Multifunctional earphone charging bin and Bluetooth earphone

Abstract

The utility model discloses a multifunctional earphone charging cabin and a Bluetooth earphone. The charging cabin comprises a charging module, a boost module, a master control module, a Bluetooth module and a gravity sensing module. The input end of the charging module is connected with an external power supply, and the output end is connected with the master control module, the boost module and the battery. The output end of the boosting module is connected with the earphone charging pile; the Bluetooth module is connected with the main control module and is used for being in paired connection with an earphone; the gravity sensing module is connected with the main control module and is used for detecting the movement change of the charging bin; the main control module can send an alarm signal to the earphone through the Bluetooth module when the gravity sensing module detects that the charging bin falls off; through the circuit, whether the charging bin falls or not can be judged according to the detected motion state of the charging bin, a user is reminded, loss is avoided, and the circuit has very good practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of audio equipment, especially a multifunctional earphone charging bin and Bluetooth earphone. BACKGROUND

[0002] The earphone commonly used in the market is divided into wired earphone and wireless earphone, the audio signal transmission of wired earphone is stable, and it is superior to wireless earphone in the aspect of pursuing high sound quality, but wired earphone needs to be connected with a playing device through wire, the wire is easy to be wound and knotted, which influences wearing and use, and also limits user posture, true wireless stereo earphone is composed of charging bin and left and right Bluetooth earphones, the charging bin can accommodate left and right Bluetooth earphones and charge left and right Bluetooth earphones, thereby prolonging the use time of Bluetooth earphone, but the charging bin of existing Bluetooth earphone is only used for earphone storage and charging, and there is still room for improvement in the aspects of intelligence and user interaction experience. SUMMARY

[0003] The utility model aims at at least solving one of the technical problems existing in the prior art.

[0004] The utility model discloses a kind of multifunctional earphone charging bins and Bluetooth earphones.

[0005] The input end of the charging module is connected with external power supply, and the output end is connected with the main control module, the boost module and the battery respectively;

[0006] The output end of the boost module is connected with earphone charging pile;

[0007] The Bluetooth module is connected with the main control module, and is used for pairing connection with earphone;

[0008] The gravity sensing module is connected with the main control module, and is used for detecting the motion change of charging bin;

[0009] The main control module can send alarm signal to earphone through Bluetooth module when detecting that charging bin falls by gravity sensing module.

[0010] As one of the preferred embodiments of the utility model, the charging module includes charging chip U1, inductor L4, resistance R23, resistance R29-R30, resistance R34-R36, resistance R40-R41, resistance R43, capacitor C22-24 and inductor L4, one end of inductor L4 is connected with one end of resistance R34 and external power supply respectively, the other end of inductor L4 is connected with one end of capacitor C22, one end of capacitor C23, one end of resistance R23, I N pin of charging chip U1 and one end of resistance R36 respectively, the other end of resistance R34 is connected with DC_DET end and is connected with GND end through resistance R40, the other end of resistance R36 is connected with EN pin of charging chip U1, one end of resistance R41 and main control module, BAT pin of charging chip U1 is connected with one end of capacitor C24 and the third pin of battery respectively, TS pin of charging chip U1 is connected with the other end of resistance R23, one end of resistance R29 and one end of resistance R30 respectively, I SET pin of charging chip U1 is connected with one end of resistance R29, one end of resistance R30 and GND end through resistance R35 respectively, the second pin of battery is connected with main control module through resistance R43, the other end of capacitor C22, the other end of capacitor C23, the other end of resistance R41, the other end of capacitor C24 and the first pin of battery are connected with GND end.

[0011] As one of the preferred embodiments of the utility model, a kind of multifunctional earphone charging bin further include indicator light LED_G and resistance R28, one end of indicator light LED_G is connected with the other end of inductor L4, the other end of indicator light LED_G is connected with the FULL pin of charging chip U1 through resistance R28.

[0012] As one of the preferred embodiments of the utility model, the boost module includes boost chip U2, capacitor C8-C9, capacitor C16, capacitor C20, capacitor C25, inductor L2-L3, resistance R16, resistance R20 and resistance R24, one end of capacitor C16 is connected with the third pin of battery, one end of capacitor C20 and one end of inductor L3 respectively, the other end of inductor L3 is connected with one end of capacitor C8, one end of capacitor C9, one end of inductor L2 and I N pin of boost chip U2 respectively, the other end of inductor L2 is connected with the FULL pin of boost chip U2, the EN pin of boost chip U2 is connected with BST_EN end through resistance R16 and is connected with GND end through resistance R20, the OUT pin of boost chip U2 is connected with one end of capacitor C25, one end of resistance R19 and earphone charging pile respectively, the FB pin of boost chip U2 is connected with the other end of capacitor C25, the other end of resistance R19 and one end of resistance R24 respectively, the other end of capacitor C8, the other end of capacitor C9, the other end of capacitor C16, the other end of capacitor C20 and the other end of resistance R24 are connected with GND end.

[0013] As one of the preferred embodiments of the utility model, a multifunctional earphone charging bin further comprises a management module connected with the main control module and the voltage boosting module respectively.

[0014] As one of the preferred embodiments of the utility model, the management module comprises MOS tube Q1, MOS tube Q3, triode Q2, resistance R6-R7, resistance R11, resistance R13, resistance R15, capacitor C2 and static diode D3-D4, the drain of MOS tube Q3 is connected with L_VDET end, one end of static diode D3 and the positive pole of charging pile TP1 respectively, the source of MOS tube Q3 is connected with the source of MOS tube Q1 and one end of resistance R6 respectively, the gate of MOS tube Q3 is connected with the gate of MOS tube Q1, the collector of triode Q2 and the other end of resistance R6 respectively, the drain of MOS tube Q3 is connected with R_VDET end, one end of static diode D4 and the positive pole of charging pile TP2 respectively, the base of triode Q2 is connected with one end of resistance R11 and one end of resistance R13 respectively, the other end of resistance R11 is connected with the main control module, the negative pole of charging pile TP1 is connected with one end of resistance R7, one end of resistance R15 and the negative pole of charging pile TP2 respectively, the other end of resistance R7 is connected with one end of capacitor C2 and GND end respectively, the other end of resistance R15 is connected with the main control module and the other end of capacitor C2 respectively, the other end of static diode D3, the other end of static diode D4, the other end of resistance R13 and the emitter of triode Q2 are connected with GND end.

[0015] As one of the preferred embodiments of the utility model, a multifunctional earphone charging bin further comprises a Hall induction module connected with the main control module, for detecting whether the earphone is located in the charging bin.

[0016] As one of the preferred embodiments of the utility model, a multifunctional earphone charging bin further comprises a display module connected with the main control module.

[0017] As one of the preferred embodiments of the utility model, a multifunctional earphone charging bin further comprises a switch SW1 connected with the main control module.

[0018] A Bluetooth earphone comprising the earphone charging bin.

[0019] The utility model discloses a beneficial effect: a kind of multifunctional earphone charging bin and bluetooth earphone, charging bin includes charging module, boost module, main control module, bluetooth module and gravity sensing module;The input end of charging module is connected with external power supply, output end is connected with main control module, boost module and battery respectively;The output end of boost module is connected with earphone charging pile;Bluetooth module is connected with main control module, for and earphone pairing connection;Gravity sensing module is connected with main control module, for detecting the motion change of charging bin;Main control module can send alarm signal to earphone through bluetooth module when gravity sensing module detects that charging bin falls;Through the above-mentioned circuit, whether charging bin falls and reminds user according to the detected charging bin motion state, avoid missing, with very good practicality. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0021] Figure 1 It is a kind of principle block diagram of multifunctional earphone charging bin;

[0022] Figure 2 It is the circuit principle diagram of charging module;

[0023] Figure 3 It is the circuit principle diagram of boost module;

[0024] Figure 4 It is part of the circuit principle diagram of multifunctional earphone charging bin;

[0025] Figure 5 It is the circuit principle diagram of management module. DETAILED DESCRIPTION

[0026] This part will describe the specific embodiment of the utility model in detail, and the preferred embodiment of the utility model is shown in the drawings, and the effect of the drawing is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0027] In the description of the utility model, the meaning of multiple is two or more, greater than, less than, exceed and the like are not included in the number, above, below, within and the like are included in the number.If there is description to first, second, it is only used for distinguishing technical features for purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0028] In the description of the utility model, it is understood that the orientation description, such as the orientation or positional relationship of the indication of up, down, front, back, left, right and the like, is based on the orientation or positional relationship shown in the drawing, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as the limitation of the utility model.

[0029] In the utility model, unless otherwise explicitly limited, the words such as "arrangement", "installation", "connection" should be understood broadly, for example, can be directly connected, also can be indirectly connected through intermediate medium;Can be fixedly connected, can be detachably connected, can also be integrally formed;Can be mechanical connection;It can be the communication or interaction relationship of two elements inside two elements.

[0030] Referring to Figures 1 to 5 A multifunctional earphone charging bin, including charging module 10, boost module 20, main control module 30, bluetooth module 40 and gravity sensing module 50;

[0031] The input end of charging module 10 is connected with external power supply, and the output end is connected with main control module 30, boost module 20 and battery respectively;

[0032] The output end of boost module 20 is connected with earphone charging pile;

[0033] Bluetooth module 40 is connected with main control module 30, and is used for pairing connection with earphone;

[0034] Gravity sensing module 50 is connected with main control module 30, and is used for detecting the motion change of charging bin;

[0035] Main control module 30 can send alarm signal to earphone through bluetooth module 40 when gravity sensing module 50 detects that charging bin falls.

[0036] 1) in the utility model, when the charging interface is connected with external power supply, lithium battery in the charging bin will be charged through charging module 10, and boost module 20 is used to boost lithium battery to 5V and charge left and right earphones, specifically:

[0037] Referring to Figures 1-2In some embodiments, the charging module 10 includes a charging chip U1, an inductor L4, resistors R23, R29-R30, R34-R36, R40-R41, R43, capacitors C22-24, and the inductor L4. One end of the inductor L4 is connected to one end of the resistor R34 and an external power source, respectively. The other end of the inductor L4 is connected to one end of the capacitor C22, one end of the capacitor C23, one end of the resistor R23, the I N pin of the charging chip U1, and one end of the resistor R36, respectively. The other end of the resistor R34 is connected to the DC_DET terminal and the GND terminal through the resistor R40. The other end of the resistor R36 is connected to the EN pin of the charging chip U1, one end of the resistor R41, and the master control module 30. The BAT pin of the charging chip U1 is connected to one end of the capacitor C24 and the third pin of the battery, respectively. The TS pin of the charging chip U1 is connected to the other end of the resistor R23, one end of the resistor R29, and one end of the resistor R30, respectively. The I SET pin of the charging chip U1 is connected to one end of the resistor R29, one end of the resistor R30, and the GND terminal through the resistor R35, respectively. The second pin of the battery is connected to the master control module 30 through the resistor R43. The other end of the capacitor C22, the other end of the capacitor C23, the other end of the resistor R41, the other end of the capacitor C24, and the first pin of the battery are connected to the GND terminal.

[0038] In other embodiments, the multifunction earphone charging box further includes an indicator light LED_G and a resistor R28. One end of the indicator light LED_G is connected to the other end of the inductor L4. The other end of the indicator light LED_G is connected to the FULL pin of the charging chip U1 through the resistor R28. The charging status is indicated by the indicator light LED_G, for example, a red light is on when charging, and a green light is on when fully charged.

[0039] Among them, the resistor R21 and the resistor R25 are used to fix the adapter output voltage to 5V, preventing the voltage from being too high and burning out the charging chip U1. The power supply VBUS is connected to the power supply terminal of the charging chip U1 after passing through the inductor L4. The resistors R34 and R40 are voltage dividing resistors. The voltage after voltage division is sent to the master control module 30 to inform the master control module 30 whether it is in a charging state. The 5th pin of the charging chip U1 is the battery terminal. The 1st pin of the charging chip is the temperature detection. The 8th pin of the charging chip is the switch.

[0040] 2) Refer to Figure 1 and Figure 3In some embodiments, the voltage boosting module 20 comprises a voltage boosting chip U2, capacitors C8-C9, capacitor C16, capacitor C20, capacitor C25, inductors L2-L3, resistor R16, resistor R20 and resistor R24. One end of the capacitor C16 is connected to the third pin of the battery, one end of the capacitor C20 and one end of the inductor L3 respectively. The other end of the inductor L3 is connected to one end of the capacitor C8, one end of the capacitor C9, one end of the inductor L2 and the IN pin of the voltage boosting chip U2 respectively. The other end of the inductor L2 is connected to the FULL pin of the voltage boosting chip U2. The EN pin of the voltage boosting chip U2 is connected to the BST_EN end through the resistor R16 and connected to the GND end through the resistor R20. The OUT pin of the voltage boosting chip U2 is connected to one end of the capacitor C25, one end of the resistor R19 and the earphone charging pile respectively. The FB pin of the voltage boosting chip U2 is connected to the other end of the capacitor C25, the other end of the resistor R19 and one end of the resistor R24 respectively. The other end of the capacitor C8, the other end of the capacitor C9, the other end of the capacitor C16, the other end of the capacitor C20 and the other end of the resistor R24 are connected to the GND end.

[0041] Wherein U2 is a voltage boosting chip, the battery voltage enters the 4 pin of the voltage boosting chip U2 through the inductor L3, the 6 pin of the voltage boosting chip U2 and the inductor L2 form a BOOST voltage boosting circuit, the 5 pin of the voltage boosting chip U2 is a voltage detection pin to stabilize the output voltage at 5V, and the 1 pin of the voltage boosting chip U2 is a 5V output pin.

[0042] 3) Refer to Figure 1 and Figure 5In some embodiments, the multifunctional earphone charging bin further comprises a management module 60 connected with the master control module 30 and the voltage boosting module 20 respectively; as a preferred embodiment of the management module 60, the management module 60 comprises MOS tube Q1, MOS tube Q3, triode Q2, resistors R6-R7, resistor R11, resistor R13, resistor R15, capacitor C2 and static diode D3-D4, the drain of the MOS tube Q3 is connected with the L_VDET end, one end of the static diode D3 and the positive pole of the charging post TP1 respectively, the source of the MOS tube Q3 is connected with the source of the MOS tube Q1 and one end of the resistor R6 respectively, the gate of the MOS tube Q3 is connected with the gate of the MOS tube Q1, the collector of the triode Q2 and the other end of the resistor R6 respectively, the drain of the MOS tube Q3 is connected with the R_VDET end, one end of the static diode D4 and the positive pole of the charging post TP2 respectively, the base of the triode Q2 is connected with one end of the resistor R11 and one end of the resistor R13 respectively, the other end of the resistor R11 is connected with the master control module 30, the negative pole of the charging post TP1 is connected with one end of the resistor R7, one end of the resistor R15 and the negative pole of the charging post TP2 respectively, the other end of the resistor R7 is connected with one end of the capacitor C2 and the GND end respectively, the other end of the resistor R15 is connected with the master control module 30 and the other end of the capacitor C2 respectively, the other end of the static diode D3, the other end of the static diode D4, the other end of the resistor R13 and the emitter of the triode Q2 are connected with the GND end.

[0043] Specifically, the MOS tube Q1 and the MOS tube Q3 are for the charging management of the earphone, which can turn off the power supply when detecting that the earphone charging is completed; the resistor R7 is a current detection resistor, one end of the resistor R7 is grounded, the other end of the resistor R7 is connected with the resistor R15, the other end of the resistor R15 is connected with the capacitor C2 and connected to the master control module 30, which can filter out the noise of the resistor R15 and reduce the detection error of the master control module 30; when the earphone is inserted for charging, the voltage across the resistor R7 will decrease with the decrease of the charging, so as to detect the charging current, when no current is detected or the current does not change for a long time, the earphone battery is fully charged.

[0044] 4) with reference to Figure 1 and Figure 5 In some embodiments, the multifunctional earphone charging bin further comprises a Hall induction module 70 connected with the master control module 30 for detecting whether the earphone is located in the charging bin; further, the multifunctional earphone charging bin further comprises a display module 80 connected with the master control module 30.

[0045] Specifically, when the earphone is put into the charging bin, the Hall induction module 70 detects that the earphone is inserted and transmits detection data to the master control module 10, the master control module 10 judges whether the earphone is correctly put into the charging bin according to the detection data, and controls the management module 60 to send a charging signal to the earphone; the control chip U4 is an electric 3-axis gyroscope, the control chip U4 and the master control module 10 communicate through SCL, SDA and SDO, when the electric 3-axis gyroscope senses a change, it can inform the master control module 10 through I 2C, thereby controlling other functions, the MBT 1 is an MCU+Bluetooth chip, the MCU directly drives the display module 80; the multifunctional earphone charging bin further comprises a switch SW1 connected with the master control module 30, which is used for function setting; the utility model also provides a Bluetooth earphone, which comprises the earphone charging bin.

[0046] 5) The utility model can realize the following functions: ① can set the timing countdown function, when the countdown is completed, pat the charging bin to stop; ② the warning function is sent when the charging bin falls, avoids that the charging bin is not found when falling in a corner, and the power is turned off to protect the battery when falling, and the earphone is prompted by sound; ③ the gyroscope can provide motion calculation function, can detect the state of human body, for example, when resting, the volume is moderate, if the human body is detected when moving, the volume will be automatically increased a little, the operation is convenient, and the interaction experience is obviously improved; ④ when the user carries out the voltage control operation to the charging bin, the Bluetooth module 40 of the charging bin transmits detection data to the MCU, the MCU collects and identifies the detection data, when the corresponding voltage control operation is identified, the signal is sent to the earphone to control the volume alarm sound of the earphone; ⑤ the gravity sensing module 50 of the charging bin is used alone, so that the user can set the alarm clock function when the mobile phone is not nearby; ⑥ the display module 80 of the charging bin is used to display the information such as music; ⑦ the gravity sensing module 50 provides more intuitive and convenient operation experience for the user, for example, holding the charging bin and swinging left and right can switch the upper and lower music, holding the charging bin and shaking up and down can simulate holding dumbbell and doing exercise, and the exercise amount can be recorded.

[0047] 6) The utility model has the advantages that: through the above-mentioned circuit, whether the charging bin falls and the user is reminded can be judged according to the detected charging bin motion state, loss is avoided, and very good practicability is obtained.

[0048] Of course, the utility model is not limited to the above-mentioned implementation, and those skilled in the art can make equivalent transformation or replacement without departing from the spirit of the utility model, and the equivalent transformation and replacement are all included in the range defined by the claims of the present application.

Claims

1. A multi-functional earphone charging pod, characterized in that: The application relates to a charging device for earphones, which comprises a charging module (10), a voltage boosting module (20), a main control module (30), a Bluetooth module (40) and a gravity sensing module (50). The input end of the charging module (10) is connected with an external power supply, and the output end is connected with the main control module (30), the voltage boosting module (20) and a battery respectively. The output end of the voltage boosting module (20) is connected with an earphone charging pile. The Bluetooth module (40) is connected with the main control module (30) and is used for pairing connection with earphones. The gravity sensing module (50) is connected with the main control module (30) and is used for detecting the motion change of a charging bin. The main control module (30) can send an alarm signal to earphones through the Bluetooth module (40) when the gravity sensing module (50) detects that the charging bin falls.

2. The multi-functional earphone charging pod of claim 1, wherein: The charging module (10) comprises a charging chip U1, an inductor L4, resistors R23, R29-R30, R34-R36, R40-R41 and R43, capacitors C22-C24 and the inductor L4. One end of the inductor L4 is connected with one end of the resistor R34 and an external power supply respectively, the other end of the inductor L4 is connected with one end of the capacitor C22, one end of the capacitor C23, one end of the resistor R23, the IN pin of the charging chip U1 and one end of the resistor R36 respectively, the other end of the resistor R34 is connected with a DC_DET end and connected with a GND end through the resistor R40, the other end of the resistor R36 is connected with the EN pin of the charging chip U1, one end of the resistor R41 and the main control module (30), the BAT pin of the charging chip U1 is connected with one end of the capacitor C24 and the third pin of a battery respectively, the TS pin of the charging chip U1 is connected with the other end of the resistor R23, one end of the resistor R29 and one end of the resistor R30 respectively, the I SET pin of the charging chip U1 is connected with one end of the resistor R29, one end of the resistor R30 and the GND end through the resistor R35 respectively, the second pin of the battery is connected with the main control module (30) through the resistor R43, the other end of the capacitor C22, the other end of the capacitor C23, the other end of the resistor R41, the other end of the capacitor C24 and the first pin of the battery are connected with the GND end.

3. The multi-functional earphone charging pod of claim 2, wherein: The charging module (10) further comprises an indicating lamp LED_G and a resistor R28, one end of the indicating lamp LED_G is connected with the other end of the inductor L4, and the other end of the indicating lamp LED_G is connected with the FULL pin of the charging chip U1 through the resistor R28.

4. The multi-functional earphone charging pod of claim 1, wherein: The boost module (20) includes a boost chip U2, capacitors C8-C9, a capacitor C16, a capacitor C20, a capacitor C25, inductors L2-L3, a resistor R16, a resistor R20, and a resistor R24. One end of the capacitor C16 is connected with a third pin of a battery, one end of the capacitor C20, and one end of the inductor L3, respectively. The other end of the inductor L3 is connected with one end of the capacitor C8, one end of the capacitor C9, one end of the inductor L2, and an IN pin of the boost chip U2, respectively. The other end of the inductor L2 is connected with a FULL pin of the boost chip U2. An EN pin of the boost chip U2 is connected with a BST_EN end through the resistor R16 and with a GND end through the resistor R20. An OUT pin of the boost chip U2 is connected with one end of the capacitor C25, one end of a resistor R19, and a charging pile of earphones, respectively. A FB pin of the boost chip U2 is connected with the other end of the capacitor C25, the other end of the resistor R19, and one end of the resistor R24, respectively. The other end of the capacitor C8, the other end of the capacitor C9, the other end of the capacitor C16, the other end of the capacitor C20, and the other end of the resistor R24 are connected with the GND end.

5. The multi-functional earphone charging pod of claim 4, wherein: A management module (60) connected with the master control module (30) and the boost module (20) is further included.

6. The multi-functional earphone charging pod of claim 5, wherein: The management module (60) includes MOS tubes Q1 and Q3, a transistor Q2, resistors R6-R7, a resistor R11, a resistor R13, a resistor R15, a capacitor C2, and static diodes D3-D4. The drain of the MOS tube Q3 is connected with an L_VDET end, one end of the static diode D3, and a positive pole of a charging pile TP1, respectively. The source of the MOS tube Q3 is connected with the source of the MOS tube Q1 and one end of the resistor R6, respectively. The gate of the MOS tube Q3 is connected with the gate of the MOS tube Q1, the collector of the transistor Q2, and the other end of the resistor R6, respectively. The drain of the MOS tube Q3 is connected with an R_VDET end, one end of the static diode D4, and a positive pole of a charging pile TP2, respectively. The base of the transistor Q2 is connected with one end of the resistor R11 and one end of the resistor R13, respectively. The other end of the resistor R11 is connected with the master control module (30). The negative pole of the charging pile TP1 is connected with one end of the resistor R7, one end of the resistor R15, and the negative pole of the charging pile TP2, respectively. The other end of the resistor R7 is connected with one end of the capacitor C2 and a GND end, respectively. The other end of the resistor R15 is connected with the master control module (30) and the other end of the capacitor C2, respectively. The other end of the static diode D3, the other end of the static diode D4, the other end of the resistor R13, and the emitter of the transistor Q2 are connected with the GND end.

7. The multi-functional earphone charging pod of claim 1, wherein: A Hall induction module (70) connected with the master control module (30) is further included for detecting whether the earphone is located in the charging compartment.

8. The multi-functional earphone charging pod of claim 1, wherein: A display module (80) connected with the master control module (30) is further included.

9. The multi-functional earphone charging pod of claim 1, wherein: A switch SW1 connected with the master control module (30) is further included.

10. A Bluetooth earpiece, characterized by: The earphone charging compartment of any one of claims 1-9 is included.

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