auxiliary identification unit 130 is used to auxiliary identify whether the male connector 110 is connected to the first electronic device. The first auxiliary identification unit 130 includes a first identification resistor R10. The first end of the first identification resistor R10 is electrically connected to the second microphone end 121, and the second end is electrically connected to the first left channel end 112.

[0075] The audio conversion device of this embodiment is provided with a male connector 110 and a female connector 120, wherein the male connector 110 is used to connect to a first electronic device, and the female connector 120 is used to connect to a second electronic device, wherein the male connector 110 includes a first left channel terminal 112, and the female connector 120 includes a second microphone terminal 121. A first auxiliary identification unit 130 is provided between the male connector 110 and the second microphone terminal 121, and a first identification resistor R10 of the first auxiliary identification unit 130 is used to assist in identifying whether the male connector 110 is connected to the first electronic device, so that the audio conversion device can assist the connected second electronic device to identify the connection to the first electronic device through its own microphone terminal, thereby enabling the second electronic device to obtain the audio signal recorded or played by the first electronic device. The second electronic device connected to the audio conversion device does not need to use professional recording equipment, thereby reducing the constraints of equipment and venue. Therefore, the audio conversion device of this application has high ease of use.

[0076] The difference between this embodiment and the first embodiment is that the first connector of the audio conversion device in this embodiment specifically adopts a male connector 110, and the second connector in this embodiment specifically adopts a female connector 120. Other implementation circuits and effects are the same as those in the first embodiment and will not be repeated here.

[0077] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present utility model rather than to limit it. For those skilled in the art, the technical solutions described in the above embodiments can be modified, or some of the technical features therein can be replaced by equivalents; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present utility model.

Claims

1. An audio conversion device, characterized in that: include: A first connector, used to connect to a first electronic device and transmit an audio signal, wherein the first connector comprises a first left channel terminal; A second connector, used to connect to a second electronic device and transmit an audio signal, wherein the second connector includes a second microphone terminal; A first auxiliary identification unit is provided between the first connector and the second microphone end. The first auxiliary identification unit is used to assist in identifying whether the first connector is connected to a first electronic device. The first auxiliary identification unit includes a first identification resistor. A first end of the first identification resistor is electrically connected to the second microphone end, and a second end is electrically connected to the first left channel end.

2. The audio conversion device according to claim 1, characterized in that: The first connector includes a first microphone end, and the audio conversion device also includes a second auxiliary identification unit for auxiliary identification of whether the second connector is connected to a second electronic device, and the second auxiliary identification unit is arranged between the first microphone end and the second connector.

3. The audio conversion device according to claim 1 or 2, characterized in that: The first connector also includes a first right channel end, and the audio conversion device also includes a first noise reduction unit and a second noise reduction unit, the first noise reduction unit is arranged between the first left channel end and the second end of the first identification resistor, and the second noise reduction unit is arranged between the first right channel end and the second microphone end.

4. The audio conversion device according to claim 3, characterized in that: The first noise reduction unit includes a first resistor, a first end of the first resistor is electrically connected to the first left channel end, and a second end is electrically connected to the second end of the first identification resistor. The second noise reduction unit includes a second resistor, a first end of the second resistor is electrically connected to the first right channel end, and a second end is electrically connected to the second microphone end.

5. The audio conversion device according to claim 4, characterized in that: The first connector also includes a first ground terminal, the second connector also includes a second ground terminal, the first noise reduction unit also includes a third resistor connected in series with the first resistor, and the other end of the third resistor is electrically connected to the second end of the first identification resistor, the second noise reduction unit also includes a fourth resistor connected in series with the second resistor, and the other end of the fourth resistor is electrically connected to the second microphone end, the audio conversion device also includes a first voltage difference balancing unit and a second voltage difference balancing unit, the first end of the first voltage difference balancing unit is electrically connected to the first ground terminal, and the second end is electrically connected to the series node of the first resistor and the third resistor, the first end of the second voltage difference balancing unit is electrically connected to the second ground terminal, and the second end is electrically connected to the series node of the second resistor and the fourth resistor.

6. The audio conversion device according to claim 5, characterized in that: The audio conversion device also includes a noise reduction capacitor, a first end of the noise reduction capacitor is electrically connected to the second microphone end, and a second end of the noise reduction capacitor is electrically connected to the second ground end.

7. The audio conversion device according to claim 5, characterized in that: The audio conversion device also includes a coupling capacitor, a first end of the coupling capacitor is electrically connected to the other end of the fourth resistor, and a second end of the coupling capacitor is electrically connected to the second microphone end.

8. The audio conversion device according to claim 2, characterized in that: The second connector further includes a second left channel terminal, the second auxiliary identification unit includes a second identification resistor, a first end of the second identification resistor is electrically connected to the first microphone terminal, and a second end of the second identification resistor is electrically connected to the second left channel terminal.

9. The audio conversion device according to claim 1, characterized in that: The audio conversion device also includes an insulating sleeve, the second connector also includes a second left channel end, a second right channel end, a second ground end and a shell with a plug-in cavity, the second microphone end, the second left channel end and the second right channel end are all arranged in the plug-in cavity, the second ground end is arranged on the cavity wall of the plug-in cavity, and the insulating sleeve is arranged in the plug-in cavity and is sleeved on the outer periphery of the second microphone end, the second left channel end and the second right channel end.

10. An audio conversion device, characterized in that: include: A male connector, used to connect to a first electronic device and transmit an audio signal, the male connector comprising a first left channel end; A female connector, used to connect to a second electronic device and transmit an audio signal, the female connector comprising a second microphone terminal; A first auxiliary identification unit is arranged between the male connector and the second microphone end. The first auxiliary identification unit is used to assist in identifying whether the male connector is connected to a first electronic device. The first auxiliary identification unit includes a first identification resistor. A first end of the first identification resistor is electrically connected to the second microphone end, and a second end is electrically connected to the first left channel end.

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