Earphone assembly and control method thereof

Abstract

The invention discloses an earphone assembly and a control method of the earphone assembly, and belongs to the technical field of wireless earphones. The earphone assembly comprises an earphone and a charging box, the charging box is internally provided with an accommodating cavity for placing the earphone, the earphone is provided with a first coil, and the charging box comprises a first processor, a battery assembly, a positive and negative charging module, a wireless charging module, a second coil and a falling detection module; the output end of the battery assembly is connected with the input end of the positive and negative charging module, the output end of the positive and negative charging module is connected with the first end of the wireless charging module, and the second end of the wireless charging module is connected with the plurality of coils; the first end of the first processor is connected with the control end of the battery assembly, the second end of the first processor is connected with the control end of the positive and negative charging module, the third end of the first processor is connected with the control end of the wireless charging module, and the fourth end of the first processor is connected with the falling detection module.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of wireless earphones, and particularly relates to an earphone assembly and a control method of the earphone assembly. BACKGROUND

[0002] The earphone assembly comprises a charging box and an earphone, the charging box comprises a charging box body and a cover body rotationally connected to the charging box body, and the charging box body and the cover body enclose a containing cavity, and the earphone is placed in the containing cavity to charge and store the earphone.

[0003] In the related art, a first magnet is arranged in the charging box body, a second magnet is arranged in the earphone, when the earphone is placed in the charging box, the first magnet and the second magnet attract each other to fix the earphone in the charging box. Moreover, a third magnet is arranged in the cover body, the cover body is covered on the charging box body, and the third magnet is magnetically connected to the first magnet to prevent the charging box from being opened.

[0004] However, when the earphone assembly falls, the earphone is still likely to fall out of the charging box, which affects the user experience. SUMMARY

[0005] The application discloses an earphone assembly and a control method of the earphone assembly to solve the problem that, in the related art, when the earphone assembly falls, the earphone is likely to fall out of the charging box, which affects the user experience.

[0006] To solve the above technical problem, the application is implemented as follows:

[0007] In a first aspect, the application discloses an earphone assembly, which comprises an earphone and a charging box, the charging box is provided with a containing cavity for placing the earphone, the earphone is provided with a first coil, and the charging box comprises a first processor, a battery assembly, a positive and negative charging module, a wireless charging module, a second coil and a falling detection module; an output end of the battery assembly is connected to an input end of the positive and negative charging module, an output end of the positive and negative charging module is connected to a first end of the wireless charging module, a second end of the wireless charging module is connected to a plurality of coils; a first end of the first processor is connected to a control end of the battery assembly, a second end of the first processor is connected to a control end of the positive and negative charging module, a third end of the first processor is connected to a control end of the wireless charging module, and a fourth end of the first processor is connected to the falling detection module; wherein the falling detection module is used to detect a magnetic induction change signal between the second coil and the first coil; and the first processor controls the wireless charging module to control the current size and current direction of the second coil according to the magnetic induction change signal in the case that the earphone assembly is in a falling state, so as to increase the attraction of the second coil to the first coil.

[0008] In a second aspect, the application discloses a control method of an earphone assembly, the earphone assembly comprising an earphone and the charging box as described in the first aspect, and the method comprises: acquiring, by the drop detection module, a magnetic induction change signal between the second coil and the first coil; and in the case that it is determined, according to the magnetic induction change signal, that the earphone assembly is in a falling state, controlling the wireless charging module to control the current size and the current direction of the second coil, so as to increase the attraction of the second coil to the first coil.

[0009] The application discloses an earphone assembly and a control method of the earphone assembly. The earphone assembly comprises an earphone and a charging box, the charging box is internally provided with a containing cavity for placing the earphone, the earphone is provided with a first coil, and the charging box comprises a first processor, a battery assembly, a positive and negative charging module, a wireless charging module, a second coil and a drop detection module. An output end of the battery assembly is connected with an input end of the positive and negative charging module, an output end of the positive and negative charging module is connected with a first end of the wireless charging module, a second end of the wireless charging module is connected with a plurality of coils, a first end of the first processor is connected with a control end of the battery assembly, a second end of the first processor is connected with a control end of the positive and negative charging module, a third end of the first processor is connected with a control end of the wireless charging module, and a fourth end of the first processor is connected with the drop detection module. The drop detection module is used for detecting a magnetic induction change signal between the second coil and the first coil. In the case that it is determined, according to the magnetic induction change signal, that the earphone assembly is in a falling state, the first processor controls the wireless charging module to control the current size and the current direction of the second coil, so as to increase the attraction of the second coil to the first coil.

[0010] The earphone assembly disclosed by the application can detect the magnetic induction change signal between the second coil and the first coil through the drop detection module. In the case that it is determined, according to the magnetic induction change signal, that the earphone assembly is in a falling state, the first processor can control the wireless charging module to control the current size and the current direction of the second coil, so as to increase the attraction of the second coil to the first coil. The attraction can adsorb the earphone in the charging box, and the earphone can be prevented from bouncing out of the charging box. That is to say, when the earphone assembly is in a falling state, the earphone will not fall out of the charging box, and therefore the use experience of a user can be improved.

[0011] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following and / or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0012] The above and / or additional aspects and advantages of the application will become apparent and be readily understood by considering the following detailed description, from which the above-mentioned aspects and advantages will become apparent and be readily understood, in which:

[0013] Figure 1 Fig. 3 shows a structural schematic diagram of the earphone assembly in the embodiment of the present application;

[0014] Figure 2 Fig. 4 shows a structural schematic diagram of the earphone assembly in the embodiment of the present application in a taking-out state;

[0015] Figure 3 Fig. 5 shows a structural schematic diagram of the earphone assembly in the embodiment of the present application in a falling state;

[0016] Figure 4 Fig. 6 shows a structural schematic diagram of the earphone assembly in the embodiment of the present application in a charging state;

[0017] Figure 5 Fig. 7 shows a circuit diagram of the earphone assembly in the embodiment of the present application;

[0018] Figure 6 Fig. 8 shows a control method flow of the earphone assembly in the embodiment of the present application; Figure 1

[0019] Figure 7 Fig. 9 shows a control method flow of the earphone assembly in the embodiment of the present application; Figure 2

[0020] Reference signs:

[0021] 10: earphone; 11: first coil;

[0022] 20: charging box; 21: first processor; 22: battery assembly; 23: positive and negative charging module; 231: fifth switch tube; 232: sixth switch tube; 24: wireless charging module; 241: switch assembly; 242: rectifier assembly; 2421: first switch tube; 2422: second switch tube; 2423: third switch tube; 2424: fourth switch tube; 25: second coil; 26: falling detection module;

[0023] 30: resonance circuit; 31: first capacitor; 32: second capacitor;

[0024] 40: switch module

[0025] 50: second processor. DETAILED DESCRIPTION

[0026] ​​Embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, for the purpose of explanation, and are not to be understood as limiting the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of the present application.

[0027] The terms "first", "second" in the specification and claims of the present application can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally means that the front and rear associated objects are in an "or" relationship.

[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0029] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] The earphone assembly disclosed by the embodiment of the present application comprises an earphone 10 and a charging box 20, the charging box 20 is internally provided with a containing cavity for placing the earphone 10, the earphone 10 is provided with a first coil 11, the charging box 20 comprises a first processor 21, a battery assembly 22, a positive and negative charging module 23, a wireless charging module 24, a second coil 25 and a drop detection module 26; the output end of the battery assembly 22 is connected with the input end of the positive and negative charging module 23, the output end of the positive and negative charging module 23 is connected with the first end of the wireless charging module 24, the second end of the wireless charging module 24 is connected with a plurality of coils; the first end of the first processor 21 is connected with the control end of the battery assembly 22, the second end of the first processor 21 is connected with the control end of the positive and negative charging module 23, the third end of the first processor 21 is connected with the control end of the wireless charging module 24, and the fourth end of the first processor 21 is connected with the drop detection module 26; wherein the drop detection module 26 is used for detecting the magnetic induction change signal between the second coil 25 and the first coil 11; the first processor 21 controls the current size and current direction of the second coil 25 according to the magnetic induction change signal to increase the attraction of the second coil 25 to the first coil 11 in the case that the earphone assembly is in a drop state.

[0031] As shown in Figures 1 to 4 The earphone assembly disclosed by the embodiment of the present application comprises a charging box 20 and an earphone 10. The charging box 20 comprises a charging box body and a cover body rotatably connected to the charging box body, and the charging box body and the cover body enclose a containing cavity for placing the earphone 10. The earphone 10 is placed in the containing cavity and can be charged and stored by the charging box 20.

[0032] As shown in Figure 5 The earphone 10 is provided with a first coil 11, and the charging box 20 comprises a first processor 21, a battery assembly 22, a positive and negative charging module 23, a wireless charging module 24, a second coil 25 and a drop detection module 26. The output end of the battery assembly 22 is connected with the input end of the positive and negative charging module 23, the output end of the positive and negative charging module 23 is connected with the first end of the wireless charging module 24, and the second end of the wireless charging module 24 is connected with a plurality of coils. It can be understood that the electric energy stored in the battery assembly 22 can be connected with the coil through the positive and negative charging module 23 and the wireless charging module 24 to charge the coil. The coil can also be connected with the battery assembly 22 through the wireless charging module 24 and the positive and negative charging module 23 to charge the battery assembly 22.

[0033] As shown in Figure 5As shown, in the embodiment of the present application, the first end of the first processor 21 is connected with the control end of the battery assembly 22, the second end of the first processor 21 is connected with the control end of the positive and negative charging module 23, the third end of the first processor 21 is connected with the control end of the wireless charging module 24, and the fourth end of the first processor 21 is connected with the drop detection module 26. The drop detection module 26 can detect the magnetic induction change signal between the second coil 25 and the first coil 11. The first processor 21 can obtain the magnetic induction change signal between the second coil 25 and the first coil 11, and the first processor 21 can determine whether the earphone assembly is in a drop state according to the magnetic induction change signal between the second coil 25 and the first coil 11. In the case that the earphone assembly is in a drop state, the first processor 21 controls the wireless charging module 24 to control the current size and current direction of the second coil 25, so as to increase the attraction of the second coil 25 to the first coil 11. The attraction can attract the earphone 10 to the charging box 20, so as to avoid the earphone 10 from being ejected from the charging box 20. That is, when the earphone assembly is in a drop state, the earphone 10 will not fall out of the charging box 20, thereby helping to improve the user's experience.

[0034] It should be noted that the first processor 21 in the embodiment of the present application can be a microcontroller unit (MCU), a first chip, etc. In the embodiment of the present application, the specific type of the first processor 21 is not limited too much. In actual application, the skilled in the art can select as needed. The input end of the positive and negative charging module 23 is connected with the output end of the battery assembly 22, the output end of the positive and negative charging module 23 is connected with the first end of the wireless charging module 24, and the second end of the wireless charging module 24 is connected with the plurality of coils. The reverse charging unit of the positive and negative charging module 23 can be controlled to be opened by the first processor 21, so as to realize charging of the coil by the battery assembly 22. Alternatively, the positive charging unit of the positive and negative charging module 23 can be controlled to be opened by the first processor 21, so as to realize charging of the battery assembly 22 by the coil.

[0035] As shown, Figures 1 to 4 The first coil 11 is arranged in the earphone 10, and the second coil 25 is arranged in the charging box 20. Exemplarily, the first coil 11 and the second coil 25 are coaxially arranged, and the axial directions of the first coil 11 and the second coil 25 are the same as the height direction of the earphone assembly. Alternatively, the first coil 11 and the second coil 25 are non-coaxially arranged, and the axial directions of the first coil 11 and the second coil 25 are the same as the height direction of the earphone assembly. Of course, the above is only an individual example of the specific arrangement of the first coil 11 and the second coil 25, and is not a limitation of the present application.

[0036] The following will take the example of the first coil 11 and the second coil 25 being coaxially arranged, and the axial direction of the first coil 11 and the second coil 25 being the same as the height direction of the earphone assembly, to make related description of the earphone assembly disclosed in the embodiments of the present application.

[0037] When the drop detection module 26 detects the magnetic induction change signal, the first processor 21 can determine the state of the earphone assembly according to the magnetic induction change signal. Illustratively, the drop detection module 26 can detect the magnetic induction change signal between the second coil 25 and the first coil 11 at different times, and the first processor 21 can obtain the magnetic induction change signal between the second coil 25 and the first coil 11 at multiple times, and determine the state of the earphone assembly according to the magnetic induction change signal at multiple times. For example, when the magnetic induction change signal at different times is constantly small, it can be considered that the earphone assembly is in a drop state. The drop state means that the earphone assembly falls from a high place, and the earphone 10 moves out of the earphone box 20.

[0038] In the case that the earphone assembly is in a drop state, the first processor 21 can control the wireless charging module 24 to increase the current of the second coil 25, and make the current direction of the second coil 25 the same as the current direction of the first coil 11. Thus, the attraction of the second coil 25 to the first coil 11 is increased, the first coil 11 is attracted by the second coil 25, and the earphone 10 is prevented from falling out of the earphone box 20, thereby improving the user's experience.

[0039] In the embodiments of the present application, the first coil 11 is arranged in the earphone 10, and the second coil 25 is arranged in the charging box 20. The first coil 11 and the second coil 25 respectively replace the magnet in the earphone 10 and the magnet in the charging box 20. The volume occupied by the first coil 11 and the second coil 25 is smaller, which is more conducive to improving the space utilization rate of the earphone assembly and facilitating the flexible layout of the components in the earphone assembly.

[0040] In some embodiments, as Figure 5As shown, the wireless charging module 24 includes a switching component 241 and a rectification component 242. The first end of the switching component 241 is connected to the positive and negative charging module 23, the second end of the switching component 241 is connected to the rectification component 242, the rectification component 242 is connected to the first output end and the second output end of the wireless charging module 24 respectively, and the first output end and the second output end are connected to the second coil 25 respectively. The rectification component 242 includes a first switch tube 2421, a second switch tube 2422, a third switch tube 2423, and a fourth switch tube 2424. The source of the first switch tube 2421 is connected to the drain of the second switch tube 2422, the source of the third switch tube 2423 is connected to the drain of the fourth switch tube 2424, the drain of the first switch tube 2421 and the drain of the third switch tube 2423 are connected to the switching component 241 respectively, the source of the second switch tube 2422 and the source of the fourth switch tube 2424 are grounded respectively, the source of the first switch tube 2421 is connected to the first output end, and the source of the third switch tube 2423 is connected to the second output end.

[0041] As shown, Figure 5 The wireless charging module 24 in the embodiment of the present application includes a switching component 241 and a rectification component 242. The wireless charging module 24 works cooperatively through the switching component 241 and the rectification component 242 to achieve efficient and safe current transmission. The first end of the switching component 241 is connected to the positive and negative charging module 23, and the second end of the switching component 241 is connected to the rectification component 242. The rectification component 242 is connected to the first output end and the second output end of the wireless charging module 24 respectively, and the first output end and the second output end are connected to the second coil 25 respectively.

[0042] The switching component 241 can be a MOSFET switch, which is an electronic switching device based on a metal oxide semiconductor field effect transistor. Its core function is to control the on-off of the current between the drain and the source through the gate voltage. The MOSFET switch can realize high-frequency on-off and dynamically adjust the magnetic field strength of the second coil 25, thereby adapting to different charging power requirements. In addition, the MOSFET switch can also integrate temperature and overcurrent detection circuits, which can immediately cut off the power supply when an abnormality is detected to prevent risks such as overheating or short circuit. The rectification component 242 can receive high-frequency alternating current induced by the second coil 25 and convert it into direct current to be transmitted to the battery component 22. In addition, the rectification component 242 can also eliminate ripple and stabilize the output voltage to ensure charging safety.

[0043] Exemplarily, as shown, Figure 5As shown, the rectifier assembly 242 includes a first switch tube 2421, a second switch tube 2422, a third switch tube 2423, and a fourth switch tube 2424. The source of the first switch tube 2421 is connected to the drain of the second switch tube 2422, and the source of the third switch tube 2423 is connected to the drain of the fourth switch tube 2424. The drain of the first switch tube 2421 and the drain of the third switch tube 2423 are respectively connected to the switch assembly 241. The source of the second switch tube 2422 and the source of the fourth switch tube 2424 are respectively grounded. The source of the first switch tube 2421 is connected to the first output end, and the source of the third switch tube 2423 is connected to the second output end. Through the above connection, the rectifier assembly 242 can receive the high-frequency alternating current induced by the second coil 25, convert the high-frequency alternating current into direct current, and transmit the direct current to the battery assembly 22. In addition, the rectifier assembly 242 can also eliminate ripple and stabilize the output voltage to ensure charging safety.

[0044] It should be noted that the first switch tube 2421, the second switch tube 2422, the third switch tube 2423, and the fourth switch tube 2424 in the embodiments of the present application can be MOSFET switches. MOSFET switch is a kind of electronic switch device based on metal oxide semiconductor field effect transistor. Its core function is to control the current between the drain and the source through the gate voltage, to realize efficient power conversion and protection. MOSFET switch is a three-terminal design, and the three terminals are gate, drain and source.

[0045] Of course, the above is only an individual example of the specific structure of the rectifier assembly 242, and is not a limitation of the present application. In actual application, the technical personnel can also set the specific structure of the rectifier assembly 242 according to the needs.

[0046] In some embodiments, as shown in Figure 5 The earphone assembly further includes a resonance circuit 30, and the resonance circuit 30 includes a first capacitor 31 and a second capacitor 32. The first capacitor 31 is arranged between the first output end and the second coil 25, and the second capacitor 32 is arranged between the first output end and the second output end.

[0047] The earphone assembly disclosed in the embodiments of the present application further includes a resonance circuit 30, which can optimize current transmission and improve current transmission efficiency.

[0048] As shown in Figure 5 The resonance circuit 30 in the embodiments of the present application includes two capacitors, namely a first capacitor 31 and a second capacitor 32. The first capacitor 31 is arranged between the first output end of the wireless charging module 24 and the second coil 25, so as to optimize the current transmission between the wireless charging module 24 and the second coil 25 and improve the current transmission efficiency between the wireless charging module 24 and the second coil 25.

[0049] The second capacitor 32 is connected between the first output of the wireless charging module 24 and the second output of the wireless charging module 24 to realize resonance detection at the wireless charging module 24.

[0050] In some embodiments, as shown in Figure 5 The positive and negative charging module 23 includes a fifth switch tube 231 and a sixth switch tube 232. The source of the fifth switch tube 231 is connected with the source of the sixth switch tube 232. The drain of the fifth switch tube 231 is connected with the wireless charging module 24. The drain of the sixth switch tube 232 is connected with the positive and negative charging module 23. The gate of the fifth switch tube 231 and the gate of the sixth switch tube 232 are respectively connected with the first processor 21. The fifth switch tube 231 and the sixth switch tube 232 are depletion mode N-channel mos tubes.

[0051] As shown in Figure 5 The positive and negative charging module 23 includes a fifth switch tube 231 and a sixth switch tube 232. The fifth switch tube 231 and the sixth switch tube 232 are depletion mode N-channel mos tubes (Normally-On NMOS). The depletion mode N-channel mos tube can control the channel conduction state through the gate voltage to realize bidirectional power conversion and circuit protection.

[0052] In the embodiment, the source of the fifth switch tube 231 is connected with the source of the sixth switch tube 232. The drain of the fifth switch tube 231 is connected with the wireless charging module 24. The drain of the sixth switch tube 232 is connected with the positive and negative charging module 23. The gate of the fifth switch tube 231 and the gate of the sixth switch tube 232 are respectively connected with the first processor 21. The fifth switch tube 231 is a positive charging unit, and the sixth switch tube 232 is a negative charging unit.

[0053] When forward charging is needed, that is, the battery assembly 22 is charged through the second coil 25, the first processor 21 can control the fifth switch tube 231 to be opened, so that the current generated by the second coil 25 can be transmitted to the battery assembly 22 through the wireless charging module 24 and the positive and negative charging module 23 to charge the battery assembly 22. When reverse charging is needed, that is, the second coil 25 is charged through the battery assembly 22, the first processor 21 can control the sixth switch tube 232 to be opened, so that the current in the battery assembly 22 can be transmitted to the second coil 25 through the positive and negative charging module 23 and the wireless charging module 24 to charge the second coil 25.

[0054] In the embodiment, the fifth switch tube 231 and the sixth switch tube 232 are arranged in the positive and negative charging module 23 to realize forward charging and reverse charging.

[0055] Further, the fifth switch tube 231 and the sixth switch tube 232 are two depletion mode N-channel MOS tubes connected in reverse series, and are turned on when the control end is high, and are completely turned off when the control end is low, and can block current in both directions. That is, in this way, the current in the battery assembly 22 can be prevented from flowing back to the second coil 25, and the current in the second coil 25 can be prevented from flowing back to the battery assembly 22, thereby achieving bidirectional backflow.

[0056] Further, in the embodiment of the present application, the fifth switch tube 231 and the sixth switch tube 232 are set as depletion mode N-channel MOS tubes. When the voltage of the battery assembly 22 is detected to be abnormal, the depletion mode N-channel MOS tube can also be quickly cut off to protect the safety of the battery assembly 22.

[0057] In some embodiments, as shown in Figure 5 The earphone assembly further includes a switch module 40, a first end of the switch module 40 is connected with the battery assembly 22, a second end of the switch module 40 is connected with the input end of the positive and negative charging module 23, and a third end of the switch module 40 is connected with the first processor 21. The switch module 40 is an enhancement mode N-channel MOS tube, the first end of the switch module 40 is a source, the second end of the switch module 40 is a drain, and the third end of the switch module 40 is a gate.

[0058] As shown in Figure 5 The earphone assembly disclosed in the embodiment of the present application further includes a switch module 40, and the switch module 40 is an enhancement mode N-channel MOS tube. The circuit between the battery assembly 22 and the positive and negative charging module 23 is realized by the gate control of the enhancement mode N-channel MOS tube.

[0059] The first end of the switch module 40 is connected with the battery assembly 22, the second end of the switch module 40 is connected with the input end of the positive and negative charging module 23, and the third end of the switch module 40 is connected with the first processor 21. The switch module 40 is an enhancement mode N-channel MOS tube, the first end of the switch module 40 is a source, the second end of the switch module 40 is a drain, the third end of the switch module 40 is a gate, and the third end of the switch module 40 is a control end.

[0060] When the first processor 21 outputs a high-level signal to the control end of the switch module 40, that is, the gate of the switch module 40, the enhanced N-channel mos tube is turned on, allowing the battery assembly 22 to supply power to the positive and negative charging module 23. When the first processor 21 outputs a low-level signal to the control end of the switch module 40, that is, the gate of the switch module 40, the enhanced N-channel mos tube is turned off, cutting off the connection between the battery assembly 22 and the positive and negative charging module 23. Further, in the embodiment of the application, the switch module 40 is set as an enhanced N-channel MOS tube. In the off state, the enhanced N-channel MOS tube has high impedance, which can effectively block the reverse current that may be generated by the positive and negative charging module 23, ensuring the safety and reliability of the battery assembly.

[0061] In some embodiments, as shown in Figure 5 The earphone assembly further includes a second processor 50 connected to the input end of the positive and negative charging module 23.

[0062] The earphone assembly disclosed in the embodiment of the application further includes a second processor 50 connected to the input end of the positive and negative charging module 23. The second processor 50 serves as a low-power coprocessor, responsible for real-time monitoring of the state of the battery assembly 22 (for example, monitoring the voltage and temperature of the battery assembly 22), and adjusting the working parameters of the positive and negative charging module 23 (for example, adjusting the charging current and charging voltage of the positive and negative charging module 23). The second processor 50 can form a master-slave cooperation architecture with the first processor 21.

[0063] In some embodiments, the earphone assembly further includes a pressure sensor connected to the first processor 21, the pressure sensor being configured to send a pressure change signal to the first processor 21; and the first processor 21 is further configured to, according to the magnetic induction change signal and the pressure change signal, control the wireless charging module 24 to control the current size and current direction of the second coil 25 when the earphone 10 is in the state of being taken out, and increase the repulsive force of the second coil 25 on the first coil 11.

[0064] The earphone assembly disclosed in the embodiment of the application further includes a pressure sensor, which is arranged on the earphone assembly and connected to the first processor 21. The pressure sensor can detect the pressure change signal of the earphone assembly, and the drop detection module 26 can detect the magnetic induction change signal between the second coil 25 and the first coil 11. The first processor 21 can obtain the pressure change signal of the earphone assembly and the magnetic induction change signal.

[0065] The first processor 21 determines whether the earphone assembly is in the taking-out state according to the obtained magnetic induction change signal and the pressure change signal. In the case where the earphone assembly is in the taking-out state, the first processor 21 controls the wireless charging module 24 to control the current size and the current direction of the second coil 25, so as to increase the repulsive force of the second coil 25 to the first coil 11. The repulsive force can pop the earphone 10 out of the earphone box 20, so as to facilitate the user to take out the earphone 10, and improve the user's experience. That is, when the earphone assembly is in the taking-out state, the earphone 10 is more easily popped out of the earphone box 20, so as to facilitate the user to take out the earphone 10 from the earphone box 20, and improve the user's experience.

[0066] It should be noted that the taking-out state refers to that the user takes out the earphone 10 from the earphone box 20. When the earphone 10 is taken out of the earphone box 20 by the user, the first coil 11 gradually moves away from the second coil 25, the magnetic induction signal of the second coil 25 relative to the first coil 11 changes, and the drop detection module 26 can detect the magnetic induction change signal. Moreover, when the user takes out the earphone 10, the user holds the earphone box 20 and / or the earphone 10, and the pressure sensor can detect the pressure change signal of the earphone assembly.

[0067] Exemplarily, the drop detection module 26 can detect the magnetic induction change signal between the second coil 25 and the first coil 11 at different times, and the pressure sensor can detect the pressure change signal of the earphone assembly at different times. The first processor 21 can obtain the magnetic induction change signal between the second coil 25 and the first coil 11 at multiple times and the pressure change signal of the earphone assembly at multiple times, and determine the state of the earphone assembly according to the magnetic induction change signal at multiple times and the pressure change signal of the earphone assembly at multiple times. For example, when the magnetic induction change signal at different times continuously decreases and the pressure change signal of the earphone assembly continuously decreases, it can be considered that the earphone assembly is in the taking-out state.

[0068] Referring to Figure 6 , a control method of the earphone assembly in the embodiment of the application is shown Figure 1 ;

[0069] The embodiment of the application discloses a control method of an earphone assembly, wherein the earphone assembly comprises an earphone 10 and the charging box 20 described in the above embodiment, and the method comprises:

[0070] 101. The drop detection module 26 obtains the magnetic induction change signal between the second coil 25 and the first coil 11.

[0071] When the earphone assembly is in the falling state, that is, the earphone assembly falls from a height, and the first coil 11 is far away from the second coil 25, the magnetic induction change signal between the second coil 25 and the first coil 11 can be obtained by the falling detection module 26.

[0072] Exemplarily, the magnetic induction signals between the second coil 25 and the first coil 11 at different times can be detected by the falling detection module 26 to determine the magnetic induction change signal between the second coil 25 and the first coil 11.

[0073] For example, the magnetic induction signal between the second coil 25 and the first coil 11 at the first time can be detected by the falling detection module 26. Then the magnetic induction signal between the second coil 25 and the first coil 11 at the second time can be detected by the falling detection module 26. Finally, the magnetic induction signal between the second coil 25 and the first coil 11 at the third time can be detected by the falling detection module 26. Then the magnetic induction change signal between the second coil 25 and the first coil 11 between the second time and the first time is determined, and the magnetic induction change signal between the third time and the second time is determined, and it is determined whether the magnetic induction change signal is continuously increasing or continuously decreasing.

[0074] 102, in the case of judging that the earphone assembly is in the falling state according to the magnetic induction change signal, the wireless charging module 24 is controlled to control the current size and current direction of the second coil 25, so as to increase the attraction of the second coil 25 to the first coil 11.

[0075] The first processor 21 can obtain the magnetic induction change signal between the second coil 25 and the first coil 11, and determine whether the earphone assembly is in the falling state according to the magnetic induction change signal between the second coil 25 and the first coil 11. Exemplarily, the first processor 21 can obtain the magnetic induction change signal between the second coil 25 and the first coil 11 at different times, and when the magnetic induction change signal between the second coil 25 and the first coil 11 at different times is continuously decreasing, it is determined that the earphone assembly is in the falling state.

[0076] When the earphone assembly is in the falling state, the first processor 21 can control the wireless charging module 24 to control the current size and current direction of the second coil 25, so as to increase the attraction of the second coil 25 to the first coil 11. The attraction can attract the earphone 10 into the charging box 20, so as to avoid the earphone 10 from being bounced out of the charging box 20. That is, when the earphone assembly is in the falling state, the earphone 10 will not fall out of the charging box 20, so as to help improve the user's use experience.

[0077] Exemplarily, in the case that the earphone assembly is in the falling state, the first processor 21 can control the wireless charging module 24 to increase the current of the second coil 25 and make the current direction of the second coil 25 same as the current direction of the first coil 11. Thus, the attraction of the second coil 25 to the first coil 11 is increased, the second coil 25 holds the first coil 11, the earphone 10 is prevented from falling out of the earphone box 20, and the user's use experience is improved.

[0078] It should be noted that when the earphone assembly is in the falling state, the fifth switch tube 231 and the sixth switch tube 232 in the positive and negative charging module 23 are both closed to prevent current backflow between the battery assembly 22 and the fifth coil 25, thereby improving the safety and reliability of the earphone assembly.

[0079] The charging box disclosed in the embodiments of the present application further comprises a pressure sensor, which is arranged on the charging box 20. In the case that the charging box 20 comprises the pressure sensor, the method further comprises:

[0080] obtaining a pressure change signal through the pressure sensor;

[0081] In the case that it is judged according to the magnetic induction change signal and the pressure change signal that the earphone 10 is in the taken-out state, the wireless charging module 24 is controlled to control the current size and current direction of the second coil 25, and the repulsion of the second coil 25 to the first coil 11 is increased.

[0082] When the earphone assembly is in the taken-out state, that is, the user holds the earphone assembly and takes out the earphone 10 from the charging box 20, the magnetic induction change signal between the second coil 25 and the first coil 11 can be obtained through the falling detection module 26, and the pressure change signal of the earphone assembly can be obtained through the pressure sensor.

[0083] Exemplarily, the magnetic induction signals between the second coil 25 and the first coil 11 at different times can be detected through the falling detection module 26 to ensure the magnetic induction change signal between the second coil 25 and the first coil 11. The pressure signals of the earphone assembly at different times can be obtained through the pressure sensor to determine the pressure change signal of the earphone assembly.

[0084] For example, the magnetic induction signal between the second coil 25 and the first coil 11 at the first time can be detected by the drop detection module 26. The magnetic induction signal between the second coil 25 and the first coil 11 at the second time can be detected by the drop detection module 26. The magnetic induction signal between the second coil 25 and the first coil 11 at the third time can be detected by the drop detection module 26. Then the magnetic induction change signal between the second coil 25 and the first coil 11 between the second time and the first time is determined, and the magnetic induction change signal between the second coil 25 and the first coil 11 between the third time and the second time is determined. It is determined whether the magnetic induction change signal is continuously increasing or continuously decreasing.

[0085] Also, the pressure signal of the earphone assembly at the first time can be detected by the pressure sensor, the pressure signal of the earphone assembly at the second time can be detected by the pressure sensor, and the pressure signal of the earphone assembly at the third time can be detected by the pressure sensor. Then the pressure change signal of the earphone assembly between the second time and the first time is determined, and the pressure change signal of the earphone assembly between the third time and the second time is determined. It is determined whether the pressure change signal is continuously increasing or continuously decreasing.

[0086] For example, when the magnetic induction change signal at different times is continuously decreasing, and the pressure change signal of the earphone assembly is continuously decreasing, it can be considered that the earphone assembly is in the taking-out state.

[0087] The first processor 21 can obtain the magnetic induction change signal between the second coil 25 and the first coil 11, and the pressure change signal of the earphone assembly, and determine whether the earphone 10 is in the taking-out state according to the magnetic induction change signal and the pressure change signal. That is, the user holds the earphone assembly and takes out the earphone 10 from the earphone box 20.

[0088] In the case that the earphone assembly is in the taking-out state, the first processor 21 controls the wireless charging module 24 to control the current size and current direction of the second coil 25, so as to increase the repulsive force of the second coil 25 to the first coil 11. The repulsive force can pop the earphone 10 out of the earphone box 20, so as to facilitate the user to take out the earphone 10, and improve the user's use experience. That is, when the earphone assembly is in the taking-out state, the earphone 10 is more easily popped out of the earphone box 20, so as to facilitate the user to take out the earphone 10 from the earphone box 20, and improve the user's use experience.

[0089] For example, in the case that the earphone assembly is in the taking-out state, the first processor 21 can control the wireless charging module 24 to increase the current of the second coil 25, and make the current direction of the second coil 25 opposite to the current direction of the first coil 11. Thus, the repulsive force of the second coil 25 to the first coil 11 is increased, so as to pop the earphone 10 out of the earphone box 20, and improve the user's use experience.

[0090] It should be noted that when the earphone 10 is in the taking-out state, the fifth switch tube 231 and the sixth switch tube 232 in the forward and reverse charging module 23 are both closed to prevent current backflow between the battery assembly 22 and the fifth coil 25, thereby improving the safety and reliability of the earphone assembly.

[0091] The control method of the earphone assembly disclosed in the embodiments of the present application further comprises:

[0092] In the case where it is judged according to the magnetic induction change signal that the earphone assembly is in the earphone insertion state, the fifth switch tube 231 of the forward and reverse charging module 23 is opened, and the wireless charging module 24 is opened to charge the earphone 10.

[0093] When the earphone 10 is inserted into the earphone box 20, the first coil 11 moves towards the direction close to the second coil 25, and the magnetic induction change signal between the second coil 25 and the first coil 11 gradually increases. That is, when the magnetic induction change signal between the second coil 25 and the first coil 11 gradually increases, the first processor 21 can judge that the earphone 10 is inserted into the earphone box 20, and the first processor 21 controls the fifth switch tube 231 of the forward and reverse charging module 23 to be opened and the wireless charging module 24 to be opened, so as to charge the earphone 10 by the battery assembly 22.

[0094] It should be noted that the earphone assembly disclosed in the embodiments of the present application does not need to set a pogo pin between the charging box 20 and the earphone 10, and can charge the earphone 10 by the charging box 20, thereby avoiding the problems of liquid corrosion and poor contact of the pogo pin, and helping to improve the reliability of the earphone assembly.

[0095] The charging box disclosed in the embodiments of the present application further comprises a pressure sensor, and the pressure sensor is arranged on the charging box 20. In the case where the charging box 20 comprises the pressure sensor, the method further comprises:

[0096] In the case where it is judged according to the magnetic induction change signal and the pressure change signal that the earphone 10 is in the external charging state, the fifth switch tube 231 and the sixth switch tube 232 of the forward and reverse charging module 23 are opened, and the wireless charging module 24 is opened to charge the charging box 20 and the earphone 10.

[0097] When the earphone 10 is placed in the earphone box 20, there is no movement of the first coil 11 compared with the second coil 25, there is no change in the magnetic induction change signal between the second coil 25 and the first coil 11, and the pressure sensor does not detect the pressure change signal of the earphone assembly, the first processor 21 can determine that the earphone assembly is in an external charging state. The first processor 21 can control the positive and negative charging module 23 to open the fifth switch tube 231 and the sixth switch tube 231, and the wireless charging module 24, so that the earphone 10 and the charging box 20 can be charged through the wireless charging base. Improve the convenience of charging the earphone assembly, improve the user's use experience.

[0098] Referring to Figure 7 , the control method flow of the earphone assembly in the embodiment of the application is shown Figure 2 ;

[0099] The embodiment of the application discloses a control method of an earphone assembly, wherein the earphone assembly comprises an earphone 10 and a charging box 20 as described in the above embodiment, and the method comprises:

[0100] 2011, acquiring the magnetic induction change signal between the second coil 25 and the first coil 11 at multiple time points through the drop detection module 26;

[0101] Exemplarily, the magnetic induction signal between the second coil 25 and the first coil 11 at the first time point can be detected through the drop detection module 26. Then the magnetic induction signal between the second coil 25 and the first coil 11 at the second time point is detected through the drop detection module 26. Finally, the magnetic induction signal between the second coil 25 and the first coil 11 at the third time point is detected through the drop detection module 26. Then the magnetic induction change signal between the second coil 25 and the first coil 11 between the second time point and the first time point is determined, and the magnetic induction change signal between the second coil 25 and the first coil 11 between the third time point and the second time point is determined, and then it is determined whether the magnetic induction change signal is continuously increasing or continuously decreasing.

[0102] 2012, determining the state of the earphone assembly according to the magnetic induction change signal at multiple time points;

[0103] Exemplarily, if the magnetic induction change signal between the third time point and the second time point is less than the magnetic induction change signal between the first time point and the second time point, it is determined that the earphone assembly is in a drop state.

[0104] 202, in the case where it is determined that the earphone assembly is in a drop state according to the magnetic induction change signal, the wireless charging module 24 is controlled to control the current size and current direction of the second coil 25, so as to increase the attraction of the second coil 25 to the first coil 11.

[0105] The first processor 21 can acquire the magnetic induction change signal between the second coil 25 and the first coil 11, and determine whether the earphone assembly is in the falling state according to the magnetic induction change signal between the second coil 25 and the first coil 11. Illustratively, the first processor 21 can acquire the magnetic induction change signal between the second coil 25 and the first coil 11 at different times, and when the magnetic induction change signal between the second coil 25 and the first coil 11 at different times is constantly decreasing, it is determined that the earphone assembly is in the falling state.

[0106] When the earphone assembly is in the falling state, the first processor 21 can control the wireless charging module 24 to control the current size and current direction of the second coil 25, thereby increasing the attraction of the second coil 25 to the first coil 11. The attraction can attract the earphone 10 into the charging box 20, avoiding the earphone 10 from bouncing out of the charging box 20. That is, when the earphone assembly is in the falling state, the earphone 10 will not fall out of the charging box 20, thereby helping to improve the user's use experience.

[0107] The electronic device disclosed in the embodiments of the present application includes a processor and a memory, the memory stores programs or instructions that can be run on the processor, and the programs or instructions are executed by the processor to implement the steps of the method described in the above embodiments.

[0108] The electronic device disclosed in the embodiments of the present application includes but is not limited to: a radio frequency unit, a network module, an audio output unit, an input unit, a sensor, a display unit, a user input unit, an interface unit, a memory, and a processor, etc.

[0109] Those skilled in the art can understand that the electronic device can also include a power supply (such as a battery) for powering each component, and the power supply can be logically connected to the processor through a power management system, so as to realize the functions of managing charging, discharging, and power consumption management through the power management system.

[0110] Of course, the structure does not constitute a limitation on the electronic device, and the electronic device can include more or fewer components, or combine certain components, or different component arrangements, which are not described here.

[0111] It should be understood that in the embodiments of the present application, the input unit can include a graphics processing unit (GPU) and a microphone, and the graphics processing unit processes image data of a still picture or a video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit can include a display panel, which can be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit includes at least one of a touch panel and other input devices. The touch panel is also called a touch screen. The touch panel can include two parts of a touch detection device and a touch controller. The other input devices can include, but are not limited to, a physical keyboard, function keys (such as volume control keys, on-off keys, etc.), a trackball, a mouse, a joystick, and the like, which will not be described here.

[0112] The memory can be used to store software programs and various data. The memory can mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area can store an operating system, application programs or instructions required by at least one function (such as a sound playing function, an image playing function, etc.), and the like. In addition, the memory can include a volatile memory or a non-volatile memory, or the memory can include both volatile and non-volatile memories. The non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDR SDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchl ink dynamic random access memory (SLDRAM), and a direct memory bus random access memory (DRRAM). The memory in the embodiments of the present application includes but is not limited to these and any other suitable types of memory.

[0113] The processor can include one or more processing units; optionally, the processor integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and an application program, and the modem processor mainly processes a wireless communication signal, such as a baseband processor. It can be understood that the above-mentioned modem processor can also not be integrated into the processor.

[0114] The embodiment of the present application further discloses a readable storage medium, which stores programs or instructions, and the programs or instructions are executed by a processor to realize the steps of the method described in the above embodiment and achieve the same technical effects. To avoid repetition, details are not described here.

[0115] The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer readable only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0116] It should be noted that the pressure sensor in the embodiment of the present application includes but is not limited to one or more of a piezoresistive sensor, a capacitive sensor, a piezoelectric sensor, and an optical sensor.

[0117] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0118] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An earphone assembly comprising an earphone and a charging box, the charging box being provided with a containing cavity for placing the earphone, the earphone being provided with a first coil, characterized in that, The charging box comprises a first processor, a battery assembly, a forward and reverse charging module, a wireless charging module, a second coil and a drop detection module; An output end of the battery assembly is connected with an input end of the forward and reverse charging module, an output end of the forward and reverse charging module is connected with a first end of the wireless charging module, and a second end of the wireless charging module is connected with a plurality of coils; A first end of the first processor is connected with a control end of the battery assembly, a second end of the first processor is connected with a control end of the forward and reverse charging module, a third end of the first processor is connected with a control end of the wireless charging module, and a fourth end of the first processor is connected with the drop detection module; The drop detection module is used for detecting a magnetic induction change signal between the second coil and the first coil; the first processor controls the wireless charging module to control a current size and a current direction of the second coil according to the magnetic induction change signal, and increases an attraction force of the second coil to the first coil in a case that the earphone assembly is in a drop state.

2. The earphone assembly of claim 1, wherein, The wireless charging module comprises a switch assembly and a rectifier assembly, a first end of the switch assembly is connected with the forward and reverse charging module, a second end of the switch assembly is connected with the rectifier assembly, the rectifier assembly is respectively connected with a first output end and a second output end of the wireless charging module, and the first output end and the second output end are respectively connected with the second coil; The rectifier assembly comprises a first switch tube, a second switch tube, a third switch tube and a fourth switch tube, a source electrode of the first switch tube is connected with a drain electrode of the second switch tube, a source electrode of the third switch tube is connected with a drain electrode of the fourth switch tube, a drain electrode of the first switch tube and a drain electrode of the third switch tube are respectively connected with the switch assembly, a source electrode of the second switch tube and a source electrode of the fourth switch tube are respectively grounded, a source electrode of the first switch tube is connected with the first output end, and a source electrode of the third switch tube is connected with the second output end.

3. The earphone assembly of claim 2, wherein, Further comprising: a resonance circuit, the resonance circuit comprises a first capacitor and a second capacitor, the first capacitor is arranged between the first output end and the second coil, and the second capacitor is arranged between the first output end and the second output end.

4. The earphone assembly of claim 1, wherein, The forward and reverse charging module comprises: a fifth switch tube and a sixth switch tube, a source electrode of the fifth switch tube is connected with a source electrode of the sixth switch tube, a drain electrode of the fifth switch tube is connected with the wireless charging module, a drain electrode of the sixth switch tube is connected with the forward and reverse charging module, and a gate electrode of the fifth switch tube and a gate electrode of the sixth switch tube are respectively connected with the first processor; The fifth switch tube and the sixth switch tube are depletion mode N-channel mos tubes.

5. The earphone assembly of claim 1, wherein, Further comprising: a switch module, a first end of the switch module is connected with the battery assembly, a second end of the switch module is connected with an input end of the forward and reverse charging module, and a third end of the switch module is connected with the first processor; The switch module is an enhanced N-channel mos tube, the first end of the switch module is a source, the second end of the switch module is a drain, and the third end of the switch module is a gate.

6. The earphone assembly of claim 1, wherein, Further comprising: A second processor connected with the input end of the positive and negative charging module.

7. The earphone assembly of claim 1, wherein, Further comprising: A pressure sensor connected with the first processor, the pressure sensor being configured to send a pressure change signal to the first processor; The first processor is further configured to, according to the magnetic induction change signal and the pressure change signal, control the wireless charging module to control the current size and current direction of the second coil, and increase the repulsive force of the second coil on the first coil when the earphone is in the state of being taken out. 8.A method for controlling an earphone assembly, the earphone assembly comprising an earphone and the charging case according to any one of claims 1-7, characterized in that, The method comprises: Obtaining a magnetic induction change signal between the second coil and the first coil through the drop detection module; According to the magnetic induction change signal, when the earphone assembly is in the state of falling, the wireless charging module is controlled to control the current size and current direction of the second coil, and the attractive force of the second coil on the first coil is increased.

9. The control method of the earphone assembly according to claim 8, wherein, The method of obtaining a magnetic induction change signal between the second coil and the first coil through the drop detection module comprises: Obtaining a plurality of time magnetic induction change signals between the second coil and the first coil through the drop detection module; According to a plurality of time magnetic induction change signals, the state of the earphone assembly is determined.

10. The control method of the earphone assembly according to claim 8, wherein, In the case that the charging box comprises a pressure sensor, the method further comprises: Obtaining a pressure change signal through the pressure sensor; According to the magnetic induction change signal and the pressure change signal, when the earphone is in the state of being taken out, the wireless charging module is controlled to control the current size and current direction of the second coil, and the repulsive force of the second coil on the first coil is increased.

11. The control method of the earphone assembly according to claim 8, wherein Further comprising: According to the magnetic induction change signal, when the earphone assembly is in the state of earphone insertion, the positive and negative charging module is controlled to open the fifth switch tube, and the wireless charging module is controlled to charge the earphone.

12. The control method of the earphone assembly according to claim 8, wherein, In the case that the charging box comprises a pressure sensor, the method further comprises: According to the magnetic induction change signal and the pressure change signal, when the earphone is in the state of external charging, the positive and negative charging module is controlled to open the fifth switch tube and the sixth switch tube, and the wireless charging module is controlled to charge the charging box and the earphone.

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