CN210491177U - Bluetooth sound box integrated with wireless charging module - Google Patents
Bluetooth sound box integrated with wireless charging module Download PDFInfo
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- CN210491177U CN210491177U CN201921550286.5U CN201921550286U CN210491177U CN 210491177 U CN210491177 U CN 210491177U CN 201921550286 U CN201921550286 U CN 201921550286U CN 210491177 U CN210491177 U CN 210491177U
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Abstract
The utility model discloses an integrated wireless charging module's bluetooth sound, include: the Bluetooth control module is respectively connected with a power supply module, a power amplifier module, a starting button, a wireless charging module and a loudspeaker connected with the power amplifier module, wherein the power supply module comprises a charging protection circuit. The utility model discloses increase wireless charging module in bluetooth sound for bluetooth sound can provide wireless charging for smart mobile phone, panel computer, and convenience of customers uses. Further, increase the protection circuit that charges, the too big impact that leads to charging IC to receive the high voltage of avoiding micro USB to insert to the protection circuit.
Description
Technical Field
The utility model relates to a bluetooth sound technical field especially relates to an integrated wireless charging module's bluetooth sound.
Background
The Bluetooth sound box is a built-in Bluetooth chip, replaces sound equipment connected with traditional wires through Bluetooth connection, and is connected with Bluetooth playing equipment such as a mobile phone, a tablet personal computer and a notebook computer to achieve the purpose of convenience and quickness. Because of its portability, the producer will integrate multiple functions on the bluetooth sound box, if the authorized bulletin number is: CN 208299997U, theme are multi-functional bluetooth sound, and it is integrated on bluetooth sound with precious function that charges, but this technique only can wired charging, if do not carry the charging wire, then do not have the way to the smart mobile phone that needs to charge, panel computer etc. charge.
Accordingly, the prior art is deficient and needs improvement.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the utility model provides an integrated wireless charging module's bluetooth sound, conveniently charges to smart mobile phone, panel computer when not having the charging wire.
The technical scheme of the utility model as follows: the utility model provides an integrated wireless charging module's bluetooth sound, includes: the Bluetooth control module is respectively connected with a power supply module, a power amplifier module, a starting button, a wireless charging module and a loudspeaker connected with the power amplifier module.
The power module includes: the micro USB interface is electrically connected with a voltage input end of the charging IC, a voltage output end of the charging IC is connected with the anode of the storage battery, and the cathode of the storage battery is grounded; the Bluetooth control module is connected with the anode of the storage battery, and the Bluetooth control module and the power amplifier module are connected with the anode of the storage battery. The principle of charging the storage battery by the external power supply is as follows: the external power supply is connected through the micro USB interface and is transmitted to the voltage input end of the charging IC, and the voltage output end of the charging IC outputs stable voltage to the storage battery, so that the storage battery is charged.
The wireless module of charging includes: the wireless charging device comprises a wireless charging chip, an operational amplifier, a charging coil, a boosting chip and a power control module, wherein the wireless charging chip, the operational amplifier and the power control module are respectively electrically connected with a voltage output end of the boosting chip, a voltage input end of the boosting chip is connected with an anode of a storage battery, the operational amplifier is electrically connected with the wireless charging chip and a charging line, the power control module is electrically connected with the wireless charging chip, and the charging coil is electrically connected with the power control module. The charging principle of the wireless charging module for the smart phone and the tablet personal computer is as follows: the voltage input end of the boosting chip obtains the voltage input of the storage battery, the voltage output end of the boosting chip outputs stable 5V voltage, and the 5V voltage supplies power to the wireless charging chip, the operational amplifier and the power control module. When a load exists, the FB detects a signal, the signal is amplified to the wireless charging control chip through the operational amplifier, and the wireless charging control chip outputs different PWM signals to the power control module to control the wireless charging output power of the charging coil. TEST is to detect the output current of wireless charging, and when too high, the wireless charging wafer can suitably reduce output power.
Bluetooth control module is used for being connected with other Bluetooth equipment, acquires other Bluetooth equipment's audio data and decodes and carry for power amplifier module, power amplifier module gives the signal that Bluetooth control module sent and enlargies and export for loudspeaker, loudspeaker are used for the broadcast audio frequency. The power module is used for supplying power to all electronic components. The bluetooth sound passes through bluetooth control module and is connected the back with other bluetooth equipment, alright in order to acquire the audio data of other bluetooth equipment and decode and carry for the power amplifier module, and the power amplifier module is sent for loudspeaker broadcast after enlargiing. The wireless charging module is used for charging the smart phone and the tablet personal computer. The starting key is used for starting the Bluetooth control module.
Further, integrated wireless charging module's bluetooth sound still includes: the Bluetooth module is electrically connected with the storage battery, and the storage battery comprises a pickup module, a USB interface, an audio input interface module and a TF card interface module which are respectively electrically connected with the Bluetooth control module, wherein the USB interface is connected with the positive pole of the storage battery. The pickup module is used for Bluetooth communication, the USB interface is used for accessing a USB flash disk and charging in a wired mode, the audio input interface module is used for accessing wired audio, and the TF card interface module is used for inserting the TF memory card.
Furthermore, the pickup module adopts a 4013 patch microphone, and the audio input interface module adopts an AUX interface.
Further, the bluetooth sound of integrated wireless module of charging still includes KEY module, the KEY includes 6 buttons. The KEY KEY module is used for manually controlling the Bluetooth sound box of the integrated wireless charging module.
Further, the power module further includes: the micro USB interface is electrically connected with the voltage input end of the charging IC through the charging protection circuit; the charge protection circuit includes: the voltage stabilizing diode, the first divider resistor 32, the second divider resistor, the third divider resistor, the fourth divider resistor, the first NPN type triode, the second NPN type triode and the first P channel MOS tube; the negative stage of the voltage regulator diode is electrically connected with the micro USB interface, two ends of the first divider resistor 32 are respectively connected with the positive electrode of the voltage regulator diode and the base electrode of the first NPN type triode, one end of the second divider resistor is connected with the base electrode of the first NPN type triode, the other end of the second divider resistor is grounded, one end of the third divider resistor is connected with the negative electrode of the voltage regulator diode, the other end of the third divider resistor is connected with the collector electrode of the first NPN type triode, the emitter electrode of the first NPN type triode is grounded, the collector electrode of the first NPN type triode is connected with the base electrode of the second NPN type triode, the emitter electrode of the second NPN type triode is grounded, two ends of the fourth divider resistor are respectively connected with the negative electrode of the voltage regulator diode and the collector electrode of the second NPN type triode, the G stage of the first P-channel MOS tube is connected with the collector electrode, and the S level of the first P-channel MOS tube is connected with the cathode of the voltage stabilizing diode, and the D level of the first P-channel MOS tube is connected with the voltage input end of the charging IC.
Further, the principle of the charge protection circuit is as follows: the external power supply inputs VUSB voltage through micro USB, when the VUSB voltage is not more than 6.2V, the base electrode of the second NPN type triode obtains a voltage, the collector electrode of the second NPN type triode is conducted with the emitter electrode of the second NPN type triode, the G pole of the first P channel MOS tube is grounded, the voltage of the G pole of the first P channel MOS tube is smaller than the voltage of the S pole of the first P channel MOS tube, the S pole and the D pole of the first P channel MOS tube are conducted, the VUSB is transmitted to the voltage input end of the charging IC, and the voltage output end of the charging IC can output stable voltage to charge the storage battery; when the voltage of the VUSB is larger than 6.2V, the voltage-stabilizing diode is broken down, the voltage-stabilizing diode is conducted, the base electrode of the first NPN type triode obtains a voltage, the collector electrode of the first NPN type triode is conducted with the emitter electrode of the first NPN type triode, the base electrode of the second NPN type triode is grounded, the second NPN type triode is not conducted, the voltage of the G electrode of the first P channel MOS tube is equal to the voltage of the S electrode of the first P channel MOS tube, the S electrode and the D electrode of the first P channel MOS tube are cut off, the VUSB cannot be transmitted to the voltage input end of the charging IC, charging is stopped, and the charging IC is protected from high-voltage impact, and.
Further, the model of the bluetooth chip that bluetooth control module adopted is AC6928B, the model of the power amplifier chip that power amplifier module adopted is LTK5129, and the model of NTC temperature sensor is MF52-502FB34 3470F, the model of wireless chip that charges is MK8PC014SA or CD4069, operational amplifier's model is LM358, the IC's that charges model is 4054.
Furthermore, the models of the first NPN type triode and the second NPN type triode are 3904, and the model of the first P-channel MOS transistor is AO 3401.
Furthermore, the wireless charging module further comprises an NTC temperature sensor, the positive electrode of the NTC temperature sensor is connected with the voltage input end of the charging IC through a current-limiting resistor, the negative electrode of the NTC temperature sensor is grounded, and the positive electrode of the NTC temperature sensor is connected with the wireless charging chip. The NTC temperature sensor is used for detecting the temperature, and when the temperature of the charging coil is too high, wireless charging is stopped.
According to the above technical scheme, the utility model provides an integrated wireless charging module's bluetooth sound increases wireless charging module in bluetooth sound for bluetooth sound can provide wireless charging for smart mobile phone, panel computer, and convenience of customers uses. Further, increase the protection circuit that charges, the too big impact that leads to charging IC to receive the high voltage of avoiding micro USB to insert to the protection circuit.
Drawings
FIG. 1 is a functional block diagram of the present invention;
FIG. 2 is a schematic circuit diagram of a Bluetooth control module;
FIG. 3 is a circuit schematic of a power module;
FIG. 4 is a schematic circuit diagram of a power amplifier module and a horn;
FIG. 5 is a schematic circuit diagram of the start button;
FIG. 6 is a schematic circuit diagram of a pickup module;
FIG. 7 is a circuit schematic of a USB interface;
FIG. 8 is a circuit schematic of the TF card interface module;
FIG. 9 is a schematic circuit diagram of a wireless charging chip and an NTC temperature sensor;
FIG. 10 is a circuit diagram of a boost chip;
FIG. 11 is a circuit diagram of the power control module and the charging coil;
fig. 12 is a circuit diagram of the operational amplifier.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-12, the utility model provides an integrated wireless charging module's bluetooth sound, include: the Bluetooth control module 10, a power module 20, a power amplifier module 50, a start button 60, a wireless charging module 70, and a speaker 51 connected to the power amplifier module 50, which are electrically connected to the Bluetooth control module 10, respectively.
The power supply module 20 includes: the micro USB interface 21 is electrically connected with a voltage input end of the charging IC22, a voltage output end of the charging IC22 is connected with a positive electrode of the storage battery 23, and a negative electrode of the storage battery 23 is grounded; the Bluetooth control module 10 is connected with the anode of the storage battery 23, and the Bluetooth control module 10 and the power amplifier module 50 are connected with the anode of the storage battery. The principle of charging the battery 23 by the external power supply is as follows: an external power supply is connected through the micro USB interface 21 and is transmitted to the voltage input end of the charging IC22, and the voltage output end of the charging IC22 outputs stable voltage to the storage battery 23, so that the storage battery 23 is charged.
The wireless charging module 70 includes: wireless chip 71 that charges, operational amplifier 72, charging coil 73, boost chip 74, power control module 75, wireless chip 71 that charges, operational amplifier 72, power control module 75 respectively with boost chip 74's voltage output end electric connection, boost chip 74's voltage input end is connected with the positive pole of battery 23, operational amplifier 72 with wireless chip 71 that charges, the linear electric connection that charges, power control module 75 with wireless chip 71 electric connection charges, charging coil 73 with power control module 75 electric connection. The charging principle of the wireless charging module 70 for the smart phone and the tablet computer is as follows: the voltage input end of the boost chip 74 obtains the voltage input of the storage battery 23, the voltage output end of the boost chip 74 outputs a stable 5V voltage, and the 5V voltage supplies power to the wireless charging chip 71, the operational amplifier 72 and the power control module 75. When there is a load, the FB detects a signal, and the signal is amplified by the operational amplifier 72 to the wireless charging control chip, and the wireless charging control chip outputs a different PWM signal to the power control module 75 to control the output power of the wireless charging of the charging coil 73. TEST is to detect the output current of the wireless charging, and when the output current is too high, the wireless charging chip 71 will reduce the output power appropriately. In this embodiment, the power control module 75 employs two N-channel MOS transistors 76 and two second P-channel MOS transistors 77 to implement power control on the coil, the G poles of the two N-channel MOS transistors 76 and the G poles of the two second P-channel MOS transistors 77 are respectively connected to the wireless charging chip 71, and the wireless charging chip 71 implements control on charging the charging coil 73 by controlling conduction between the D poles of the G poles of the two N-channel MOS transistors 76 and the S poles thereof and between the D poles of the two second P-channel MOS transistors 77 and the S poles thereof. The model of the N-channel MOS tube 76 is AO3402, and the model of the second P-channel MOS tube 77 is AO 3401.
Bluetooth control module 10 is used for being connected with other Bluetooth device, acquires other Bluetooth device's audio data and decodes and carry for power amplifier module 50, power amplifier module 50 gives the signal that Bluetooth control module 10 sent and enlargies and export for loudspeaker 51, loudspeaker 51 is used for playing the audio frequency. The power module 20 is used for supplying power to each electronic component. After the bluetooth sound equipment is connected with other bluetooth devices through bluetooth control module 10, alright in order to acquire the audio data of other bluetooth devices and decode and carry for power amplifier module 50, power amplifier module 50 sends for loudspeaker 51 broadcast after enlarging. The wireless charging module 70 is used for charging a smart phone and a tablet computer. The start button 60 is used for starting the bluetooth control module 10.
The bluetooth sound of integrated wireless module of charging still includes: the sound pickup module 11, the USB interface 12, the audio input interface module 13 and the TF card interface module 14 are respectively and electrically connected with the Bluetooth control module 10, and the USB interface 12 is connected with the anode of the storage battery. The pickup module 11 is used for bluetooth communication, the USB interface 12 is used for accessing a USB disk and wired charging, the audio input interface module 13 is used for accessing wired audio, and the TF card interface module 14 is used for inserting a TF memory card.
The pickup module 11 adopts a 4013 patch microphone, and the audio input interface module 13 adopts an AUX interface.
The Bluetooth sound box integrated with the wireless charging module further comprises a KEY KEY module 90, wherein the KEY KEY 90 comprises 6 KEYs. The KEY module 90 is used for manually controlling the bluetooth sound equipment of the integrated wireless charging module.
The power module 20 further includes: the micro USB interface 21 is electrically connected with the voltage input end of the charging IC22 through the charging protection circuit; the charge protection circuit includes: a voltage regulator diode 31, a first voltage-dividing resistor 32, a second voltage-dividing resistor 33, a third voltage-dividing resistor 34, a fourth voltage-dividing resistor 35, a first NPN-type triode 36, a second NPN-type triode 37, and a first P-channel MOS transistor 38; the negative stage of the zener diode 31 is electrically connected to the micro USB interface 21, two ends of the first divider resistor 32 are respectively connected to the positive electrode of the zener diode 31 and the base of the first NPN transistor 36, one end of the second divider resistor 33 is connected to the base of the first NPN transistor 36, the other end is grounded, one end of the third divider resistor 34 is connected to the negative electrode of the zener diode 31, the other end is connected to the collector of the first NPN transistor 36, the emitter of the first NPN transistor 36 is grounded, the collector of the first NPN transistor 36 is connected to the base of the second NPN transistor 37, the emitter of the second NPN transistor 37 is grounded, two ends of the fourth divider resistor 35 are respectively connected to the negative electrode of the zener diode 31 and the collector of the second NPN transistor 37, the G stage of the first pmos transistor 38 is connected to the collector of the second NPN transistor 37, the S-stage of the first P-channel MOS 38 is connected to the negative electrode of the zener diode 31, and the D-stage of the first P-channel MOS 38 is connected to the voltage input terminal of the charging IC 22.
The principle of the charging protection circuit is as follows: the external power supply inputs VUSB voltage through micro USB, when the VUSB voltage is not more than 6.2V, the base electrode of the second NPN type triode 37 obtains a voltage, the collector electrode of the second NPN type triode 37 is conducted with the emitter electrode of the second NPN type triode 37, the G pole of the first P channel MOS tube 38 is grounded, the voltage of the G pole of the first P channel MOS tube 38 is smaller than the voltage of the S pole of the first P channel MOS tube 38, the S pole and the D pole of the first P channel MOS tube 38 are conducted, the VUSB is input to the voltage input end of the charging IC22, and the voltage output end of the charging IC22 can output stable voltage to charge the storage battery 23; when the voltage of VUSB is greater than 6.2V, the zener diode 31 is broken down, the zener diode 31 is turned on, the base of the first NPN transistor 36 obtains a voltage, the collector of the first NPN transistor 36 is turned on with the emitter, the base of the second NPN transistor 37 is grounded, and the second NPN transistor 37 is turned off, so that the voltage of the G pole of the first P-channel MOS transistor 38 is equal to the voltage of the S pole thereof, the S pole and the D pole of the first P-channel MOS transistor 38 are turned off, VUSB cannot be input to the voltage input terminal of the charging IC22, and charging is stopped, thereby protecting the charging IC22 from impact of high voltage and protecting the circuit.
The model of the bluetooth chip that bluetooth control module 10 adopted is AC6928B, the model of the power amplifier chip that power amplifier module 50 adopted is LTK5129, and NTC temperature sensor's model is MF52-502FB3470F, the model of wireless chip 71 that charges is MK8PC014SA, operational amplifier 72's model is LM358, the model of IC22 that charges is 4054. The model number of the boosting chip is 4004.
The models of the first NPN type triode 36 and the second NPN type triode 37 are 3904, and the model of the first P-channel MOS transistor 38 is AO 3401.
The wireless charging module 70 further comprises an NTC temperature sensor 78, the positive electrode of the NTC temperature sensor 77 is connected with the voltage input end of the charging IC22 through a current-limiting resistor, the negative electrode of the NTC temperature sensor 78 is grounded, and the positive electrode of the NTC temperature sensor 78 is connected with the wireless charging chip 71. The NTC temperature sensor 77 is used for temperature detection, and when the temperature of the charging coil 73 is too high, wireless charging is stopped. The model of the NTC temperature sensor 78 is MF 52-B.
To sum up, the utility model provides an integrated wireless charging module's bluetooth sound increases wireless charging module in bluetooth sound for bluetooth sound can provide wireless charging for smart mobile phone, panel computer, and convenience of customers uses. Further, increase the protection circuit that charges, the too big impact that leads to charging IC to receive the high voltage of avoiding micro USB to insert to the protection circuit.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides an integrated wireless charging module's bluetooth sound, its characterized in that includes: the Bluetooth control module comprises a power supply module, a power amplification module, a starting button, a wireless charging module and a loudspeaker, wherein the power supply module, the power amplification module, the starting button and the wireless charging module are respectively and electrically connected with the Bluetooth control module;
the power module includes: the micro USB interface is electrically connected with a voltage input end of the charging IC, a voltage output end of the charging IC is connected with the anode of the storage battery, and the cathode of the storage battery is grounded; the Bluetooth control module is connected with the anode of the storage battery, and the Bluetooth control module and the power amplifier module are connected with the anode of the storage battery;
the wireless module of charging includes: the wireless charging device comprises a wireless charging chip, an operational amplifier, a charging coil, a boosting chip and a power control module, wherein the wireless charging chip, the operational amplifier and the power control module are respectively electrically connected with a voltage output end of the boosting chip, a voltage input end of the boosting chip is connected with an anode of a storage battery, the operational amplifier is electrically connected with the wireless charging chip and a charging line, the power control module is electrically connected with the wireless charging chip, and the charging coil is electrically connected with the power control module.
2. The bluetooth speaker integrated with a wireless charging module according to claim 1, further comprising: the Bluetooth module is electrically connected with the storage battery, and the storage battery comprises a pickup module, a USB interface, an audio input interface module and a TF card interface module which are respectively electrically connected with the Bluetooth control module, wherein the USB interface is connected with the positive pole of the storage battery.
3. The Bluetooth speaker integrated with a wireless charging module as claimed in claim 2, wherein the pickup module employs a 4013 patch microphone, and the audio input interface module employs an AUX interface.
4. The Bluetooth speaker integrated with a wireless charging module as claimed in claim 1, further comprising a KEY KEY module, wherein the KEY KEY comprises 6 KEYs.
5. The bluetooth speaker integrated with a wireless charging module as claimed in claim 1, wherein the power module further comprises: the micro USB interface is electrically connected with the voltage input end of the charging IC through the charging protection circuit; the charge protection circuit includes: the voltage stabilizing diode, the first divider resistor 32, the second divider resistor, the third divider resistor, the fourth divider resistor, the first NPN type triode, the second NPN type triode and the first P channel MOS tube; the negative stage of the voltage regulator diode is electrically connected with the micro USB interface, two ends of the first divider resistor 32 are respectively connected with the positive electrode of the voltage regulator diode and the base electrode of the first NPN type triode, one end of the second divider resistor is connected with the base electrode of the first NPN type triode, the other end of the second divider resistor is grounded, one end of the third divider resistor is connected with the negative electrode of the voltage regulator diode, the other end of the third divider resistor is connected with the collector electrode of the first NPN type triode, the emitter electrode of the first NPN type triode is grounded, the collector electrode of the first NPN type triode is connected with the base electrode of the second NPN type triode, the emitter electrode of the second NPN type triode is grounded, two ends of the fourth divider resistor are respectively connected with the negative electrode of the voltage regulator diode and the collector electrode of the second NPN type triode, the G stage of the first P-channel MOS tube is connected with the collector electrode, and the S level of the first P-channel MOS tube is connected with the cathode of the voltage stabilizing diode, and the D level of the first P-channel MOS tube is connected with the voltage input end of the charging IC.
6. The Bluetooth speaker integrated with the wireless charging module as claimed in claim 5, wherein the first NPN transistor and the second NPN transistor are 3904, and the first P-channel MOS transistor is AO 3401.
7. The bluetooth speaker integrated with a wireless charging module as claimed in claim 1, wherein the wireless charging module further comprises an NTC temperature sensor, a positive electrode of the NTC temperature sensor is connected to the voltage input terminal of the charging IC through a current-limiting resistor, a negative electrode of the NTC temperature sensor is grounded, and a positive electrode of the NTC temperature sensor is connected to the wireless charging chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921550286.5U CN210491177U (en) | 2019-09-17 | 2019-09-17 | Bluetooth sound box integrated with wireless charging module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921550286.5U CN210491177U (en) | 2019-09-17 | 2019-09-17 | Bluetooth sound box integrated with wireless charging module |
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| Publication Number | Publication Date |
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| CN210491177U true CN210491177U (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921550286.5U Active CN210491177U (en) | 2019-09-17 | 2019-09-17 | Bluetooth sound box integrated with wireless charging module |
Country Status (1)
| Country | Link |
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| CN (1) | CN210491177U (en) |
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- 2019-09-17 CN CN201921550286.5U patent/CN210491177U/en active Active
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