Earphone sound mixing connector and earphone system with sound mixing function

Abstract

The utility model provides an earphone sound mixing joint and an earphone system with a sound mixing function, the earphone sound mixing joint comprises a housing, a circuit board, a USB interface, an earphone interface and an audio input joint, the housing is provided with a circuit cavity, and the circuit board is installed in the circuit cavity; a sound mixing chip is arranged on the circuit board, the USB interface, the earphone interface and the audio input connector are all electrically connected with the sound mixing chip, and the USB interface, the earphone interface and the audio input connector are all exposed out of the shell; the USB interface is used for connecting an intelligent terminal; the earphone interface is used for connecting a wired earphone with a microphone; the audio input connector is used for connecting audio equipment. The earphone system applies the earphone sound mixing connector. The earphone sound mixing connector can realize the sound mixing function, and increases the application scenes of the earphone.

Description

Technical Field

[0001] The utility model relates to the technical field of earphones. Specifically, it relates to an earphone mixing connector, and also relates to an earphone system with a mixing function applying the earphone mixing connector. Background Art

[0002] Existing wired earphones are usually connected to a smart device through an earphone connector. After receiving an audio signal, it is played through a speaker. At the same time, the earphone is also provided with a microphone for obtaining a voice signal and providing it for the sound collection of smart devices such as mobile phones. Moreover, the earphone also includes a single key or a triple key to realize functions such as controlling play, pause, and volume increase and decrease. Obviously, the functions of existing wired earphones are relatively single.

[0003] In order to improve the functional diversity of wired earphones, in one existing type of earphone, a sound card component is arranged on the earphone and connected to a smart device through an earphone connector. The smart device inputs an accompaniment music signal, and at the same time, a singing audio is input through the earphone microphone. The singing audio and the accompaniment music signal are mixed through the sound card component and then played by the earphone speaker, enabling the user to hear the mixed audio in real time. However, this method integrates the sound card component with the earphone, resulting in an increase in the weight of the earphone, and the sound card component can only be used by the current earphone, reducing the application of the earphone.

[0004] Therefore, a more optimized earphone structure needs to be considered. Content of the Utility Model

[0005] The first object of the utility model is to provide an earphone mixing connector that is convenient for increasing the application scenarios of earphones.

[0006] The second object of the utility model is to provide an earphone system with a mixing function that is convenient for increasing the application scenarios of earphones.

[0007] To achieve the above first object, the earphone mixing connector provided by the utility model includes a housing, a circuit board, a USB interface, an earphone interface, and an audio input connector. The housing is provided with a circuit cavity, and the circuit board is installed in the circuit cavity; a mixing chip is arranged on the circuit board, and the USB interface, the earphone interface, and the audio input connector are all electrically connected to the mixing chip, and the USB interface, the earphone interface, and the audio input connector are all exposed outside the housing; the USB interface is used to connect to a smart terminal; the earphone interface is used to connect a wired earphone with a microphone; the audio input connector is used to connect to an audio device.

[0008] As can be seen from the above solution, the headphone mixing adapter of the present utility model can be detachably plugged into a wired headphone through the headphone jack by setting a mixing chip, a USB interface, a headphone interface, and an audio input jack. This allows the headphone mixing adapter to be used by multiple wired headphones, improving the utilization rate of the headphone mixing adapter and enabling ordinary headphones to achieve the mixing function. At the same time, by connecting to a smart terminal using the USB interface and connecting to an audio device using the audio input jack, the audio input from the audio device and the microphone of the wired headphone can be mixed. Additionally, the mixed audio can be played through the speaker of the wired headphone or transmitted to the smart terminal through the USB interface for processing, increasing the application scenarios of the headphone.

[0009] In a further solution, an EMI filter circuit is also provided on the circuit board, and the USB interface is electrically connected to the mixing chip through the EMI filter circuit.

[0010] It can be seen from this that the USB interface is electrically connected to the mixing chip through the EMI filter circuit, which can filter the signals between the mixing chip and the USB interface and improve the quality of the audio signal.

[0011] In a further solution, a power amplifier circuit is also provided on the circuit board. The input end of the power amplifier circuit is electrically connected to the mixing chip, and the output end of the power amplifier circuit is electrically connected to the headphone interface.

[0012] It can be seen from this that the headphone mixing adapter is electrically connected to the headphone interface through the power amplifier circuit to drive the speaker of the wired headphone for playback.

[0013] In a further solution, the headphone mixing adapter further includes a USB adapter, which is plugged into the USB interface.

[0014] It can be seen from this that by setting the USB adapter to be plugged into the USB interface, the headphone mixing adapter can be connected to the interfaces of various smart devices, increasing the application scenarios.

[0015] In a further solution, the headphone mixing adapter further includes an audio input end adapter, which is plugged into the audio input jack.

[0016] It can be seen from this that by setting the audio input end adapter to be plugged into the audio input jack, it is convenient for various headphone mixing adapters to match various types of audio input jacks, increasing the application scenarios.

[0017] In a further solution, the housing includes an upper housing and a lower housing, and the upper housing and the lower housing cooperate to form a circuit cavity; the upper housing and the lower housing are detachably connected.

[0018] It can be seen from this that by setting the upper housing and the lower housing to be detachably connected, it is convenient for the disassembly and assembly of the headphone mixing adapter.

[0019] In a further solution, the headphone jack is electrically connected to the circuit board through a first circuit extension cable.

[0020] It can be seen that by setting the first circuit extension cable, the movable range of the headphone jack can be increased, facilitating the connection of the headphone plug.

[0021] In a further solution, the audio input plug is electrically connected to the circuit board through a second circuit extension cable.

[0022] It can be seen that by setting the second circuit extension cable, the movable range of the audio input plug can be increased, facilitating the connection of the audio input device.

[0023] To achieve the above second object, the headphone system with a mixing function provided by the present utility model includes a headphone mixing plug and a wired headphone; the wired headphone is provided with a headphone plug, a microphone assembly and a speaker, and both the microphone assembly and the speaker are electrically connected to the headphone plug; the headphone mixing plug includes a mixing chip, a USB interface, a headphone jack and an audio input plug, and the USB interface, the headphone jack and the audio input plug are all electrically connected to the mixing chip; the headphone plug is detachably plugged into the headphone jack.

[0024] As can be seen from the above solution, in the headphone system with a mixing function of the present utility model, by setting the mixing chip, the USB interface, the headphone jack and the audio input plug on the headphone mixing plug, the headphone plug can be detachably plugged into the wired headphone, so that the headphone mixing plug can be used by multiple wired headphones, improving the utilization rate of the headphone mixing plug, enabling ordinary headphones to also realize the mixing function. At the same time, by connecting to the smart terminal through the USB interface and connecting to the audio device through the audio input plug, the audio input from the audio device and the microphone of the wired headphone can be mixed. At the same time, the mixed audio can be played through the speaker of the wired headphone or transmitted to the smart terminal through the USB interface for processing, increasing the application scenarios of the headphones. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is an exploded view of the structure of an embodiment of the headphone system with a mixing function of the present utility model.

[0026] Figure 2 is an exploded view of the structure of the headphone mixing plug in an embodiment of the headphone system with a mixing function of the present utility model.

[0027] Figure 3 is a circuit principle block diagram of the headphone mixing plug in an embodiment of the headphone system with a mixing function of the present utility model.

[0028] The present utility model will be further described below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Embodiment of a headphone system with a mixing function:

[0030] In this embodiment, as Figure 1 shown, the headphone system with a mixing function includes a headphone mixing connector 1 and a wired headphone 2. The wired headphone 2 is provided with a headphone connector 21, a microphone assembly 22, and a speaker 23. Both the microphone assembly 22 and the speaker 23 are electrically connected to the headphone connector 21. The wired headphone 2 adopts a well-known wired headphone structure, which will not be elaborated here.

[0031] Refer to Figure 2 , the headphone mixing connector 1 includes a housing 11, a circuit board 12, a USB interface 13, a headphone interface 14, and an audio input connector 15. In this embodiment, for the convenience of disassembling and assembling the headphone mixing connector 1, the housing 11 includes an upper housing 111 and a lower housing 112. The upper housing 111 and the lower housing 112 cooperate to form a circuit cavity 113, and the circuit board 12 is installed in the circuit cavity 113. The upper housing 111 and the lower housing 112 are detachably connected. Preferably, the upper housing 111 and the lower housing 112 are detachably connected through a snap structure. The USB interface 13 is used to connect to a smart terminal, such as a computer or a mobile phone. The headphone interface 14 is used to connect the wired headphone 2. The audio input connector 15 is used to connect to an audio device, such as the audio output device of an instrument or the accompaniment audio output device, etc., for inputting accompaniment audio.

[0032] In this embodiment, the USB interface 13, the headphone interface 14, and the audio input connector 15 are all exposed outside the housing 11. The USB interface 13 is soldered on the circuit board 12. The headphone interface 14 is electrically connected to the circuit board 12 through a first circuit extension line 16, and the audio input connector 15 is electrically connected to the circuit board 12 through a second circuit extension line 17. By setting the first circuit extension line 16 and the second circuit extension line 17, the moving range of the headphone interface 14 and the audio input connector 15 can be increased, facilitating the connection of the headphone connector 21 and the connection of the audio input device. The headphone connector 21 is detachably plugged into the headphone interface 14.

[0033] Refer to Figure 3 , a mixing chip 121, an EMI filter circuit 122, and a power amplifier circuit 123 are provided on the circuit board 12. The USB interface 13 is electrically connected to the mixing chip 121 through the EMI filter circuit 122. The input end of the power amplifier circuit 123 is electrically connected to the mixing chip 121, and the output end of the power amplifier circuit 123 is electrically connected to the headphone interface 14. The USB interface 13 is electrically connected to the mixing chip 121 through the EMI filter circuit 122, which can filter the signal between the mixing chip 121 and the USB interface 13 and improve the audio signal quality. The mixing chip 121, the EMI filter circuit 122, and the power amplifier circuit 123 adopt well-known circuits, which will not be elaborated here. Preferably, the mixing chip 121 adopts a JL7018F chip, and the power amplifier circuit 123 adopts an SGM4917 chip.

[0034] As can be seen from Figure 1 the above, in this embodiment, the headphone mixing adapter 1 further includes a USB adapter 18, and the USB adapter 18 is plugged into the USB interface 13. By setting the USB adapter 18 to be plugged into the USB interface 13, the headphone mixing adapter 1 can be connected to the interfaces of various smart devices, increasing the application scenarios. The type of the USB adapter 18 can be set as needed. For example, the USB interface can be converted into a Type-C interface, an HDMI interface, a mini USB interface, or a lightning interface, etc.

[0035] In addition, the headphone mixing adapter 1 further includes an audio input end adapter 19, and the audio input end adapter 19 is plugged into the audio input connector 15. By setting the audio input end adapter 19 to be plugged into the audio input connector 15, it is convenient for various headphone mixing adapters 1 to match various types of audio input connectors 15, increasing the application scenarios. The type of the audio input end adapter 19 can be set as needed. For example, if the audio input connector 15 is a 3.5 mm plug, the audio input end adapter 19 is a 3.5 mm to 6.3 mm adapter. The headphone interface 14 can be set according to the type of the headphone connector 21. For example, when the headphone connector 21 is a 3.5 mm plug, the headphone interface 14 is a 3.5 mm socket.

[0036] When the headphone system with a mixing function of this embodiment is in use, the USB interface 13 is connected to a smart device such as a computer or a mobile phone, the headphone interface 14 is connected to the headphone connector 21, and at the same time, the audio input connector 15 can also be connected to an audio input device such as a musical instrument. When the headphone system with a mixing function is working, the mixing chip 121 can mix the audio signals input by the microphone assembly 22 and the audio input connector 15 to obtain a mixed audio signal. The mixed audio signal can be played through the speaker 23. At the same time, the mixed audio signal can also be transmitted to the smart device through the USB interface 13 for the smart device to perform recording, playing, or storage processing.

[0037] As can be seen from the above solution, the headphone system with a mixing function of the present utility model is provided with a headphone mixing adapter 1. The headphone mixing adapter 1 includes a mixing chip 121, a USB interface 13, a headphone interface 14, and an audio input connector 15. It can be detachably plugged into the wired headphone 2 by using the headphone connector 21, enabling multiple wired headphones 2 to use the headphone mixing adapter 1, improving the utilization rate of the headphone mixing adapter 1, and enabling ordinary headphones to also realize the mixing function.

[0038] It should be noted that the above is only the preferred embodiment of the present utility model, but the design concept of the utility model is not limited thereto. Any non-substantive modifications made to the present utility model using this concept also fall within the protection scope of the present utility model.

Claims

1. An earphone mixing connector, characterized in that: It includes a housing, a circuit board, a USB interface, a headphone interface, and an audio input connector. The housing is provided with a circuit cavity, and the circuit board is installed in the circuit cavity; A mixing chip is provided on the circuit board. The USB interface, the headphone interface, and the audio input connector are all electrically connected to the mixing chip, and the USB interface, the headphone interface, and the audio input connector are all exposed outside the housing; The USB interface is used to connect to a smart terminal; The headphone interface is used to connect a wired headphone with a microphone; The audio input connector is used to connect to an audio device.

2. The headphone mixing connector according to claim 1, wherein: An EMI filtering circuit is further provided on the circuit board, and the USB interface is electrically connected to the mixing chip through the EMI filtering circuit.

3. The headphone mixing connector according to claim 1, wherein: A power amplifier circuit is further provided on the circuit board. The input end of the power amplifier circuit is electrically connected to the mixing chip, and the output end of the power amplifier circuit is electrically connected to the headphone interface.

4. The headphone mixing connector according to claim 1, wherein: The headphone mixing connector further includes a USB adapter, and the USB adapter is plugged into the USB interface.

5. The headphone mixing connector according to claim 1, wherein: The headphone mixing connector further includes an audio input end adapter, and the audio input end adapter is plugged into the audio input connector.

6. The headphone mixing connector according to any one of claims 1 to 5, wherein: The housing includes an upper housing and a lower housing, and the upper housing and the lower housing cooperate to form the circuit cavity; The upper housing and the lower housing are detachably connected.

7. The headphone mixing connector according to claim 6, wherein: The headphone interface is electrically connected to the circuit board through a first circuit extension wire.

8. The headphone mixing connector according to claim 6, wherein: The audio input connector is electrically connected to the circuit board through a second circuit extension wire.

9. A headphone system with a mixing function, characterized in that: It includes a headphone mixing connector and a wired headphone; The wired headphone is provided with a headphone connector, a microphone assembly, and a speaker. The microphone assembly and the speaker are both electrically connected to the headphone connector; The headphone mixing connector adopts the headphone mixing connector according to any one of claims 1 to 8; The headphone connector is detachably plugged into the headphone interface.

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