Earphone device and TWS earphone thereof
By designing a headphone device including power module, Bluetooth module, DAC module, audio switch module, microphone module and speaker module, the problem of insufficient room for improving the sound quality of TWS headphones is solved, and the switching between noise reduction audio and ultra-high sound quality audio is achieved, and the user's audio experience is improved.
Patent Information
- Application Number
- CN202421694999.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-07-16
AI Technical Summary
Due to the small size of existing TWS headphones, it is difficult to accommodate audio processing chips, resulting in limited room for sound quality improvement.
Design a headphone device, including a power module, Bluetooth module, DAC module, audio switch module, microphone module and speaker module, and switch between noise reduction and ultra-high audio through the connection between Bluetooth module and the audio switch module.
It provides a better and more comfortable audio experience, improving the sound quality level of TWS headphones.
Smart Images
Figure CN223231272U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of Bluetooth earphones, in particular to an earphone device and a TWS earphone thereof. Background Art
[0002] TWS earphones use Bluetooth technology for wireless connection. There are no connecting wires between the earphones, and each earphone unit can work independently, providing users with a more convenient user experience. With the continuous development of audio technology, TWS earphones have also been loved by the majority of users due to their portability and wirelessness; however, due to the small overall size of TWS earphones, it is difficult to design audio processing chips into them, which means that the current TWS earphones still have a lot of room for improvement in sound quality.
[0003] Therefore, designing a high-quality earphone device and a TWS earphone thereof is of vital importance to those skilled in the art. Utility Model Content
[0004] The technical problem to be solved by the embodiments of the present invention is to provide a high-quality earphone device and a TWS earphone thereof, so as to solve the problem in the prior art that the overall volume of the TWS earphone is small, and it is difficult to have space to design the audio processing chip into it, leaving a lot of room for improvement in the sound quality.
[0005] The utility model discloses an earphone device, which includes: a power module, a Bluetooth module, a DAC module, an audio switch module, a microphone module and a speaker module, wherein the power module is used for supplying power, the output end of the microphone module is connected to the first input end of the Bluetooth module, the first output end of the Bluetooth module is connected to the first input end of the audio switch module, the second output end of the Bluetooth module is connected to the input end of the DAC module, the output end of the DAC module is connected to the second input end of the audio switch module, the output end of the audio switch module is connected to the input end of the speaker module, and the speaker module is used for playing audio.
[0006] Optionally, the DAC module includes an HM01 decoding chip, a signal input end of the HM01 decoding chip is connected to the Bluetooth module via an I2S bus, and a signal output end of the HM01 decoding chip is connected to the audio switch module.
[0007] Optionally, the HM01 decoding chip has a built-in audio power amplifier unit.
[0008] Optionally, the power supply module includes a battery and a DC-DC module, the voltage input end of the DC-DC module is connected to the voltage output end of the battery for power supply, and the input end of the DC-DC module is connected to the enable end of the Bluetooth module.
[0009] Optionally, the Bluetooth module includes a first enabling terminal, a second enabling terminal and a third enabling terminal, and the first enabling terminal, the second enabling terminal and the third enabling terminal are all connected to the DC-DC module to respectively control the power supply of different modules.
[0010] Optionally, the Bluetooth module includes a Bluetooth chip, and the Bluetooth chip includes an SD control terminal for connecting to the DAC module, and a SW control terminal for connecting to the audio switch unit.
[0011] Optionally, a touch module is further included, wherein a voltage input terminal of the touch module is connected to the power module, and an output terminal of the touch module is connected to the second input terminal of the Bluetooth module.
[0012] Optionally, an infrared module is further included, wherein a voltage input terminal of the infrared module is connected to the power module, and an output terminal of the infrared module is connected to the third input terminal of the Bluetooth module.
[0013] Optionally, a Hall module is further included, wherein a voltage input terminal of the Hall module is connected to the power module, and an output terminal of the Hall module is connected to the fourth input terminal of the Bluetooth module.
[0014] In order to solve the problems of the prior art, the present invention also provides a TWS headset, the solution of which is that the TWS headset includes a charging compartment and a left earphone and a right earphone arranged in the charging compartment, and the left earphone and the right earphone both include the earphone device as described above.
[0015] Compared with the prior art, the beneficial effect of the earphone device provided by the embodiment of the present invention is that: by designing an earphone device including a power module, a Bluetooth module, a DAC module, an audio switch module, a microphone module and a speaker module, and connecting the first output end of the Bluetooth module to the first input end of the audio switch module to output noise-reduced audio, connecting the input end of the DAC module to the second output end of the Bluetooth module, and connecting the output end of the DAC module to the second input end of the audio switch module to output ultra-high-quality audio, the audio switch module can achieve switching between noise-reduced audio and ultra-high-quality audio, providing users with a higher-quality and more comfortable audio experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments, in which:
[0017] Figure 1 This is a system block diagram of the earphone device provided by an embodiment of the present utility model;
[0018] Figure 21 is a circuit diagram of a DAC module provided by an embodiment of the present utility model;
[0019] Figure 3 This is a circuit diagram of an audio switch module provided by an embodiment of the present utility model;
[0020] Figure 4 This is a circuit diagram of a touch module provided by an embodiment of the present utility model. DETAILED DESCRIPTION
[0021] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. Now, in conjunction with the accompanying drawings, a detailed description of the preferred embodiments of the present utility model will be given.
[0022] like Figures 1 to 3 As shown, the utility model provides a specific embodiment of an earphone device.
[0023] A headphone device, referring to Figure 1 The earphone device includes: a power module 100, a Bluetooth module 200, a DAC module 300, an audio switch module 400, a microphone module 500 and a speaker module 600. The output end of the microphone module 500 is connected to the first input end of the Bluetooth module 200, the first output end of the Bluetooth module 200 is connected to the first input end of the audio switch module 400, the second output end of the Bluetooth module 200 is connected to the input end of the DAC module 300, the output end of the DAC module 300 is connected to the second input end of the audio switch module 400, and the output end of the audio switch module 400 is connected to the input end of the speaker module 600.
[0024] Specifically, refer to Figure 1 The power module 100 includes 1 DC-DC and 4 LDOs, which can achieve four voltage outputs of 3.3V, 3V, 1.8V and 1.2V. The voltage input end of the DAC module 300 is connected to the voltage output end of the power module 100 to obtain 3.3V voltage, 1.8V voltage and 1.2V voltage. The voltage input end of the audio switch module 400 is connected to the voltage output end of the power module 100 to obtain 3.3V voltage. The voltage input end of the microphone module 500 is connected to the voltage output end of the power module 100 to obtain 3V voltage.
[0025] Further, refer to Figure 1The Bluetooth module 200 is used to control each module and transmit high-quality Bluetooth audio. The voltage output end of the Bluetooth module 200 is connected to the microphone module 500 to provide 1.8V power supply for the microphone module 500. The first input end of the Bluetooth module 200 is connected to the microphone module 500 to obtain the audio recorded by the microphone module 500 and process the audio input by the microphone module 500 to realize the functions of call and active noise reduction.
[0026] Further, refer to Figure 1 The signal input end of the DAC module 300 is connected to the signal output end of the Bluetooth module 200 to obtain an audio signal, and the signal output end of the DAC module 300 is connected to the signal input end of the audio switch module 400 to process the obtained audio signal and output the processed audio signal to the audio switch module 400, and then the audio switch module 400 selects one audio output to the speaker module 600; wherein, the DAC module 300 includes an audio decoding chip, which can decode the received audio to obtain a high-precision, low-noise, high-quality analog audio signal.
[0027] Further, refer to Figure 1 and Figure 2 The audio switch module 400 is used to select audio output. The Bluetooth module 200 controls the audio switch module 400 through SW to achieve switching of different music qualities. When in noise reduction mode and transparency mode, the Bluetooth module 200 outputs a low level to the audio switch module 400, so that the audio switch module 400 selects 5181 audio output to the speaker module 600 to achieve a hybrid noise reduction function; when in ANC OFF mode, the Bluetooth module 200 outputs a high level to the audio switch module 400 to select DAC audio output to the speaker module 600 to provide ultra-high sound quality music.
[0028] Further, refer to Figure 1 The microphone module 500 includes an FF microphone, an FB microphone and a TALK microphone. The audio of the FF microphone, the FB microphone and the TALK microphone are all output to the Bluetooth module 200 and processed and output by the Bluetooth module 200 to realize the functions of call and active noise reduction. Among them, the FF microphone and the FB microphone realize the hybrid active noise reduction function, and the FF microphone and the TALK microphone realize the dual-microphone CVC call noise reduction function.
[0029] At present, since TWS headphones are generally designed to be smaller in size for portability, it is difficult to design audio processing chips into them, which means that there is still a lot of room for improvement in the sound quality of current TWS headphones.
[0030] In this embodiment, an earphone device is designed including a power module, a Bluetooth module, a DAC module, an audio switch module, a microphone module and a speaker module, and the first output end of the Bluetooth module is connected to the first input end of the audio switch module to output noise-reduced audio, the input end of the DAC module is connected to the second output end of the Bluetooth module, and the output end of the DAC module is connected to the second input end of the audio switch module to output ultra-high-quality audio. The audio switch module can achieve switching between noise-reduced audio and ultra-high-quality audio, providing users with a higher-quality and more comfortable audio experience.
[0031] In one embodiment, reference Figure 1 and Figure 3 The DAC module 300 includes a HM01 decoding chip, a signal input end of the HM01 decoding chip is connected to the Bluetooth module 200 through an I2S bus, and a signal output end of the HM01 decoding chip is connected to the audio switch module 400.
[0032] Specifically, refer to Figure 1 and Figure 3 The DAC module 300 is a digital-to-analog converter that converts digital audio signals into analog audio signals. When digital audio data is transmitted to the earphones through the Bluetooth module 200, these data exist in digital form and need to be converted into analog signals by the DAC module 300 to drive the speaker module to produce sound. The DAC module 300 can provide clearer and more accurate sound performance to improve the audio experience.
[0033] Specifically, refer to Figure 1 and Figure 3 The DAC module 300 includes an HM01 decoding chip for audio decoding, which adopts the Sigma-Delta architecture. Through Sigma-Delta DAC hard decoding, high-precision, low-noise, high-quality analog audio signals can be obtained; specifically, the HM01_BGA39 chip can be used. The HM01_BGA39 chip has a built-in audio power amplifier module to enhance the voltage or power of the audio signal, thereby further improving the quality of the audio signal and music performance, thereby providing users with a higher quality music experience.
[0034] In one embodiment, reference Figure 1 The power module 100 includes a battery 110 and a DC-DC module 120. The voltage input end of the DC-DC module 120 is connected to the voltage output end of the battery 110 for power supply, and the input end of the DC-DC module 120 is connected to the enable end of the Bluetooth module 200.
[0035] Specifically, refer to Figure 1The power module 100 includes a battery 110, which is used to power functional modules such as the power module 100, the Bluetooth module 200, and the Hall module 900. The power module 100 includes a DC-DC module 120 and four LDO outputs. The DC-DC module 120 is used to convert the DC voltage from one level to another, so as to convert the input DC voltage into the required output voltage to meet the power requirements of various functional modules in the device.
[0036] Among them, reference Figure 1 The four LDO outputs of the power module 100 are connected to different enable terminals of the Bluetooth module 200 to individually control the power supply of different functional modules.
[0037] In one embodiment, reference Figure 1 The Bluetooth module 200 includes a first enabling terminal EN1, a second enabling terminal EN2 and a third enabling terminal EN3. The first enabling terminal EN1, the second enabling terminal EN2 and the third enabling terminal EN3 are all connected to the DC-DC module 120 to control the power supply of different modules respectively.
[0038] The Bluetooth module 200 controls the power module 100 through the first enable terminal EN1, the second enable terminal EN2 and the third enable terminal EN3, and can independently control the power supply of each module to achieve minimum power consumption and improve battery life; when the first enable terminal EN1 outputs a high level to the power module 100, it will turn on 3.0V to power the FB microphone; when the second enable terminal EN2 outputs a high level to the power module 100, it will turn on 3.3V to power the audio switch module 400; when the third enable terminal EN3 outputs a high level to the power module 100, it will turn on 3.3V, 1.8V, and 1.2V to power the DAC module 300.
[0039] In one embodiment, reference Figure 1 The Bluetooth module 200 includes a Bluetooth chip, which includes an SD control terminal for connecting to the DAC module 300 and a SW control terminal for connecting to the audio switch module 400.
[0040] Specifically, refer to Figure 1 The Bluetooth module 200 controls the audio switch module 400 through the SW control terminal. When the SW control terminal outputs a high level, the DAC audio is selected to be output to the speaker module 600. When the SD control terminal outputs a low level, the 5181 audio is selected to be output to the speaker module 600. The Bluetooth module 200 controls the audio output of the DAC module 300 through the SD control terminal. When the SD control terminal outputs a high level, the DAC audio output is turned on. When the SD control terminal outputs a low level, the DAC audio output is turned off.
[0041] In one embodiment, reference Figure 1 and Figure 4 The earphone device further includes a touch module 700 , a voltage input terminal of the touch module 700 is connected to the power module 100 , and an output terminal of the touch module 700 is connected to the second input terminal of the Bluetooth module 200 .
[0042] Specifically, refer to Figure 1 and Figure 4 The touch module 700 can control the status of the headset. Every time the touch module 700 is touched, the touch module 700 will send a low pulse. The Bluetooth module 200 implements the corresponding functions by identifying the number of low pulses, such as pause, play, previous song, next song, etc.
[0043] In one embodiment, reference Figure 1 The earphone device further includes an infrared module 800 , a voltage input terminal of the infrared module 800 is connected to the power module 100 , and an output terminal of the infrared module 800 is connected to the third input terminal of the Bluetooth module 200 .
[0044] Specifically, refer to Figure 1 The infrared module 800 communicates with the Bluetooth module 200 through I2C, so that music can be automatically played when the headset is put on and music can be automatically paused when the headset is taken off.
[0045] In one embodiment, reference Figure 1 The earphone device further includes a Hall module 900 , a voltage input end of the Hall module 900 is connected to the power module 100 , and an output end of the Hall module 900 is connected to the fourth input end of the Bluetooth module 200 .
[0046] Specifically, refer to Figure 1 When the earphones are placed in the charging case, the Hall module 900 outputs a low level to the Bluetooth module 200 to automatically shut down; when the earphones are taken out of the charging case, the Hall module 900 outputs a high level to the Bluetooth module 200 to automatically turn on.
[0047] The utility model also provides a specific embodiment of a TWS headset.
[0048] A TWS headset includes a charging compartment and a left earphone and a right earphone arranged in the charging compartment, and the left earphone and the right earphone both include the earphone device as described above.
[0049] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Those skilled in the art may modify the technical solutions described in the above embodiments, or replace some of the technical features therein with equivalents; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present invention.
Claims
1. An earphone device, characterized in that: include: A power module, a Bluetooth module, a DAC module, an audio switch module, a microphone module and a speaker module, wherein the power module is used for supplying power, the output end of the microphone module is connected to the first input end of the Bluetooth module, the first output end of the Bluetooth module is connected to the first input end of the audio switch module, the second output end of the Bluetooth module is connected to the input end of the DAC module, the output end of the DAC module is connected to the second input end of the audio switch module, the output end of the audio switch module is connected to the input end of the speaker module, and the speaker module is used for playing audio.
2. The earphone device according to claim 1, wherein The DAC module includes an HM01 decoding chip, a signal input end of the HM01 decoding chip is connected to the Bluetooth module via an I2S bus, and a signal output end of the HM01 decoding chip is connected to the audio switch module.
3. The earphone device according to claim 2, wherein The HM01 decoding chip has a built-in audio power amplifier unit.
4. The earphone device according to claim 1, wherein The power supply module includes a battery and a DC-DC module. The voltage input end of the DC-DC module is connected to the voltage output end of the battery for power supply, and the input end of the DC-DC module is connected to the enable end of the Bluetooth module.
5. The earphone device according to claim 4, wherein The Bluetooth module includes a first enabling terminal, a second enabling terminal and a third enabling terminal, and the first enabling terminal, the second enabling terminal and the third enabling terminal are all connected to the DC-DC module to respectively control the power supply of different modules.
6. The earphone device according to claim 1, wherein The Bluetooth module includes a Bluetooth chip, and the Bluetooth chip includes an SD control terminal for connecting to the DAC module and a SW control terminal for connecting to the audio switch unit.
7. The earphone device according to claim 1, wherein It also includes a touch module, wherein the voltage input end of the touch module is connected to the power module, and the output end of the touch module is connected to the second input end of the Bluetooth module.
8. The earphone device according to claim 1, wherein It also includes an infrared module, wherein the voltage input terminal of the infrared module is connected to the power module, and the output terminal of the infrared module is connected to the third input terminal of the Bluetooth module.
9. The earphone device according to claim 1, wherein It also includes a Hall module, a voltage input end of the Hall module is connected to the power module, and an output end of the Hall module is connected to the fourth input end of the Bluetooth module.
10. A TWS headset, characterized in that: The TWS earphones include a charging compartment and a left earphone and a right earphone arranged in the charging compartment, and the left earphone and the right earphone both include the earphone device according to any one of claims 1 to 9.