CN220511234U

CN220511234U - Bone conduction earphone

Info

Publication number: CN220511234U
Application number: CN202322022377.4U
Authority: CN
Inventors: 陈楚鑫
Original assignee: Dongguan Liesheng Electronic Co Ltd
Current assignee: Dongguan Liesheng Electronic Co Ltd
Priority date: 2023-07-28
Filing date: 2023-07-28
Publication date: 2024-02-20
Anticipated expiration: 2033-07-28

Abstract

The utility model belongs to the technical field of headphones, and particularly relates to a bone conduction headphone, which comprises a headphone body and an ear hook which are connected with each other, wherein a control circuit, an FM radio module for receiving wireless broadcast signals and a storage module for storing music data are arranged in the headphone body; the FM radio module and the storage module are both connected with the control circuit. The FM radio module can receive external FM broadcast signals, the storage module can store music data of a plurality of songs in advance, and on the premise of not being connected with Bluetooth of a mobile phone, the earphone body can be used for listening to broadcast or playing body music stored by the storage module, so that the binding relation with the mobile phone is eliminated, and under the condition of not carrying the mobile phone, the requirement of listening to songs by a user in the process of movement can be met, and the user can perform sports more conveniently and rapidly.

Description

Bone conduction earphone

Technical Field

The utility model belongs to the technical field of earphones, and particularly relates to a bone conduction earphone.

Background

Bone conduction headphones refer to headphones that use a person's bones as a medium to transmit sound to the auditory organs without passing through the external auditory meatus and eardrum. The principle of the device is that the sound signal is converted into mechanical vibration, and sound waves are transmitted through skull, bone labyrinth, inner ear lymph, a screw, an auditory center and the like of a person. In the current life, the user population of bone conduction headphones is mostly sports enthusiasts. Traditional bone conduction earphone passes through bluetooth and is closely connected with the cell-phone to realize the transmission of music signal. However, the user carries the mobile phone to perform a smooth sports, so that the portable mobile phone becomes a burden for the user who is performing sports exercise.

Disclosure of Invention

The utility model aims to provide a bone conduction earphone, and aims to solve the technical problem that in the prior art, a user has to carry a mobile phone when using the bone conduction earphone, so that sports is inconvenient to perform.

In order to achieve the above purpose, the embodiment of the utility model provides a bone conduction earphone, which comprises an earphone body and an ear hook which are connected with each other, wherein a control circuit, an FM radio module for receiving wireless broadcast signals and a storage module for storing music data are arranged in the earphone body; the FM radio module and the storage module are both connected with the control circuit.

Optionally, the FM radio module comprises an FM chip U5 and a crystal oscillator circuit; the FM chip U5 is connected with the crystal oscillator circuit, and the FM chip U5 is also connected with the control circuit.

Optionally, the FM radio module further comprises an antenna; the antenna is disposed at the rear of the ear hook.

Optionally, the memory module includes a memory chip U8; the memory chip U8 is connected with the control circuit.

Optionally, the memory module further includes a power supply circuit, where the power supply circuit is connected to the control circuit, and the power supply circuit is configured to supply power to the memory chip U8.

Optionally, the earphone body further comprises a bluetooth module; the Bluetooth module is connected with the control circuit; the Bluetooth module is used for receiving and transmitting Bluetooth signals.

Optionally, a filter circuit is arranged in the earphone body; the filter circuit is connected with the control circuit and can filter interference signals so as to enable the earphone to achieve the effect of noise reduction

Optionally, the power amplifier circuit is further included; the power amplifier circuit comprises power amplifier chips U2 and U6, the input ends of the power amplifier chips U2 and U6 are connected with the control circuit, and the output end of the power amplifier circuit is connected with the earphone body.

Optionally, the earphone body is further provided with a protection circuit, and the protection circuit is connected with the control circuit.

Optionally, the earphone body is further provided with a USB connection port; the USB connection port is connected with the protection circuit.

The above technical solutions in the bone conduction earphone provided by the embodiments of the present utility model have at least one of the following technical effects: the FM radio module can receive external FM broadcast signals, the storage module can store music data of a plurality of songs in advance, and on the premise of not being connected with Bluetooth of a mobile phone, the earphone body can be used for listening to broadcast or playing body music stored by the storage module, so that the binding relation with the mobile phone is eliminated, and under the condition of not carrying the mobile phone, the requirement of listening to songs by a user in the process of movement can be met, and the user can perform sports more conveniently and rapidly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic circuit diagram of a bone conduction headset according to an embodiment of the present utility model;

FIG. 2 is a schematic circuit diagram of a control circuit, a protection circuit and a filter circuit according to an embodiment of the present utility model;

FIG. 3 is a schematic circuit diagram of an FM radio module according to an embodiment of the present utility model;

FIG. 4 is a schematic circuit diagram of a memory module according to an embodiment of the present utility model;

fig. 5 is a schematic circuit diagram of a power amplifier circuit according to an embodiment of the present utility model;

fig. 6 is a schematic diagram of a connection circuit of a USB connection port according to an embodiment of the present utility model.

Wherein, each reference sign in the figure:

100. a control circuit; 200. FM radio module; 210. a crystal oscillator circuit; 300. a storage module; 310. a power supply circuit; 400. a filter circuit; 500. a power amplifier circuit; 600. and a protection circuit.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended to illustrate embodiments of the utility model and should not be construed as limiting the utility model.

In the description of the embodiments of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the embodiments of the present utility model and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

In some embodiments of the present utility model, as shown in fig. 1 to 4, there is provided a bone conduction headset including a headset body and an ear hook connected to each other, the headset body having a control circuit 100, an FM radio module for receiving a wireless broadcast signal, and a storage module 300 for storing music data disposed therein. The FM radio module 200 and the memory module 300 are connected with the control circuit 100.

The FM radio module 200 can receive external FM broadcast signals, the storage module 300 can store music data of a plurality of songs in advance, and on the premise of not being connected with mobile phone bluetooth, the body music stored in the storage module 300 can be listened to broadcast or played through the earphone body, so that the binding relation with the mobile phone is eliminated, and the utility model can still meet the requirement of a user on listening to songs in sports under the condition of not carrying the mobile phone, thereby enabling the user to perform sports more conveniently and rapidly.

As shown in fig. 1, the control circuit 100 includes a control chip U1. Specifically, the model of the control chip U1 is preferably QCC3044 or another type of chip. And an H4 pin and a J3 pin of the control chip U1 are connected with the FM radio module 200. And the F2 pin, the H2 pin, the G8 pin, the F8 pin, the G9 pin and the F9 pin of the control chip U1 are connected.

The earphone body comprises a loudspeaker, a microphone and the like. The loudspeaker and the microphone are both connected with the control chip U1.

In other embodiments of the present utility model, as shown in fig. 3, the FM radio module 200 includes an FM chip U5 and a crystal oscillator circuit 210. The FM chip U5 is connected to the crystal oscillator circuit 210, and the FM chip U5 is also connected to the control circuit 100. The FM chip U5 may decode the received broadcast signal and transmit to the speaker for playing.

The model of the FM chip U5 is preferably RDA5870FP or other chips of the same type.

The crystal oscillator circuit 210 comprises a crystal oscillator X1, and the frequency of the crystal oscillator X1 is preferably 24MHz. And a third pin of the crystal oscillator X1 is connected with a ninth pin of the FM chip U5. The crystal oscillator X1 generates specific frequency for frequency division or frequency modulation of the FM chip.

In other embodiments of the present utility model, the FM radio module 200 further comprises an antenna. The antenna is disposed at the rear of the ear hook. The antenna is connected with a fourth pin of the FM chip, namely an antenna access pin of the FM chip. The antenna is used for receiving surrounding wireless broadcast signals and transmitting the surrounding wireless broadcast signals to the FM chip U5.

A coil can be additionally arranged in the ear hook, and the antenna can be connected with the additionally arranged coil, so that the gain performance of the antenna is improved.

In other embodiments of the present utility model, as shown in fig. 4, the memory module 300 includes a memory chip U8. The memory chip U8 is connected to the control circuit 100. The model of the memory chip U8 is preferably a GD25LQ128D chip. The GD25LQ128D chip is a high-capacity NOR FLASH memory chip. The user stores favorite music into the flash memory chip, and can directly listen to the stored music during sports.

In other embodiments of the present utility model, as shown in fig. 4, the memory module 300 further includes a power supply circuit 310, where the power supply circuit 310 includes a transistor Q10, the S pin of the transistor Q10 is connected to the G2 pin and the E2 pin of the control chip U1, the G pin of the transistor Q10 is connected to the K3 pin of the control chip U1, and the D pin of the transistor is connected to the eighth pin of the memory chip U8. When the control chip U1 sends a low-level power supply signal to the triode Q10, the triode Q10 is conducted, so that the control chip U1 supplies power to the storage chip U8.

In other embodiments of the present utility model, the earphone body further comprises a bluetooth module. The bluetooth module is connected to the control circuit 100. The Bluetooth module is used for receiving and transmitting Bluetooth signals. Specifically, the chip of QCC3044 model has a bluetooth module, and can establish bluetooth connection with external electronic devices, such as a mobile phone.

In other embodiments of the present utility model, as shown in fig. 1-2, a filter circuit 400 is disposed within the earphone body. The filter circuit 400 is connected with the control circuit 100, and the filter circuit 400 can filter the interference signal, so that the earphone achieves the effect of noise reduction. Specifically, the filter circuit 400 includes a filter chip FIL. The model of the filter chip FIL is preferably LFB182G45SG9a272. In this embodiment, the second pin of the filter chip FIL is connected to the C1 pin of the control chip U1. And a fourth pin of the filter chip FIL is connected with a loudspeaker. The sound signal transmitted from the control chip U1 is filtered by the filter chip FIL, thereby realizing the effects of noise reduction and sound amplification.

In other embodiments of the present utility model, as shown in fig. 5, a power amplifier circuit 500 is further disposed in the earphone body. The power amplifier circuit 500 includes power amplifier chips U2 and U6, and input ends of the power amplifier chips U2 and U6 are connected with the control circuit 100. Specifically, the power amplification chips U2 and U6 are respectively connected with the left speaker and the right speaker, and the power amplification chip performs further power amplification processing on the sound signal transmitted from the control chip U1, so that the sound played from the speakers is clearer.

Specifically, the model of the power amplifier chips U2 and U6 is preferably a BGA_AW8010A chip.

In other embodiments of the present utility model, as shown in fig. 2, the earphone body is further provided with a protection circuit 600, and the protection circuit 600 is connected to the control circuit 100. When the circuit fails in overvoltage or overcurrent, the overvoltage circuit automatically cuts off the circuit, thereby protecting components in the circuit 600.

Specifically, the protection circuit 600 includes an overvoltage and overcurrent protection chip U4, and the model of the overvoltage and overcurrent protection chip U4 is preferably a dfn_lp5305QVF chip. And an eighth pin of the overvoltage and overcurrent protection chip U4 is connected with a G10 pin, a K8 pin and a J6 pin of the control chip U1.

In other embodiments of the present utility model, as shown in fig. 6, the earphone body is further provided with a USB connection port J1. The USB connection port J1 is connected with the first pin of the protection chip U4. And the USB connection port is connected with external charging equipment, so that the earphone body is charged. During charging, the protection circuit 600 is automatically turned off if the circuit fails to over-voltage or over-current.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The bone conduction earphone comprises an earphone body and an ear hook which are connected with each other, and is characterized in that a control circuit, an FM radio module for receiving wireless broadcast signals and a storage module for storing music data are arranged in the earphone body; the FM radio module and the storage module are both connected with the control circuit.

2. The bone conduction headset of claim 1, wherein the FM radio module comprises an FM chip and a crystal oscillator circuit; the FM chip is connected with the crystal oscillator circuit, and the FM chip is also connected with the control circuit.

3. The bone conduction headset of claim 2, wherein the FM radio module further comprises an antenna; the antenna is disposed at the rear of the ear hook.

4. The bone conduction headset of claim 1, wherein the memory module comprises a memory chip; the memory chip is connected with the control circuit.

5. The bone conduction headset of claim 4, wherein the memory module further comprises a power supply circuit coupled to the control circuit, the power supply circuit configured to power the memory chip U8.

6. The bone conduction headset of any one of claims 1-5, wherein the headset body further comprises a bluetooth module; the Bluetooth module is connected with the control circuit; the Bluetooth module is used for receiving and transmitting Bluetooth signals.

7. The bone conduction headset of claim 6, wherein a filter circuit is disposed within the headset body; the filter circuit is connected with the control circuit, and the filter circuit can filter interference signals, so that the earphone achieves the effect of noise reduction.

8. The bone conduction headset of claim 7, further comprising a power amplifier circuit; the power amplifier circuit comprises a power amplifier chip, the input end of the power amplifier chip is connected with the control circuit, and the output end of the power amplifier circuit is connected with the earphone body.

9. The bone conduction headset of claim 8, wherein the headset body is further provided with a protection circuit, the protection circuit being connected to the control circuit.

10. The bone conduction headset of claim 9, wherein the headset body is further provided with a USB connection port; the USB connection port is connected with the protection circuit.