An audio output device

Abstract

This utility model discloses an audio output device, including: an earphone body and a speaker base; wherein, the earphone body includes a speaker and a connector, the connector being electrically connected to the speaker base; when the earphone body is electrically connected to the speaker base, the speaker base is used to amplify the output power of the speaker in the earphone body to increase the audio output volume. The technical solution provided by this utility model realizes the free switching between earphone function and speaker function of the audio output device, meeting the diverse needs of users.

Description

Technical Field

[0001] This utility model relates to the field of audio playback technology, and in particular to an audio output device. Background Technology

[0002] Audio devices are electronic devices that can convert digital or analog audio signals into sound waves that are audible to the human ear. Their core function is to convert stored or transmitted audio data into sound.

[0003] Traditional audio devices are typically divided into headphones and speakers. Currently, headphones and speakers on the market are generally used separately, without integration, failing to provide both headphone and speaker functionality. This separation of headphone and speaker functions requires users to purchase and use them separately, increasing cost and carrying burden. Traditional headphone speakers have low power (typically tens of milliwatts), unable to meet the high volume demands of free-field playback; while speakers are bulky and inconvenient to carry. Users need to use different devices in different scenarios, making seamless switching impossible. Therefore, how to achieve seamless switching between headphone and speaker functions to meet diverse user needs has become a pressing technical problem to be solved. Utility Model Content

[0004] This utility model provides an audio output device to enable free switching between headphone and speaker functions, meeting diverse user needs.

[0005] According to one aspect of the present invention, an audio output device is provided, comprising:

[0006] The headphone body and the speaker base;

[0007] The headphone body includes a speaker and a connector, the connector being used for electrical connection with the speaker base; when the headphone body is electrically connected to the speaker base, the speaker base is used to amplify the output power of the speaker in the headphone body to increase the volume of the audio output.

[0008] Optionally, the output power range of the speaker in the earphone body is 5mW to 1.5W;

[0009] Where the headphone body is not electrically connected to the speaker base, the output power of the speaker in the headphone body is less than or equal to 50mW.

[0010] Optionally, the headphone body further includes a control module, and the speaker base includes an audio signal processing module;

[0011] The control module is used to receive audio signals sent by external devices, and when the headphone body is electrically connected to the speaker base, transmit the audio signals to the audio signal processing module through the connector; the audio signal processing module is used to amplify the audio signals into target audio signals, and transmit the target audio signals to the control module; the control module is also used to control the speaker to play the target audio signals after receiving the target audio signals.

[0012] Optionally, the control module includes a Bluetooth chip, which is used to receive the audio signal sent by the external device;

[0013] The audio signal processing module includes a digital signal processor and a power amplifier. The digital signal processor is used to receive the audio signal and convert the audio signal from a digital signal to an analog signal; the power amplifier is used to amplify the audio signal converted to an analog signal.

[0014] Optionally, the earphone body further includes:

[0015] A function key unit is electrically connected to the control module, and the control module is further configured to control the operating state of the speaker according to a control signal triggered by the function key unit; wherein, the function key unit includes at least one of a volume up key, a volume down key, a pause key, and an audio switching key;

[0016] A microphone unit is used to collect the user's voice, convert the user's voice into an audio signal, and send it to the control module.

[0017] Optionally, the earphone body further includes a voice recognition unit connected between the control module and the microphone unit, the voice recognition unit being used to recognize the user's voice commands.

[0018] Optionally, the speaker base also includes:

[0019] The charging case allows the earphones to be placed inside, and the earphones are electrically connected to the charging contacts on the charging case via the connector. The speaker base is also used to charge the battery in the earphones.

[0020] Optionally, the speaker base also includes a power management module, which is used to detect the charging current of the charging case, and trigger the audio signal processing module to call the speaker mode's working parameters to process the audio signal after detecting the charging current.

[0021] Optionally, the earphone body is an open-back earphone.

[0022] Optionally, the connector may include a spring pin connector.

[0023] This utility model provides an audio output device, including: an earphone body and a speaker base; wherein, the earphone body includes a speaker and a connector, the connector being used for electrical connection with the speaker base; when the earphone body and the speaker base are electrically connected, the speaker base is used to amplify the output power of the speaker in the earphone body to increase the volume of the audio output. The technical solution provided by this utility model uses the earphone body as an audio output component. When the earphone body and the speaker base are connected, the power amplifier in the speaker base can amplify the power of the speaker in the earphone, thereby realizing the speaker function. When the earphone body and the speaker base are not connected, the speaker in the earphone body operates at the power of the earphone mode, thereby realizing the earphone function. The speaker base does not need to contain a separate speaker; only the speaker in the earphone body is needed to achieve both earphone and speaker playback functions, reducing the cost of the device and facilitating the miniaturization of the speaker base. This makes the speaker base easy to carry. The electrical connection and disconnection between the earphone body and the speaker base allows for free switching between the earphone function and the speaker function of the audio output device, meeting diverse user needs.

[0024] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this utility model, nor is it intended to limit the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of an audio output device provided in an embodiment of the present invention;

[0027] Figure 2 This is a structural block diagram of an audio output device provided in an embodiment of the present utility model;

[0028] Figure 3 This is a structural block diagram of another audio output device provided in this embodiment of the present invention;

[0029] Figure 4 This is a structural block diagram of another audio output device provided in this embodiment of the present invention;

[0030] Figure 5This is a structural block diagram of another audio output device provided in an embodiment of the present utility model. Detailed Implementation

[0031] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0032] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0033] This utility model provides an audio output device. Figure 1 This is a schematic diagram of the structure of an audio output device provided in an embodiment of this utility model, for reference. Figure 1 The audio output device includes:

[0034] The headphone body 10 and the speaker base 20;

[0035] The headphone body 10 includes a speaker and a connector, which is used to electrically connect with the speaker base 20. When the headphone body 10 is electrically connected to the speaker base 20, the speaker base 20 is used to amplify the output power of the speaker in the headphone body 10 to increase the volume of the audio output.

[0036] Specifically, both the headphone body 10 and the speaker base 20 include a housing and circuitry and electronic components housed within the housing. The headphone body 10 houses a speaker, an electronic component that converts electrical signals into sound. The main components of the speaker include: a diaphragm for vibrating to generate sound waves, made of materials such as paper, plastic, or metal; a voice coil for driving the diaphragm; and a magnet for providing a fixed magnetic field, commonly made of ferrite or neodymium magnets. The speaker operates based on the principle of electromagnetic induction. Specifically, an audio electrical signal (current) passes through the speaker's voice coil, which is placed in the magnetic field of a permanent magnet. Changes in the current cause the voice coil to move under the Lorentz force, driving the diaphragm to vibrate and pushing the surrounding air to generate sound waves, thus producing sound. In this embodiment, the speaker's output power range covers the power range required for both headphone and speaker modes.

[0037] The earphone body 10 has a connector on its outer shell, allowing it to be electrically connected to the speaker base 20. The speaker base 20 is a portable speaker base and includes an audio signal processing module. This module processes audio signals, converting them from digital to analog signals and amplifying the converted analog signals. When the earphone body 10 is not electrically connected to the speaker base 20, it operates in earphone mode with low speaker output power. When electrically connected, the earphone body 10 transmits the received audio signal to the speaker base 20 via the connector. The audio signal processing module in the speaker base 20 converts and amplifies the audio signal, increasing the output power range of the speaker in the earphone body 10, thus placing it within the power range corresponding to speaker mode and increasing the audio output volume. This allows the earphone body to switch from earphone mode to speaker mode.

[0038] The audio output device provided in this embodiment of the present invention includes: an earphone body 10 and a speaker base 20; wherein, the earphone body 10 includes a speaker and a connector, the connector being used for electrical connection with the speaker base 20; when the earphone body 10 is electrically connected to the speaker base 20, the speaker base 20 is used to amplify the output power of the speaker in the earphone body 10 to increase the volume of the audio output. The technical solution provided by this utility model uses the headphone body 10 as an audio output component (SPK module). When the headphone body 10 is connected to the speaker base 20, the power amplifier in the speaker base 20 can amplify the power of the speaker in the headphone, thereby realizing the speaker function. When the headphone body 10 and the speaker base 20 are disconnected, the speaker in the headphone body 10 works at the power of the headphone mode, thereby realizing the headphone function. There is no need to install a speaker in the speaker base 20. Only the speaker in the headphone body 10 is needed to realize the headphone and speaker playback functions, which reduces the cost of the audio output device, facilitates the miniaturization of the speaker base 20, and makes the speaker base 20 easy to carry. By connecting and disconnecting the headphone body 10 and the speaker base 20, the headphone function and speaker function of the audio output device can be freely switched. It can be applied to various scenarios such as home entertainment, outdoor activities, and office meetings, meeting the diverse needs of users.

[0039] Based on the above embodiments, optionally, Figure 2 This is a structural block diagram of an audio output device provided in an embodiment of the present invention, with reference to... Figure 2 The headphone body 10 also includes a control module 11, and the speaker base 20 includes an audio signal processing module 21. The control module 11 receives audio signals sent by the external device 30 and, when the headphone body 10 is electrically connected to the speaker base 20, transmits the audio signals to the audio signal processing module 21 in the speaker base 20 via a connector. The audio signal processing module 21 processes the audio signals into a target audio signal and transmits the target audio signal to the control module 11. The control module 11 also controls the speaker 12 to play the target audio signal after receiving it. The audio signal sent by the external device 30 can be a digital audio signal. For ease of description, the digital audio signal can be referred to as a digital audio signal, and the analog audio signal will be referred to as an analog audio signal below. The target audio signal can be understood as an analog audio signal that enables the speaker's output power to meet the output power requirements of the speaker function.

[0040] Furthermore, the control module 11 may include a Bluetooth chip, which is used to receive audio signals (digital audio signals) sent by the external device 30, meaning the earphone body 10 is a Bluetooth earphone. When the earphone body 10 is not electrically connected to the speaker base 20, the earphone body 10 operates in earphone mode. The Bluetooth chip is used to wirelessly receive digital audio signals sent via Bluetooth by the external device 30, such as a smartphone, and after digital-to-analog conversion, output analog audio signals to the speaker 12 for audio playback in earphone mode. The earphone body 10 also includes an antenna 14, through which the Bluetooth chip wirelessly receives and sends digital audio signals to the external device 30.

[0041] When the headphone body 10 is electrically connected to the speaker base 20, the Bluetooth chip, upon receiving a digital audio signal sent via Bluetooth by an external device 30 (such as a smartphone), transmits the digital audio signal to the audio signal processing module 21 in the speaker base 20 through a connector. The audio signal processing module 21 in the speaker base 20 may include a digital signal processor (DSP) and a power amplifier. The DSP is electrically connected to the power amplifier. The DSP receives the digital audio signal and converts it into an analog audio signal; the power amplifier amplifies the analog audio signal to obtain the target audio signal. The target audio signal is transmitted to the headphone body 10 through the connector. The speaker 12 in the headphone body 10 can increase its output power under the target audio signal, thereby increasing the volume of the played audio and realizing the speaker function. The connector includes, but is not limited to, a pogo pin connector. A pogo pin connector is a precision electrical connector based on a spring structure design, widely used in electronic devices for connection scenarios requiring frequent plugging and unplugging, compact space, or high reliability.

[0042] Based on the above embodiments, optionally, the output power range of the speaker 12 in the headphone body 10 is 5mW to 1.5W; wherein, when the headphone body 10 is not electrically connected to the speaker base 20, the output power of the speaker 12 in the headphone body 10 is less than or equal to 50mW.

[0043] Specifically, the speaker 12 in the headphone body 10 has a power range covering 5mW to 1.5W. By combining it with different power amplifiers, it can meet the playback requirements of headphone mode and speaker mode. Compared to traditional audio equipment, the technical solution provided by this embodiment does not require multiple speaker units to achieve the functions of both headphones and speakers. Both the headphone body 10 and the speaker base 20 can contain power amplifiers. The power amplifier in the speaker base 20 amplifies the audio signal (analog audio signal) with a greater intensity than the power amplifier in the headphone body 10. After amplifying the audio signal, the power amplifier in the speaker base 20 can enable the speaker 12 in the headphone body 10 to output a power of 1.5W, and the power amplifier in the headphone body 10 can enable the speaker 12 in the headphone body 10 to output a power of 50mW.

[0044] Based on the above embodiments, optionally, the headphone body 10 is an open-back headphone.

[0045] Specifically, headphones can be classified into open-back headphones, semi-open-back headphones, and closed-back headphones based on their degree of openness. The core difference lies in the control of sound leakage and external noise isolation by the headphone's cavity structure. For open-back headphones, the earcups or earplugs have an open structure (such as a venting mesh or openings), which does not isolate external sound. Common forms include on-ear headphones, ear-hook headphones, and bone conduction headphones. The headphone body 10 of this embodiment is an open-back headphone, which allows sound to diffuse naturally, reduces reflected sound interference, and improves the listening experience when switching to speaker mode.

[0046] Based on the above embodiments, optionally, the speaker base 20 also includes:

[0047] After the earphone body 10 is placed in the charging case, the earphone body 10 is electrically connected to the charging contacts on the charging case through the connector. Therefore, the speaker base 20 is also used as an earphone charging case to charge the battery in the earphone body 10.

[0048] Specifically, Figure 3 This is a structural block diagram of an audio output device provided in an embodiment of the present invention, with reference to... Figure 3 The speaker base 20 contains a power management module 22 and a speaker battery 23 electrically connected to the power management module 22. The power management module 22 manages the charging and discharging of the speaker battery 23. The speaker battery 23 can be used as a rechargeable battery to charge the headphone battery 13 in the headphone body 10. While the speaker base 20 is charging the headphone battery 13 in the headphone body 10, the headphone body 10 can either not operate and only be charging, or it can operate simultaneously in speaker mode.

[0049] Alternatively, the connector can be retracted into the shell of the earphone body 10. In this case, when the earphone body 10 is placed in the charging case, the earphone body 10 is not connected to the charging contacts on the charging case. The charging case can be used only to store the earphone body 10, thereby further improving the portability of the earphone body 10 and the speaker base 20 and enhancing the user experience.

[0050] Based on the above embodiments, optionally, the power management module 22 is also used to detect the charging current of the charging compartment, and after detecting the charging current, triggers the audio signal processing module 21 to call the working parameters of the speaker mode to process the audio signal.

[0051] Specifically, the speaker base 20 has a built-in rechargeable battery (speaker battery 23) and a power amplifier, which power the earphone body 10 and transmit audio signals through the Pogo Pin. When the earphone body 10 is placed in the charging case, the two ends of the Pogo Pin make contact with the charging contacts on the charging case and the charging contacts in the earphone body 10, respectively, forming an electrical connection. At the same time, the speaker base 20 outputs charging current. After the charging IC in the power management module 22 detects the current, it indicates that the earphone body 10 is successfully connected to the speaker base 20. The charging IC triggers the audio signal processing module 21 in the speaker base 20 to call the DSP parameters of the speaker mode to process the audio signal, so that the output power of the speaker 12 in the earphone body 10 can be amplified to a maximum of 1.5W, thereby realizing free field audio playback.

[0052] When the earphone body 10 leaves the speaker base 20, the Pogo Pin disconnects from the charging contacts on the earphone body 10 and the charging contacts on the charging case, the charging current disappears, and the charging IC in the power management module 22 determines that the earphone body 10 is disconnected from the speaker base 20. Then it switches to earphone mode, the output power of the speaker 12 in the earphone body 10 is reduced to a maximum of 50mW, the volume output of the earphone body 10 is reduced, and it is worn on the ears as an open-back earphone.

[0053] Based on the above embodiments, optionally, Figure 4 This is a structural block diagram of an audio output device provided in an embodiment of the present invention, with reference to... Figure 4 The outer shell surface of the earphone body 10 also includes:

[0054] The function key unit 15 is electrically connected to the control module 11. The control module 11 is also used to control the working state of the speaker 12 according to the control signal triggered by the function key unit 15. The function key unit 15 includes at least one of the following: volume up key, volume down key, pause key, and audio switch key.

[0055] Based on the above embodiments, alternative options are available; please continue to refer to them. Figure 4The earphone body 10 also includes a microphone unit 16, which includes at least one microphone. The microphone unit 16 is used to collect the user's voice and convert the user's voice into an audio signal, which is then sent to the control module 11.

[0056] Specifically, the microphone unit 16 converts sound waves into analog signals (analog audio signals), and then the ADC converts the analog signals into digital signals, thus forming digital audio signals. The control module 11 can transmit the digital audio signals based on the user's voice to an external device 30, such as a smartphone, via a Bluetooth chip. The control module 11 can also transmit the digital audio signals based on the user's voice to the speaker base 20 via a connector. The speaker base 20 then processes and amplifies the audio signals based on the user's voice, and finally outputs the user's voice through the speaker 12 in the headphone body 10. This allows the audio output device to also function as a microphone, further meeting the diverse needs of users.

[0057] Based on the above embodiments, optionally, Figure 5 This is a structural block diagram of an audio output device provided in an embodiment of the present invention, with reference to... Figure 5 The earphone body 10 also includes a voice recognition unit 17, which is connected between the control module 11 and the microphone unit 16. The voice recognition unit 17 can separate human voice from environmental noise (such as wind noise and traffic noise) based on AI algorithms. It can also be used to recognize the user's voice commands and perform voice control such as changing songs, adjusting volume, and answering phone calls.

[0058] Further reference Figure 5 The speaker base 20 also includes an LED unit 24, which includes at least one LED (Light Emitting Diode) to indicate the operating status of the speaker base 20 by the on / off state and / or the color of the LED. For example, the LED unit 24 includes one LED for indicating whether the speaker base 20 is successfully electrically connected to the headphone body 10, and at least two LEDs for indicating the audio signal amplification level.

[0059] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. An audio output device, characterized in that, include: The headphone body and the speaker base; The earphone body includes a speaker and a connector, the connector being used for electrical connection with the speaker base; When the headphone body is electrically connected to the speaker base, the speaker base is used to amplify the output power of the speaker in the headphone body to increase the volume of the audio output.

2. The audio output device according to claim 1, characterized in that, The output power range of the speaker in the earphone body is 5mW to 1.5W; Where the headphone body is not electrically connected to the speaker base, the output power of the speaker in the headphone body is less than or equal to 50mW.

3. The audio output device according to claim 1, characterized in that, The headphone body also includes a control module, and the speaker base includes an audio signal processing module; The control module is used to receive audio signals sent by external devices, and when the headphone body is electrically connected to the speaker base, transmit the audio signals to the audio signal processing module through the connector; the audio signal processing module is used to amplify the audio signals into target audio signals, and transmit the target audio signals to the control module; the control module is also used to control the speaker to play the target audio signals after receiving the target audio signals.

4. The audio output device according to claim 3, characterized in that, The control module includes a Bluetooth chip, which is used to receive the audio signal sent by the external device; The audio signal processing module includes a digital signal processor and a power amplifier. The digital signal processor is used to receive the audio signal and convert the audio signal from a digital signal to an analog signal; the power amplifier is used to amplify the audio signal converted to an analog signal.

5. The audio output device according to claim 3, characterized in that, The earphone body also includes: A function key unit is electrically connected to the control module, and the control module is further configured to control the operating state of the speaker according to a control signal triggered by the function key unit; wherein, the function key unit includes at least one of a volume up key, a volume down key, a pause key, and an audio switching key; A microphone unit is provided for collecting user voice and converting the user voice into an audio signal, which is then sent to the control module.

6. The audio output device according to claim 5, characterized in that, The earphone body also includes a voice recognition unit connected between the control module and the microphone unit, the voice recognition unit being used to recognize the user's voice commands.

7. The audio output device according to claim 3, characterized in that, The speaker base also includes: The charging case allows the earphones to be placed inside, and the earphones are electrically connected to the charging contacts on the charging case via the connector. The speaker base is also used to charge the battery in the earphones.

8. The audio output device according to claim 7, characterized in that, The speaker base also includes a power management module, which is used to detect the charging current of the charging compartment and, upon detecting the charging current, triggers the audio signal processing module to call the speaker mode's working parameters to process the audio signal.

9. The audio output device according to claim 1, characterized in that, The earphone body is an open-back design.

10. The audio output device according to claim 1, characterized in that, The connector includes a spring pin connector.

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