WO2017210983A1

WO2017210983A1 - Earpiece circuit and terminal apparatus

Info

Publication number: WO2017210983A1
Application number: PCT/CN2016/093088
Authority: WO
Inventors: 房稳
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-06-08
Filing date: 2016-08-03
Publication date: 2017-12-14
Also published as: CN205847496U

Abstract

An earpiece circuit and a terminal apparatus. The earpiece circuit comprises: a recharging device (101), a power consuming device (103), and an earpiece plug (107). The recharging device (101) and the power consuming device (103) are both electrically connected to the earpiece plug (107). The earpiece circuit implements simultaneous operations of power recharge and audio playback.

Description

Earphone circuit structure and terminal device

Technical field

This document relates to, but is not limited to, the field of intelligent terminal technologies, and in particular, to a headset circuit structure and a terminal device.

Background technique

At present, the four-stage 3.5 mm (mm) headphone jack has been universalized, and with the popularity of smart terminals, smart headphones have gradually entered the market. The earphone plug is divided into a three-stage plug and a four-stage plug, wherein the three-stage plug is a plug of a microphone without a microphone function, and the four-stage plug is a plug of a microphone-enabled earphone.

No matter whether it is a three-stage earphone or a four-segment earphone, it does not have a charge and discharge function. If the audio transmission line is used as the power supply, the power transmission cannot be performed during the listening process, and the power supply state and the audio state may be disordered, which may affect the normal use of the earphone.

Summary of the invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

The embodiment of the invention provides a headphone circuit structure and a terminal device, which can implement simultaneous power supply and audio.

An embodiment of the present invention provides a headset circuit structure, including: a charging and discharging device, a power device, and an earphone plug; wherein

The charge and discharge device and the powered device are both electrically connected to the earphone plug.

Optionally, the earphone plug includes: a charging contact, a left channel contact, a right channel contact, a microphone contact, and a ground contact; wherein

Between the charging contact and the left channel contact, between the left channel contact and the right channel contact, between the right channel contact and the microphone contact, and An insulating ring is disposed between the microphone contact and the ground contact.

Optionally, the charging contact is connected to a charging line, and the left channel contact is connected to the left channel a line, the right channel contact is connected to the right channel line, the microphone contact is connected to the microphone line, and the ground contact is connected to a ground line.

Optionally, one end of the charging and discharging device is connected to the charging contact through the charging line, and the other end of the charging and discharging device is connected to the grounding contact through the grounding wire.

Optionally, one end of the electric device is connected to the charging contact through the charging line, and the other end of the electric device is connected to the grounding contact through the grounding wire.

Optionally, the foregoing earphone circuit structure further includes: a control signal generating device;

One end of the control signal generating device is connected to the charging and discharging device, and the other end of the control signal generating device is connected to the earphone plug through the microphone wire.

Optionally, the charging and discharging device includes: a control circuit, a buck-boost circuit, and a storage battery; wherein

The control circuit and the buck-boost circuit are both connected to the storage battery;

The control circuit is further connected to the control signal generating device and the buck-boost circuit;

The buck-boost circuit is connected to the earphone plug.

Optionally, the electrical device includes: a protection circuit and a power circuit; wherein

The protection circuit is connected to the earphone plug;

The electrical circuit is coupled to the protection circuit.

The embodiment of the invention further provides a terminal device, which comprises the above earphone circuit structure.

Optionally, the terminal device further includes: a headset interface, a terminal control signal generating device, and a terminal battery; wherein

The earphone interface and the terminal control signal generating device are both connected to the terminal battery;

The earphone interface is connected to the terminal control signal generating device;

The earphone plug is inserted into the earphone interface.

Compared with the related art, the technical solution provided by the embodiment of the present invention includes: a charging and discharging device, a power device, a microphone, a left earpiece, a right earpiece, and a headphone plug; the microphone is connected to the earphone plug through a microphone wire; the left earpiece passes through the left The channel line is connected to the earphone plug; the right earpiece is connected to the earphone plug through the right channel line; the charging and discharging device and the electric device are electrically connected to the earphone plug. This hair The earphone circuit structure of the embodiment achieves simultaneous use of a charge and discharge state and an audio state.

The beneficial effects of the embodiments of the present invention include: in the above solution, by providing a charging contact on the earphone plug and correspondingly connecting a charging and discharging device through a charging line, the earphone circuit structure can realize charging to the terminal device side, and can also Power is supplied to other devices in the headphone circuit structure and does not affect the audio state of the headphone circuit structure. At the same time, the terminal device side can also charge the earphone circuit structure. The scheme can realize the simultaneous charging and discharging state and the audio state.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF abstract

1 is a circuit diagram showing the structure of an earphone circuit according to an embodiment of the present invention;

2 is a schematic view showing the structure of an earphone according to an embodiment of the present invention;

Figure 3 is a schematic view showing an earphone plug of an embodiment of the present invention;

Figure 4 shows a schematic view of a four-segment earphone plug;

Fig. 5 is a circuit diagram showing a terminal device of an embodiment of the present invention.

Description of the reference signs:

101, charging and discharging device; 102, control signal generating device; 103, power device; 104, microphone; 105, left earpiece; 106, right earpiece; 107, earphone plug;

1011, control circuit; 1012, buck-boost circuit; 1013, storage battery;

1031, a protection circuit; 1032, a power circuit;

1071, charging contact; 1072, left channel contact; 1073, right channel contact; 1074, microphone contact; 1075, ground contact; 1076, insulating ring;

201, a headphone interface; 202, a terminal control signal generating device; 203, a terminal battery.

Embodiments of the invention

Embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

As shown in FIG. 1 and FIG. 2, an embodiment of the present invention provides a headset circuit structure, including: a charging and discharging device 101, a powering device 103, and an earphone plug 107; wherein the charging and discharging device 101 and the powering device The device 103 is electrically connected to the earphone plug 107.

It should be noted that the earphone circuit structure of the embodiment of the present invention may further include: part or all of the microphone 104, the left earpiece 105, and the right earpiece 106, for example, including only the microphone 104 and the left earpiece 105, or only the left earpiece 105. And the right earpiece 106.

In this embodiment, by providing a charging and discharging device 101, on the one hand, it is possible to supply power to other devices in the earphone circuit structure, or to charge the terminal device connected thereto, and on the other hand, to charge and discharge through the terminal device. The device is charged. The charge and discharge state and the audio state of the earphone circuit structure can be performed simultaneously without affecting each other.

Optionally, as shown in FIG. 3, the earphone plug 107 includes: a charging contact 1071 that connects the charging line, a left channel contact 1072 that connects the left channel line, and a right channel contact 1073 that connects the right channel line. Connecting the microphone contact 1074 of the microphone line and the ground contact 1075 connecting the ground wire, and between the charging contact 1071 and the left channel contact 1072, between the left channel contact 1072 and the right channel contact 1073, An insulating ring 1076 is disposed between the right channel contact 1073 and the microphone contact 1074 and between the microphone contact 1074 and the ground contact 1075.

The charging contact 1071 is connected to a charging line, the left channel contact 1072 is connected to the left channel line, the right channel contact 1073 is connected to the right channel line, the microphone contact 1074 is connected to the microphone line, and the grounding contact 1075 is connected to a grounding line.

The earphone plug 107 of this embodiment adds an insulating ring and a charging contact 1071 to the idle end of the left channel contact 1072 as compared to the four-segment earphone plug of FIG. The charging contact 1071 is connected to a charging line in the earphone circuit structure. The charging line (charging line and grounding line) is connected to the charging and discharging device 101, or the charging and discharging circuit is externally connected directly through the charging line, so that the earphone circuit structure has a charging and discharging function. In addition, it is also possible to increase the setting of the charging contact on the existing earphone plug, and instead use one of the left channel contact or the right channel contact as the charging line.

Alternatively, one end of the charging and discharging device 101 is connected to the charging contact 1071 through a charging wire, and the other end of the charging and discharging device 101 is connected to the grounding contact 1075 through a grounding wire. One end of the electric device 103 is connected to the charging contact 1071 through a charging wire, and the other end of the electric device 103 is connected to the grounding contact 1075 through a grounding wire.

In this embodiment, the charging and discharging device and the electric device are separately connected to the charging circuit, and can When the charging and discharging device is in the discharging state, the electric device can obtain the voltage from the charging device; when the charging and discharging device is in the discharging state, the electric device can obtain the voltage at the terminal device connected to the earphone circuit structure.

Optionally, the earphone circuit structure further includes: a control signal generating device 102; one end of the control signal generating device 102 is connected to the charging and discharging device 101, and the other end of the control signal generating device 102 is connected to the earphone plug 107 through a microphone wire.

In this embodiment, the control signal generating means 102 may be in the form of a button or a slider, and is switchable between a charge and discharge mode and an audio mode. For example, when the control signal generating means 102 transmits the signal A which can be distinguished from the voice signal, on the one hand, the charging and discharging means 101 in the earphone circuit structure enters the discharging state according to the signal A, and the terminal device enters the charging state according to the signal A, so that the earphone The side can be charged to the terminal device side; on the other hand, the charging and discharging device can directly supply power to the power device 103. When the control signal generating device 102 transmits the signal B, on the one hand, the charging and discharging device 101 enters the charging state according to the signal B, and the terminal device enters the discharging state according to the signal B, so that the terminal device side can charge to the earphone side; The terminal device supplies power to the powered device 103. When the control signal generating means 102 transmits a voice signal, the microphone can enter a voice state. The earphone circuit structure in the solution realizes its own power storage function, a function of supplying power to other devices, and a function of charging to external power devices. The charge and discharge state and the audio state of the earphone circuit structure can be performed simultaneously without affecting each other.

Optionally, the charging and discharging device 101 includes: a control circuit 1011, a buck-boost circuit 1012, and a storage battery 1013; wherein the control circuit 1011 and the buck-boost circuit 1012 are both connected to the storage battery 1013; the control circuit 1011 is also connected The control signal generating means 102 and the step-up and step-down circuit 1012 are connected to the earphone plug 107.

Optionally, the first terminal of the control circuit 1011 is connected to the first terminal of the power storage battery, the second terminal of the control circuit 1011 is connected to the first terminal of the control signal generating device 102, and the third terminal of the control circuit 1011 is connected. To the second terminal of the buck-boost circuit 1012. The first terminal of the step-up and step-down circuit 1012 is connected to the second terminal of the battery 710, and the third terminal of the step-up and step-down circuit 1012 is connected to the earphone plug 107 via a charging line, and the fourth terminal of the step-up and step-down circuit 1012 passes. The ground wire is connected to the earphone plug 107.

In this embodiment, the storage battery 1013 is used to store electrical energy, that is, the charging and discharging device 101 is placed In the electrical state, electrical energy is supplied; when the charging and discharging device 101 is in a charged state, electrical energy is stored. The control circuit 1011 is arranged to sample the amount of electric power of the electric storage battery 1013, and to control the buck-boost circuit 1012 to switch between charging or discharging modes in accordance with a charging or discharging signal transmitted from the control signal generating means 102. The control circuit 1011 corresponds to an abnormal situation. For example, when the storage battery 1013 is severely heated, and the voltage is over-protected, the corresponding cut-off protection operation can be performed.

The step-up and step-down circuit 1012 is configured to charge the external high voltage to a low voltage by the step-down circuit in the charging state, and to discharge the low voltage to the high voltage by the boosting circuit in the discharging state. For example, the step-up and step-down circuit 1012 performs voltage detection and charge and discharge control by a controller. In the charging state, the external high voltage (for example, 5 volt (V) voltage) is reduced to a low voltage (for example, 4.2 V voltage) by a step-down circuit (inductor coil) to be charged, and when the voltage of the storage battery 1013 reaches 4.2. Stop charging when V. In the discharge state, the voltage is raised to 5 V by the booster circuit to discharge (powering the terminal device or the electric device), and when the amount of the battery is low to a protection value (for example, 3 V), the discharge is terminated. In addition, the indicator can be used to detect the power of the storage battery to control the display. For example, when the first light is on, the battery is less than 3.5V, and when the second light is on, the battery is between 3.5V and 3.7V. When the third light is on, the third light is on. Indicates that the power is between 3.7V and 3.9V. When the fourth light is on, it indicates that the power is greater than 3.9V.

Optionally, the electrical device 103 includes: a protection circuit 1031 and a power consumption circuit 1032;

The protection circuit 1031 is connected to the earphone plug 107; the electrical circuit 1032 is connected to the protection circuit 1031.

Optionally, the first terminal of the protection circuit 1031 is connected to the earphone plug 107 through a charging line, and the second terminal of the protection circuit 1031 is connected to the earphone plug 107 through a grounding wire, and the third terminal and the fourth terminal of the protection circuit 1031 are both Connected to the power circuit 1032.

In this embodiment, before the charging circuit 1032 obtains the charging and discharging voltage, a protection circuit 1031 is provided, and the protection circuit 1031 can convert the charging and discharging voltage so as not to be damaged when the charging/discharging voltage is inconsistent with the operating voltage of the power circuit 1032. Electrical circuit 1032. The protection circuit 1031 and the power consumption circuit 1032 are directly connected to the charging line and the output end of the charging and discharging device 101 (the first terminal and the second terminal of the charging and discharging device), and it is ensured that the charging and discharging device 101 is in a discharging state. The electric device 103 can obtain a stable voltage from the output end of the charging and discharging device 101; when the charging and discharging device 101 is in a charging state, the electric device 103 can obtain a stable voltage from the charging line.

As shown in FIG. 5, an embodiment of the present invention provides a terminal device, including the foregoing earphone circuit structure. The terminal device further includes: a headphone interface 201, a terminal control signal generating device 202, and a terminal battery 203; wherein the earphone interface 201 and the terminal control signal generating device 202 are both connected to the terminal battery 203; the earphone interface 201 and the terminal control signal generating device 202 is connected; the earphone plug 107 is inserted into the earphone interface 201.

In this embodiment, the circuit connection between the earphone circuit structure and the terminal device is realized by inserting the earphone plug 107 into the earphone interface 201. The terminal control signal generating means 202 controls the terminal battery 203 to charge the earphone side according to the charging signal transmitted by the control signal generating means 102 in the earphone circuit configuration; and controls the terminal according to the discharge signal transmitted by the control signal generating means 102 in the earphone circuit configuration. The battery 203 is charged through the earphone side.

In the above solution, by providing a charging contact 1071 on the earphone plug 107 and correspondingly connecting a charging and discharging device 101 through a charging line, the earphone circuit structure can realize charging to the terminal device side, and can also be in the earphone circuit structure. Other devices are powered and do not affect the audio state of the headphone circuit structure. At the same time, the terminal device side can also charge the earphone circuit structure. The scheme can realize the simultaneous charging and discharging state and the audio state.

The above is an alternative embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. These improvements and retouchings are also Within the scope of protection of the present invention.

The embodiments disclosed in the present application are as described above, but the descriptions are only for the purpose of understanding the present application, and are not intended to limit the present application, such as the specific implementation method in the embodiments of the present invention. Any modifications and changes in the form and details of the embodiments may be made by those skilled in the art without departing from the spirit and scope of the disclosure. The scope defined by the appended claims shall prevail.

Industrial applicability

The above technical solution realizes simultaneous use of a charge and discharge state and an audio state.

Claims

An earphone circuit structure comprising: a charging and discharging device (101), a power generating device (103), and an earphone plug (107); wherein

The charge and discharge device (101) and the power device (103) are both electrically connected to the earphone plug (107).
The earphone circuit structure according to claim 1, wherein the earphone plug (107) comprises: a charging contact (1071), a left channel contact (1072), a right channel contact (1073), and a microphone contact. (1074) and ground contact (1075);

Between the charging contact (1071) and the left channel contact (1072), between the left channel contact (1072) and the right channel contact (1073), the right sound An insulating ring (1076) is disposed between the track contact (1073) and the microphone contact (1074) and between the microphone contact (1074) and the ground contact (1075).
The earphone circuit structure according to claim 2, wherein said charging contact (1071) is connected to a charging line, said left channel contact (1072) is connected to said left channel line, said right channel touch A point (1073) is connected to the right channel line, the microphone contact (1074) is connected to the microphone line, and the ground contact (1075) is connected to a ground line.
The earphone circuit structure according to claim 3, wherein one end of said charge and discharge device (101) is connected to said charging contact (1071) through said charging line, and the other end of said charging and discharging device (101) Connected to the ground contact (1075) by the ground line.
The earphone circuit structure according to claim 3, wherein one end of said electric device (103) is connected to said charging contact (1071) through said charging line, and the other end of said electric device (103) Connected to the ground contact (1075) by the ground line.
The earphone circuit structure according to claim 1, further comprising: control signal generating means (102);

One end of the control signal generating device (102) is connected to the charging and discharging device (101), and the other end of the control signal generating device (102) is connected to the earphone plug (107) through the microphone wire. .
The earphone circuit structure according to claim 6, wherein the charge and discharge device (101) comprises: a control circuit (1011), a step-up and step-down circuit (1012), and a battery (1013);

The control circuit (1011) and the buck-boost circuit (1012) are both connected to the storage battery (1013);

The control circuit (1011) is further connected to the control signal generating device (102) and the buck-boost circuit (1012);

The buck-boost circuit (1012) is coupled to the earphone plug (107).
The earphone circuit structure according to claim 1, wherein the electric device (103) comprises: a protection circuit (1031) and a power generation circuit (1032); wherein

The protection circuit (1031) is connected to the earphone plug (107);

The power circuit (1032) is connected to the protection circuit (1031).
A terminal device comprising the earphone circuit structure of any one of claims 1-8.
The terminal device according to claim 9, further comprising: a headphone interface (201), a terminal control signal generating device (202), and a terminal battery (203);

The earphone interface (201) and the terminal control signal generating device (202) are both connected to the terminal battery (203);

The earphone interface (201) is connected to the terminal control signal generating device (202);

The earphone plug (107) is inserted into the earphone interface (201).