Wireless earphone charging box, charging box and wireless charging system

Abstract

The embodiment of the application provides a wireless earphone charging box, a charging box and a wireless charging system, which comprise a coil for establishing wireless communication between the wireless earphone charging box and a charging base and for receiving electric energy from the charging base through electromagnetic induction when wireless communication with the charging base is maintained; a metal part for absorbing electric energy from the charging base through electromagnetic induction and generating heat when the coil receives electric energy from the charging base through electromagnetic induction; and a control module for sending a control instruction to the charging base through the coil according to the temperature of the metal part, so that the charging base stops radiating electric energy or starts radiating electric energy according to the control instruction. When the temperature of the metal part is too high, the charging base can be caused to stop radiating electric energy, so that the metal part no longer continues to generate heat and gradually cools down, and therefore the temperature of the metal part can be kept within a controllable range, thereby improving the safety of the wireless earphone charging box during the wireless charging process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wireless charging, in particular to a wireless earphone charging box, a charging box and a wireless charging system. BACKGROUND

[0002] With the development of electronic technology, wireless charging technology is becoming more and more mature, so that the current devices supporting wireless charging are increasing.

[0003] When the electronic device is wirelessly charged, the electronic device will generate heat and cause the temperature to rise, thereby affecting the safety of the wireless charging of the electronic device. SUMMARY

[0004] The embodiments of the present application provide a wireless earphone charging box, a charging box and a wireless charging system, which can improve the safety of the charging box in the wireless charging process.

[0005] The embodiments of the present application provide a wireless earphone charging box, comprising:

[0006] a coil, for wirelessly communicating the wireless earphone charging box with a charging base, and for receiving electric energy from the charging base by electromagnetic induction when maintaining wireless communication with the charging base;

[0007] a metal part, disposed in a spaced manner with the coil, when the coil receives electric energy from the charging base by electromagnetic induction, the metal part absorbs electric energy from the charging base by electromagnetic induction and generates heat;

[0008] a control module, electrically connected with the coil, the control module is used for sending a control instruction to the charging base through the coil according to the temperature of the metal part, so that the charging base stops radiating electric energy or starts radiating electric energy according to the control instruction.

[0009] The embodiments of the present application also provide a charging box, comprising:

[0010] a coil, for wirelessly communicating the charging box with a charging base, and for receiving electric energy from the charging base by electromagnetic induction when maintaining wireless communication with the charging base;

[0011] a metal part, disposed in a spaced manner with the coil, when the coil receives electric energy from the charging base by electromagnetic induction, the metal part absorbs electric energy from the charging base by electromagnetic induction and generates heat;

[0012] a control module, electrically connected with the coil, the control module is used for sending a control instruction to the charging base through the coil according to the temperature of the metal part, so that the charging base stops radiating electric energy or starts radiating electric energy according to the control instruction.

[0013] The embodiment of the present application also provides a wireless charging system, comprising:

[0014] A charging base is configured to radiate electric energy in a wireless manner.

[0015] The wireless earphone charging box is the wireless earphone charging box described above.

[0016] In the wireless earphone charging box provided by the embodiment of the present application, the control module can send a control instruction to the charging base through the coil according to the temperature of the metal part, so that the charging base stops radiating electric energy or starts radiating electric energy according to the control instruction. When the temperature of the metal part is too high, the charging base can stop radiating electric energy, so that the metal part no longer continues to generate heat and gradually cools down. Therefore, through the control of the control module, the temperature of the metal part can be kept within a controllable range, so that the safety of the wireless earphone charging box in the wireless charging process can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0018] Figure 1 The structure diagram of the wireless charging system provided by the embodiment of the present application.

[0019] Figure 2 The front view of the wireless earphone charging box provided by the embodiment of the present application.

[0020] Figure 3 The first side view of the wireless earphone charging box provided by the embodiment of the present application.

[0021] Figure 4 The second side view of the wireless earphone charging box provided by the embodiment of the present application.

[0022] Figure 5 The first structure diagram of the wireless earphone charging box provided by the embodiment of the present application.

[0023] Figure 6 The second structure diagram of the wireless earphone charging box provided by the embodiment of the present application.

[0024] Figure 7 The third structure diagram of the wireless earphone charging box provided by the embodiment of the present application.

[0025] Figure 8A fourth structural schematic diagram of the wireless earphone charging box is provided in the embodiments of the present application.

[0026] Figure 9 A fifth structural schematic diagram of the wireless earphone charging box is provided in the embodiments of the present application. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] The embodiments of the present application provide a wireless charging system. The wireless charging system can be used to charge an electronic device by a wireless manner, for example, can be used to charge a charging box. The charging box can be used to charge other electronic devices. For example, the charging box can be a wireless earphone charging box, and the wireless earphone charging box can be used to charge a wireless earphone.

[0029] Reference Figure 1 , Figure 1 A structural schematic diagram of the wireless charging system 1000 is provided in the embodiments of the present application. The wireless charging system 1000 includes a charging box 100 and a charging base 200. The charging box 100 can be used to charge other electronic devices. The charging base 200 is connected to an external power supply, for example, can be connected to a power socket. Hereinafter, only the charging box 100 as a wireless earphone charging box is taken as an example for description.

[0030] The wireless earphone charging box 100 includes a coil 10, a metal part 20, a control module 30, a receiving circuit 40, and a battery 50.

[0031] The coil 10 can be a winding coil, for example, can be a coil formed by winding copper wire. The coil 10 can be used to transmit and receive wireless signals on one hand, so that the wireless earphone charging box 100 can communicate with the charging base 200 wirelessly; on the other hand, the coil 10 can realize electrical connection with the charging base 200 by electromagnetic coupling, so as to receive electrical energy from the charging base 200 by electromagnetic induction.

[0032] It can be understood that the charging base 200 can also include a coil. The coil in the charging base 200 can be used to radiate electrical energy, and to make the charging base 200 communicate with the wireless earphone charging box 100 wirelessly.

[0033] In the working process of the wireless charging system 1000, the charging base 200 can first send a handshake signal in a broadcast manner, for example, the handshake signal can be sent once every 1 second. The handshake signal can not have a specific receiving end, but is sent in a broadcast manner. The handshake signal is used to establish wireless communication with the electronic device to be charged. When the charging base 200 sends the handshake signal, the wireless earphone charging box 100 has not established wireless communication with the charging base 200. At this time, the charging base 200 does not radiate electric energy.

[0034] Subsequently, when the wireless earphone charging box 100 is located in the communication range of the charging base 200, for example, when the user places the wireless earphone charging box 100 on the charging base 200, the wireless earphone charging box 100 receives the handshake signal sent by the charging base 200 and returns a response signal to the charging base 200. Subsequently, the charging base 200 can establish wireless communication with the wireless earphone charging box 100 according to the response signal. It can be understood that after the charging base 200 establishes wireless communication with the wireless earphone charging box 100, the wireless communication can be maintained. For example, the wireless earphone charging box 100 can send an energy signal to the charging base 200 at a certain time through the coil 10, so that the charging base 200 can control the radiation of electric energy according to the energy signal when the energy signal is received. When the charging base 200 does not receive the energy signal or the received energy signal does not meet the preset condition, the radiation of electric energy is stopped or the radiation of electric energy is adjusted.

[0035] After the charging base 200 establishes wireless communication with the wireless earphone charging box 100, the charging base 200 can start to radiate electric energy. When the wireless earphone charging box 100 establishes and maintains wireless communication with the charging base 200, the wireless earphone charging box 100 can receive electric energy from the charging base 200 through electromagnetic induction. Thus, the charging base 200 charges the wireless earphone charging box 100.

[0036] It should be noted that only when the wireless earphone charging box 100 establishes and maintains wireless communication with the charging base 200, the charging base 200 defaults that the wireless earphone charging box 100 is in the range that can be wirelessly charged, and at this time the charging base 200 radiates electric energy. When the wireless earphone charging box 100 is disconnected from the wireless communication with the charging base 200, even if the wireless earphone charging box 100 is still placed on the charging base 200, at this time the charging base 200 defaults that the wireless earphone charging box 100 is outside the range that can be wirelessly charged, and at this time in order to ensure the safety of wireless charging, the charging base 200 does not radiate electric energy.

[0037] Therefore, once the wireless earphone charging box 100 is disconnected from the wireless communication with the charging base 200, the charging base 200 stops radiating electric energy, or when the wireless communication cannot be re-established with the wireless earphone charging box 100 within a period of time (for example, within 5 seconds) after the wireless communication is disconnected, the charging base 200 stops radiating electric energy.

[0038] The metal part 20 is a metal component in the wireless earphone charging box 100, for example, a copper component, an aluminum alloy component, etc. The metal part 20 is arranged in a spaced manner with the coil 10. It can be understood that when the charging base 200 radiates electric energy, the metal part 20 can also be electrically connected with the charging base 200 through electromagnetic coupling. Therefore, when the coil 10 receives electric energy from the charging base 200 through electromagnetic induction, the metal part 20 can also absorb electric energy from the charging base 200 through electromagnetic induction and generate heat, so as to cause the temperature of the metal part 20 to rise. It can be understood that when the temperature of the metal part 20 rises, the temperature of the wireless earphone charging box 100 rises, thereby affecting the safety of the wireless earphone charging box 100 during the charging process.

[0039] The control module 30 is the control center of the wireless earphone charging box 100. The control module 30 can be, for example, an MCU (Micro Control Unit). The control module 30 is electrically connected with the coil 10. The control module 30 can be used to control the charging process of the wireless earphone charging box 100. For example, the control module 30 can be used to send a control instruction to the charging base 200 through the coil 10 according to the temperature of the metal part 20, so that the charging base 200 stops radiating electric energy or starts radiating electric energy according to the control instruction.

[0040] For example, in some embodiments, during the charging process of the wireless earphone charging box 100, when the temperature of the metal part 20 is too high, the control module 30 can make the charging base 200 stop radiating electric energy through a control instruction, so that the metal part 20 no longer continues to generate heat and gradually cools down. When the temperature of the metal part 20 decreases to a lower range, the control module 30 makes the charging base 200 start radiating electric energy through a control instruction to continue charging the wireless earphone charging box 100. In this case, the charging base 200 can be controlled by the control module 30 to stop radiating electric energy through a control instruction, and the charging base 200 can also be controlled by the control module 30 to start radiating electric energy through a control instruction.

[0041] For another example, in some embodiments, during the charging process of the wireless earphone charging box 100, when the temperature of the metal part 20 is too high, the control module 30 can control the charging base 200 to stop radiating electric energy through a control instruction, so that the metal part 20 no longer continues to generate heat and gradually cools down. When the temperature of the metal part 20 decreases to a lower range, after the wireless earphone charging box 100 establishes wireless communication with the charging base 200, the charging base 200 can automatically start radiating electric energy to continue charging the wireless earphone charging box 100. In this case, the control module 30 can only control the charging base 200 to stop radiating electric energy through a control instruction, and does not need to control the charging base 200 to start radiating electric energy through a control instruction, but after the wireless communication is established, the charging base 200 automatically starts radiating electric energy.

[0042] For another example, in some embodiments, during the charging process of the wireless earphone charging box 100, when the temperature of the metal part 20 is too high, the control module 30 can control the wireless earphone charging box 100 to disconnect the wireless communication with the charging base 200, and at this time the charging base 200 automatically stops radiating electric energy. When the temperature of the metal part 20 decreases to a lower range, after the wireless earphone charging box 100 establishes wireless communication with the charging base 200, the control module 30 controls the charging base 200 to start radiating electric energy through a control instruction to continue charging the wireless earphone charging box 100. In this case, the control module 30 can only control the charging base 200 to start radiating electric energy through a control instruction, and does not need to control the charging base 200 to stop radiating electric energy through a control instruction, but after the wireless communication is disconnected, the charging base 200 automatically stops radiating electric energy.

[0043] Therefore, through the control of the control module 30, the temperature of the metal part 20 can be kept within a controllable range, that is, the temperature of the wireless earphone charging box 100 is kept within a controllable range, so that the safety of the wireless earphone charging box 100 during the wireless charging process can be improved. The receiving circuit 40 is electrically connected with the coil 10. The receiving circuit 40 is used to process the electric energy received by the coil 10, for example, to perform filtering, rectification and other processing, so as to form a charging current.

[0044] The battery 50 is electrically connected with the receiving circuit 40, and the electric current output by the receiving circuit 40 can be used to charge the battery 50. Therefore, the electric energy received by the coil 10 can be stored through the battery 50.

[0045] Meanwhile referring to Figure 2 Figure 3 and Figure 4 , Figure 2 a front view of the wireless earphone charging box 100 provided by the embodiments of the present application, Figure 3 a first side view of the wireless earphone charging box 100 provided by the embodiments of the present application, Figure 4A second side view of the wireless earphone charging box provided in the embodiments of the present application.

[0046] The wireless earphone charging box 100 comprises a charging box body 61, a charging box cover 62, and a metal rotating shaft 63. The charging box cover 62 is connected with the charging box body 61, for example, through the metal rotating shaft 63. The charging box body 61, the metal rotating shaft 63, and the charging box cover 62 can form a hinge structure, so that the charging box cover 62 can rotate relative to the charging box body 61 around the metal rotating shaft 63, so that the wireless earphone charging box 100 can be switched between an open state and a closed state. Wherein, the wireless earphone charging box 100 is in the open state as shown in FIG. 1A; when the wireless earphone charging box 100 is in the closed state, the charging box cover 62 and the charging box body 61 are in a mutually adhering state. Wherein, the material of the metal rotating shaft 63 can include materials such as aluminum alloy. Figure 2

[0047] Wherein, the coil 10 can be arranged in the charging box body 61. It can be understood that the coil 10 arranged in the charging box body 61 includes at least one of the following: the coil 10 can be arranged on the side close to the inner surface of the shell of the charging box body 61, the coil 10 can be arranged on the side close to the outer surface of the shell of the charging box body 61, the coil 10 can be arranged on the shell of the charging box body 61, for example, attached to the inner surface or the outer surface of the shell, or embedded in the shell. In the field of wireless charging, the distance between the two coils of the transmitting end and the receiving end is related to the efficiency of wireless charging, so the distance close to the shell in the coil arrangement can be set according to the actual product charging efficiency. Thus, when the wireless earphone charging box 100 is placed on the charging base 200, the coil 10 can receive electric energy from the charging base 200 through electromagnetic induction, thereby charging the wireless earphone charging box 100. The control module 30 can be arranged in the charging box body 61, so that the charging process of the wireless earphone charging box 100 can be controlled through the control module 30.

[0048] It can be understood that since the charging box cover 62 is connected with the charging box body 61 through the metal rotating shaft 63, when the coil 10 receives electric energy from the charging base 200, the metal rotating shaft 63 can also absorb electric energy from the charging base 200 through electromagnetic induction and generate heat. Therefore, in some embodiments, the metal part 20 can include the metal rotating shaft 63.

[0049] In some embodiments, the charging box body 61 is provided with a containing space 610. The containing space 610 can be a cavity provided in the charging box body 61. Wherein, the containing space 610 can be used to contain the wireless earphone. For example, the wireless earphone can be placed in the containing space 610, so that the wireless earphone charging box 100 charges the wireless earphone. In addition, it can be understood that the control module 30 can also be arranged in the containing space 610. ​

[0050] In some embodiments, the charging case body 61 includes side walls 611, 612, 613, 614, and a bottom wall 615. Side walls 612 and 611 are disposed opposite each other, and side walls 614 and 613 are disposed opposite each other. Side walls 611, 613, 612, and 614 are connected sequentially. The bottom wall 615 is connected to all side walls 611, 613, 612, and 614. Therefore, side walls 611, 613, 612, 614, and the bottom wall 615 can enclose and form an accommodating space 610. It is understood that the opposite direction of the bottom wall 615 can form an opening in the charging case body 61, that is, an opening in the accommodating space 610.

[0051] In some embodiments, the metal shaft 63 may be disposed on the same side wall as the coil 10 on the charging case body 61. For example, the metal shaft 63 may be connected to the first side wall of the charging case body 61, and the coil 10 may also be disposed on the first side wall of the charging case body 61. Figure 3 As shown. In this case, the metal hinge 63 gets quite hot during wireless charging because it is close to the coil 10. However, this design is more convenient for opening the case and taking out the earphones during wireless charging, and may be more in line with user habits, thus offering certain advantages in use.

[0052] In some embodiments, the metal shaft 63 and the coil 10 are disposed on different side walls of the charging case body 61. For example, the metal shaft 63 is connected to the first side wall of the charging case body 61, and the coil 10 is disposed on the second side wall of the charging case body 61. Figure 4 As shown. In this case, since the metal hinge 63 is relatively far from the coil 10, the temperature rise during wireless charging is small. However, this design makes it difficult to open the case and take out the earphones during wireless charging, and the placement of the earphone charging case 100 on the charging base 200 may differ from the user's usual placement method.

[0053] In some embodiments, the coil 10 may also be disposed on multiple side walls of the charging case body 61. For example, the metal shaft 63 is connected to the first side wall of the charging case body 61, and the coil 10 is disposed on both the first and second side walls of the charging case body 61. Thus, when either the first or second side wall is located on the charging base 200, the wireless earphone charging case 100 can be quickly charged, thereby meeting the user's need to place the wireless earphone charging case at multiple angles. Understandably, in this case, when the wireless earphone charging case 100 begins wireless charging, it can select which side wall or several side walls' coils to use to receive power based on the wireless charging efficiency of the coils on each side wall, thereby improving the wireless charging efficiency.

[0054] The first side wall can be any one of the side wall 611, the side wall 612, the side wall 613, or the side wall 614, and the second side wall is different from the first side wall. For example, the first side wall can be the side wall 611, and the second side wall can be the side wall 612 opposite to the side wall 611. The second side wall can also be the side wall 613 or the side wall 614 adjacent to the side wall 611.

[0055] The coil 10 can be arranged on the first side wall, or arranged on the second side wall, or arranged on both the first side wall and the second side wall. This can be achieved in various ways.

[0056] For example, in some embodiments, the coil 10 can be embedded in the first side wall or the second side wall. For example, a groove can be provided on the first side wall or the second side wall, and the coil 10 can be arranged in the groove, and then a non-metal material such as plastic can be covered on the surface of the coil 10. It can be understood that when the coil 10 is embedded in the first side wall or the second side wall, the coil 10 can be prevented from moving or falling off during use of the wireless earphone charging box 100, and the installation stability of the coil 10 can be improved.

[0057] For another example, in some embodiments, the coil 10 can also be attached to the surface of the first side wall or the second side wall, or arranged close to the surface of the first side wall or the second side wall. For example, the coil 10 can be attached to the inner surface of the first side wall or the second side wall by using glue. It can be understood that when the coil 10 is attached to the surface of the first side wall or the second side wall, the installation process of the coil 10 can be simplified.

[0058] It can be understood that during the charging process of the wireless earphone charging box 100, the coil 10 is close to the charging base 200. When the metal rotating shaft 63 and the coil 10 are arranged on the same side wall of the charging box body 61, the distance between the metal rotating shaft 63 and the coil 10 is small, that is, the distance between the metal rotating shaft 63 and the charging base 200 is also small. Therefore, when the coil 10 receives electric energy from the charging base 200, the metal rotating shaft 63 absorbs electric energy from the charging base 200 and generates heat, which can cause the temperature of the metal rotating shaft 63 to rise rapidly.

[0059] Therefore, in some embodiments, in order to reduce the heating of the metal rotating shaft 63 during the charging process, the metal rotating shaft 63 and the coil 10 can be arranged on different side walls of the charging box body 61, so as to increase the distance between the metal rotating shaft 63 and the coil 10, that is, to increase the distance between the metal rotating shaft 63 and the charging base 200, thereby reducing the heating of the metal rotating shaft 63.

[0060] In the description of this application, it should be understood that terms such as “first” and “second” are used only to distinguish similar objects and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0061] In some embodiments, reference Figure 5 , Figure 5 This is a schematic diagram of a first structure of the wireless earphone charging case 100 provided in an embodiment of this application.

[0062] The wireless earphone charging case 100 also includes a temperature detection module 70. The temperature detection module 70 is used to detect the temperature of the metal part 20. The temperature detection module 70 is electrically connected to the control module 30, so that the temperature detection module 70 can transmit the detected temperature data to the control module 30, and the control module 30 can then obtain the temperature of the metal part 20.

[0063] The temperature detection module 70 may include a temperature sensor, such as a thermistor. The temperature detection module 70 can be disposed on the metal part 20, for example, attached to the surface of the metal part 20. The temperature detection module 70 can also be disposed in other parts of the wireless earphone charging case 100, such as on the side wall of the charging case body 61. Understandably, when the temperature detection module 70 is disposed in other parts, it is only necessary to establish a correspondence between the temperature of the metal part 20 and the temperature of the location where the temperature detection module 70 is located, so that the temperature of the metal part 20 can be detected by the temperature detection module 70.

[0064] In some embodiments, when the temperature detected by the temperature detection module 70 is greater than or equal to a first preset temperature, the control module 30 sends a first control command to the charging base 200 via the coil 10, causing the charging base 200 to stop radiating electrical energy according to the first control command. The first preset temperature is a pre-set temperature value, which can be set empirically or measured experimentally. For example, the first preset temperature can be 40 degrees Celsius. The first control command can be a stop charging command.

[0065] For example, when the temperature detection module 70 detects a temperature greater than or equal to 40 degrees Celsius, the control module 30 sends a stop charging command to the charging base 200 via the coil 10. Upon receiving the stop charging command, the charging base 200 stops radiating electrical energy. Thus, through the control of the control module 30, the wireless charging process can be temporarily interrupted, preventing the temperature of the metal part 20 from continuing to rise and ensuring the safety of the wireless earphone charging case 100.

[0066] Subsequently, when the temperature detected by the temperature detection module 70 is less than the second preset temperature, the control module 30 sends a second control instruction to the charging base 200 through the coil 10, so that the charging base 200 starts to radiate electric energy according to the second control instruction. The second control instruction can be a resuming charging instruction. The second preset temperature is less than or equal to the first preset temperature. For example, when the first preset temperature is 40 degrees, the second preset temperature can be 40 degrees, or less than 40 degrees, such as 25 degrees, etc.

[0067] For example, when the temperature detected by the temperature detection module 70 is less than 25 degrees, the control module 30 sends a resuming charging instruction to the charging base 200 through the coil 10. When the charging base 200 receives the resuming charging instruction, it can start to radiate electric energy, thereby resuming the wireless charging process.

[0068] Therefore, in the charging process of the wireless earphone charging box 100, the temperature of the metal part 20 can be prevented from being too high, and the wireless earphone charging box 100 can be charged as quickly as possible. In the embodiment of the application, the wireless earphone charging box 100 can control the wireless charging process according to the temperature of the metal part 20, for example, according to the temperature of the metal rotating shaft 63, to avoid the safety risk caused by the high temperature of the metal rotating shaft 63, and to ensure that the user can place the wireless earphone charging box 100 at multiple angles, thereby facilitating the use of the user.

[0069] It can be understood that if the second preset temperature is equal to the first preset temperature, for example, both are 40 degrees, when the temperature of the metal part 20 is greater than or equal to the first preset temperature, the wireless charging is interrupted, and when the temperature of the metal part 20 is less than the first preset temperature, the wireless charging is resumed. In actual application, the control module 30 needs to frequently send control instructions, and the charging base 200 also needs to frequently act, which can also cause the wireless charging process of the wireless earphone charging box 100 to be frequently interrupted and resumed, thereby causing the wireless charging process of the wireless earphone charging box 100 to be unstable. Therefore, in order to improve the wireless charging stability of the wireless earphone charging box 100, the second preset temperature can be set to be less than the first preset temperature, that is, two different temperature values are set to control the interruption of wireless charging and the resumption of wireless charging. For example, the first preset temperature can be set to 40 degrees, and the second preset temperature can be set to 30 degrees, 25 degrees, etc.

[0070] Therefore, in the charging process of the wireless earphone charging box 100, the temperature of the metal part 20 can be prevented from being too high, the wireless earphone charging box 100 can be charged as quickly as possible, and the wireless charging process of the wireless earphone charging box 100 can be prevented from being frequently interrupted and resumed, thereby improving the wireless charging stability of the wireless earphone charging box 100.

[0071] In actual application, the following situation can exist: when the temperature detected by the temperature detection module 70 is too high, for example, the detected temperature is greater than the first preset temperature, after the control module 30 sends the stop charging instruction to the charging base 200 through the coil 10, due to various factors, for example, due to the interference of the wireless signal of other electronic devices, the charging base 200 fails to normally receive the stop charging instruction, or due to various factors, after the charging base 200 receives the stop charging instruction, fails to successfully stop radiating electric energy. Therefore, when these situations occur, even if the control module 30 sends the stop charging instruction to the charging base 200 through the coil 10, the charging base 200 will still continue to radiate electric energy, thereby causing the temperature of the metal part 20 to continue to rise, and causing danger to the wireless charging process of the wireless earphone charging box 100.

[0072] Therefore, in order to ensure the wireless charging safety of the wireless earphone charging box 100, after the control module 30 sends the first control instruction to the charging base 200 through the coil 10 to make the charging base 200 stop radiating electric energy according to the first control instruction, for example, after sending the stop charging instruction to the charging base 200, the control module 30 controls the wireless communication with the charging base 200 through the coil 10 to be disconnected. For example, the control module 30 can control the wireless communication with the charging base 200 through the coil 10 to be disconnected within a preset time period after sending the first control instruction to the charging base 200, for example, within 5 seconds. It can be understood that the preset time period can be set according to actual needs, and can be related to the time of sending the handshake signal by the charging base 200, for example, the communication is disconnected before receiving the handshake signal sent by the charging base 200, to avoid the charging base 200 starting to radiate electric energy again due to the response to the handshake signal.

[0073] It can be understood that after the control module 30 sends the first control instruction to the charging base 200 through the coil 10, even if the charging base 200 fails to receive the first control instruction, or the charging base 200 receives the first control instruction but fails to successfully stop radiating electric energy, since the wireless communication with the charging base 200 through the coil 10 is disconnected, at this time the charging base 200 cannot detect the wireless communication with the wireless earphone charging box 100, and the charging base 200 defaults that the wireless earphone charging box 100 is outside the range of wireless charging, so the charging base 200 will automatically stop radiating electric energy to interrupt the wireless charging process and ensure the safety of the wireless charging.

[0074] It can be understood that after the wireless communication with the charging base 200 is disconnected through the coil 10, the charging base 200 can continue to send the handshake signal outward. It can be understood that at this time, the control module 30 can control the coil 10 not to respond to the handshake signal sent by the charging base 200, so as to keep the wireless communication between the wireless earphone charging box 100 and the charging base 200 disconnected.

[0075] Subsequently, when the temperature detected by the temperature detection module 70 is less than the second preset temperature, the control module 30 controls the coil 10 to respond to the handshake signal sent by the charging base 200, for example, sends a response signal to the charging base 200, so as to re-establish the wireless communication between the wireless earphone charging box 100 and the charging base 200.

[0076] It can be understood that in some embodiments, after the control module 30 controls the coil 10 to respond to the handshake signal sent by the charging base 200 to establish the wireless communication between the wireless earphone charging box 100 and the charging base 200, the control module 30 can send a second control instruction to the charging base 200 through the coil 10, so that the charging base 200 starts to radiate electric energy according to the second control instruction. Thus, the wireless charging process can be resumed, and the wireless earphone charging box 100 continues to be charged.

[0077] Wherein, the process that the charging base 200 sends the handshake signal outward, and the wireless earphone charging box 100 responds to the handshake signal to establish the wireless communication between the wireless earphone charging box 100 and the charging base 200 can refer to the wireless charging protocol.

[0078] In some embodiments, referring to Figure 6 , Figure 6 A second structure diagram of the wireless earphone charging box 100 provided by the embodiments of the present application.

[0079] The wireless earphone charging box 100 further comprises a communication module 80. The communication module 80 is configured to provide a communication signal. Wherein, the coil 10 is electrically connected with the communication module 80. The coil 10 is configured to interrupt the transmission of the communication signal to disconnect the wireless communication with the charging base 200, or transmit the communication signal to establish the wireless communication with the charging base 200.

[0080] For example, after the control module 30 sends the first control instruction to the charging base 200 to make the charging base 200 stop radiating electric energy according to the first control instruction, the control module 30 controls the coil 10 to interrupt the transmission of the communication signal, so that the wireless communication with the charging base 200 through the coil 10 is disconnected. Thus, the charging base 200 stopping radiating electric energy can be indirectly realized.

[0081] In some embodiments, referring to Figure 7 ,Figure 7 This is a schematic diagram of a third structure of the wireless earphone charging case 100 provided in an embodiment of this application.

[0082] The communication module 80 includes a signal modulation circuit 81 and a communication control circuit 82. The signal modulation circuit 81 provides the communication signal. The communication control circuit 82 is electrically connected to the signal modulation circuit 81, the coil 10, and the control module 30. Therefore, the communication signal provided by the signal modulation circuit 81 can be transmitted to the coil 10 through the communication control circuit 82, and then transmitted to the charging base 200 through the coil 10, thereby establishing wireless communication with the charging base 200.

[0083] The control module 30 can be used to control the communication control circuit 82 to control the communication control circuit 82 to be connected or disconnected from the coil 10, so that the coil 10 transmits the communication signal or interrupts the transmission of the communication signal, thereby enabling the establishment or disconnection of wireless communication with the charging base 200 through the coil 10.

[0084] For example, when it is necessary to establish wireless communication with the charging dock 200, the control module 30 can control the communication control circuit 82 to conduct with the coil 10, so that the coil 10 transmits the communication signal to the charging dock 200, such as responding to the handshake signal broadcast by the charging dock 200, in order to establish wireless communication with the charging dock 200.

[0085] When it is necessary to disconnect the wireless communication with the charging base 200, the control module 30 can control the communication control circuit 82 to disconnect from the coil 10, so that the coil 10 interrupts the transmission of the communication signal, and thus the communication signal cannot be transmitted to the charging base 200, disconnecting the wireless communication with the charging base 200.

[0086] In this embodiment, the control module 30 can send a control command to the charging base 200 so that the charging base 200 stops radiating electrical energy according to the control command, for example, after sending a stop charging command to the charging base 200, control the communication control circuit 82 to disconnect from the coil 10 so that the coil 10 interrupts the transmission of the communication signal, thereby disconnecting the wireless communication with the charging base 200.

[0087] In some embodiments, reference Figure 8 , Figure 8 This is a schematic diagram of the fourth structure of the wireless earphone charging case 100 provided in the embodiments of this application.

[0088] The coil 10 can be connected with the receiving circuit 40 through the capacitor C1, connected with the communication control circuit 82 through the capacitors C2 and C3, and the communication control circuit 82 is connected with the signal modulation circuit 81 through the MOS (Metal Oxide Semiconductor) tubes M1 and M2.

[0089] The capacitor C1 can filter the interference signals in the electric energy received by the coil 10. The capacitors C2 and C3 can also filter the electric energy received by the coil 10 to avoid being transmitted to the communication control circuit 82 and the signal modulation circuit 81.

[0090] The receiving circuit 40 includes the diodes D1, D2, D3 and D4, and the capacitor C4. The diode D1, the capacitor C4 and the diode D3 are connected in series in sequence and connected to one end of the coil 10; the diode D2, the capacitor C4 and the diode D4 are connected in series in sequence and connected to the other end of the coil 10. The battery 50 can be connected in parallel across the capacitor C4 to charge the battery 50.

[0091] It can be understood that the capacitance values of the capacitors C1, C2, C3 and C4 can be set according to actual needs, the specifications of the MOS tubes M1 and M2 can be set according to actual needs, and the specifications of the diodes D1, D2, D3 and D4 can also be set according to actual needs.

[0092] The communication control circuit 82 includes the first port P1, the second port P2 and the third port P3. The first port P1 is electrically connected with the signal modulation circuit 81 and the coil 10. For example, the first port P1 can be electrically connected with the signal modulation circuit 81 through the MOS tubes M1 and M2, and electrically connected with the coil 10 through the capacitors C2 and C3. The second port P2 is grounded. The third port P3 is electrically connected with the control module 30.

[0093] It can be understood that the communication control circuit 82 can be electrically connected with both ends of the coil 10, so the first port P1, the second port P2 and the third port P3 can each include two sub-ports. For example, the first port P1 can include the sub-ports P11 and P12, the second port P2 can include the sub-ports P21 and P22, and the third port P3 can include the sub-ports P31 and P32.

[0094] The sub-port P11 is electrically connected with the signal modulation circuit 81 through the MOS tube M1 and electrically connected with one end of the coil 10 through the capacitor C2. The sub-port P12 is electrically connected with the signal modulation circuit 81 through the MOS tube M2 and electrically connected with the other end of the coil 10 through the capacitor C3. The sub-ports P21 and P22 are grounded. The sub-ports P31 and P32 are electrically connected with the control module 30.

[0095] In addition, the sub-port P31 can be connected to the power supply V1 through the resistor R1, and the sub-port P32 can be connected to the power supply V2 through the resistor R2. The resistance values of the resistors R1 and R2 can be set according to actual needs. The power supplies V1 and V2 can be, for example, both 5V (volt) power supplies.

[0096] The control module 30 can send a control signal to the communication control circuit 82, for example, through the third port P3 to control the first port P1 and the second port P2 to be turned on or turned off. For example, the control sub-port P11 and the control sub-port P21 are turned on or turned off, and the control sub-port P12 and the control sub-port P22 are turned on or turned off.

[0097] It can be understood that, since the second port P2 is grounded, for example, the sub-ports P21 and P22 included in the second port P2 are all grounded, when the first port P1 and the second port P2 are turned on, the signal of the first port P1 will be directly returned to the ground, at this time, the coil 10 is equivalent to a short circuit to the communication signal, that is, the coil 10 and the communication control circuit 82 are not turned on, at this time, it can also be considered that the coil 10 and the communication control circuit 82 are turned off. Therefore, the communication signal provided by the signal modulation circuit 81 will be directly returned to the ground through the first port P1, and will not be transmitted to the outside through the coil 10. When the first port P1 and the second port P2 are turned off, the signal of the first port P1 will not be returned to the ground, at this time, the coil 10 and the communication control circuit 82 are turned on, therefore, the communication signal provided by the signal modulation circuit 81 can be transmitted to the coil 10, and transmitted to the charging base 200 through the coil 10.

[0098] Therefore, in the embodiment of the application, when it is needed to turn off the wireless communication with the charging base 200, for example, after the control module 30 sends a control instruction to the charging base 200 to make the charging base 200 stop radiating electric energy according to the control instruction, the control module 30 can send a control signal to the communication control circuit 82 to make the first port P1 and the second port P2 turned on, that is, to make the control sub-port P11 and the control sub-port P21 turned on, and to make the control sub-port P12 and the control sub-port P22 turned on, so that the communication signal provided by the signal modulation circuit 81 is returned to the ground through the second port P2. At this time, the communication signal provided by the signal modulation circuit 81 will not be transmitted to the outside through the coil 10, and therefore the wireless communication with the charging base 200 can be turned off.

[0099] When it is needed to establish or maintain the wireless communication with the charging base 200, the control module 30 can send a control signal to the communication control circuit 82 to make the first port P1 and the second port P2 turned off, that is, to make the control sub-port P11 and the control sub-port P21 turned off, and to make the control sub-port P12 and the control sub-port P22 turned off. At this time, the communication signal provided by the signal modulation circuit 81 can be transmitted to the outside through the coil 10, and therefore the wireless communication with the charging base 200 can be established or maintained.

[0100] In some embodiments, continue to refer to Figure 8 The communication control circuit 82 includes transistors, such as transistors T1 and T2. The transistors are electrically connected to a first port P1, a second port P2, and a third port P3. For example, transistor T1 is electrically connected to sub-ports P11, P21, and P31, and transistor T2 is electrically connected to sub-ports P12, P22, and P32.

[0101] The control module 30 is used to control the transistor to turn on or off the first port P1 and the second port P2. For example, the control module 30 can be used to turn on sub-port P11 and sub-port P21, and to turn on sub-port P12 and sub-port P22, so as to disconnect the wireless communication with the charging dock 200. Alternatively, the control module 30 can be used to turn off sub-port P11 and sub-port P21, and to turn off sub-port P12 and sub-port P22, so as to establish or maintain the wireless communication with the charging dock 200.

[0102] In some embodiments, reference Figure 9 , Figure 9 This is a fifth structural schematic diagram of the wireless earphone charging case 100 provided in an embodiment of this application.

[0103] The communication control circuit 82 includes analog switches, such as analog switches K1 and K2. Analog switches K1 and K2 are used to turn the signal modulation circuit 81 and the coil 10 on or off. Analog switches K1 and K2 can be implemented using devices such as MOSFETs or TFTs (Thin Film Transistors). Analog switch K1 is electrically connected to the signal modulation circuit 81 via MOSFET M1, connected to one end of the coil 10 via capacitor C2, and electrically connected to the control module 30. Analog switch K2 is electrically connected to the signal modulation circuit 81 via MOSFET M2, connected to the other end of the coil 10 via capacitor C3, and electrically connected to the control module 30.

[0104] The control module 30 is used to control the analog switches to be turned on or off, for example, to control analog switches K1 and K2 to be turned on simultaneously, or to control analog switches K1 and K2 to be turned off simultaneously, so that the signal modulation circuit 81 and the coil 10 are turned on or off.

[0105] For example, when it is necessary to disconnect the wireless communication with the charging dock 200, the control module 30 can send control signals to the analog switches K1 and K2, causing the analog switches K1 and K2 to open simultaneously. At this time, the electrical connection between the signal modulation circuit 81 and the coil 10 is broken. Therefore, the communication signal provided by the signal modulation circuit 81 will not be transmitted outward through the coil 10, thereby disconnecting the wireless communication with the charging dock 200.

[0106] When it is necessary to establish or maintain the wireless communication with the charging base 200, the control module 30 can send a control signal to the analog switches K1 and K2 to make the analog switches K1 and K2 conduct at the same time, at this time, the signal modulation circuit 81 keeps electrical connection with the coil 10. At this time, the communication signal provided by the signal modulation circuit 81 can be transmitted outward through the coil 10, so that the wireless communication with the charging base 200 can be established or maintained.

[0107] The charging box and the wireless charging system provided by the embodiments of the present application are described in detail above. The principles and implementation manners of the present application are described by applying specific examples in the present article, and the above description of the embodiments is only used to help understand the present application. Meanwhile, according to the idea of the present application, the specific implementation manners and application ranges will be changed by the person skilled in the art, and the above description of the present application should not be understood as the limitation of the present application.

Claims

1. A wireless earphone charging case, characterized in that, The charging box body and the charging box cover are connected through a metal rotating shaft. A coil is arranged in the charging box body, and is used for wireless communication between the wireless earphone charging box and a charging base and for receiving electric energy from the charging base through electromagnetic induction when maintaining wireless communication with the charging base. A metal part includes the metal rotating shaft, and is arranged at a distance from the coil. When the coil receives electric energy from the charging base through electromagnetic induction, the metal part absorbs electric energy from the charging base through electromagnetic induction and generates heat. A control module is arranged in the charging box body and is electrically connected to the coil. When the temperature of the metal part is greater than a first preset temperature, the control module sends a first control instruction to the charging base through the coil to make the charging base stop radiating electric energy according to the first control instruction, and controls the coil to be disconnected from the wireless communication with the charging base and not to respond to a handshake signal sent by the charging base within a preset time period after the first control instruction is sent. The preset time period is less than a time period in which the coil receives the handshake signal sent by the charging base. The control module is further configured to send a second control instruction to the charging base through the coil according to the temperature of the metal part, so that the charging base starts radiating electric energy according to the second control instruction. The charging box body includes:

2. The wireless earphone charging case of claim 1, wherein, A first side wall, and the metal rotating shaft is connected to the first side wall. A second side wall, and the coil is arranged in the second side wall. The charging box body includes:

3. The wireless earphone charging case of claim 1, wherein, A first side wall, and the metal rotating shaft is connected to the first side wall, and the coil is arranged in the first side wall. The charging box body includes:

4. The wireless earphone charging case of claim 1, wherein, A first side wall, and the metal rotating shaft is connected to the first side wall. A second side wall. The coil is arranged in the first side wall and the second side wall. The charging box body is provided with a containing space for containing a wireless earphone.

5. The wireless earphone charging case of claim 1, wherein, Further comprising:

6. The wireless earphone charging case according to any one of claims 1 to 5, characterized in that, A temperature detection module is arranged in the charging box body, and is used for detecting the temperature of the metal part. The temperature detection module is electrically connected to the control module. The control module is further configured to:

7. The wireless earphone charging case of claim 6, wherein, When the temperature detected by the temperature detection module is less than a second preset temperature, the control module controls the coil to respond to a handshake signal sent by the charging base to establish wireless communication between the wireless earphone charging box and the charging base, so that the charging base charges the wireless earphone charging box. The second preset temperature is less than or equal to the first preset temperature. The control module is further configured to:

8. The wireless earphone charging case of claim 7, wherein, After the control module controls the coil to respond to the handshake signal sent by the charging base to establish wireless communication between the wireless earphone charging box and the charging base, the control module sends a second control instruction to the charging base through the coil to make the charging base start radiating electric energy according to the second control instruction, so that the charging base charges the wireless earphone charging box. Further comprising:

9. The wireless earphone charging case of claim 1, wherein, A communication module is arranged in the charging box body, and is used for providing a communication signal. ​ The coil is electrically connected with the communication module, and the coil is configured to interrupt transmission of the communication signal to disconnect wireless communication between the wireless earphone charging case and the charging base or to transmit the communication signal to establish wireless communication between the wireless earphone charging case and the charging base.

10. The wireless earphone charging case of claim 9, wherein, The communication module comprises: a signal modulation circuit configured to provide the communication signal; a communication control circuit electrically connected with the signal modulation circuit, the coil and the control module; the control module is configured to control the communication control circuit and the coil to be turned on or disconnected, so that the wireless earphone charging case establishes or disconnects wireless communication with the charging base.

11. The wireless earphone charging case of claim 10, wherein: the communication control circuit comprises a first port, a second port and a third port, the first port is electrically connected with the signal modulation circuit and the coil, the second port is grounded, and the third port is electrically connected with the control module; the control module is configured to control the first port and the second port to be turned on or disconnected.

12. The wireless earphone charging case of claim 11, wherein: the communication control circuit comprises a transistor, and the transistor is electrically connected with the first port, the second port and the third port; the control module is configured to control the transistor to turn on or disconnect the first port and the second port.

13. The wireless earphone charging case of claim 10, wherein: the communication control circuit comprises an analog switch configured to turn on or disconnect the signal modulation circuit and the coil; the control module is configured to control the analog switch to be turned on or disconnected.

14. A charging case, characterized in that, comprises: a charging case body and a charging case cover, the charging case cover is connected with the charging case body through a metal rotating shaft; a coil arranged in the charging case body, the coil is used for wireless communication between the charging case and the charging base, and is used for receiving electric energy from the charging base through electromagnetic induction when maintaining wireless communication with the charging base; a metal part, the metal part comprises the metal rotating shaft, the metal part is arranged in a spaced manner with the coil, and the metal part absorbs electric energy from the charging base through electromagnetic induction and generates heat when the coil receives electric energy from the charging base through electromagnetic induction; a control module arranged in the charging case body and electrically connected with the coil, the control module is configured to send a first control instruction to the charging base through the coil when the temperature of the metal part is greater than a first preset temperature, so that the charging base stops radiating electric energy according to the first control instruction, and controls the coil to disconnect wireless communication with the charging base and does not respond to a handshake signal sent by the charging base within a preset time period after sending the first control instruction; the preset time period is less than a time period in which the coil receives the handshake signal sent by the charging base. The control module is further configured to send a second control instruction to the charging base through the coil according to the temperature of the metal part, so that the charging base starts to radiate electric energy according to the second control instruction.

15. The charging case of claim 14, wherein, The charging box body comprises: a first side wall, the metal rotating shaft being connected with the first side wall; a second side wall, the coil being arranged on the second side wall.

16. The charging case of claim 14, wherein, The charging box body comprises: a first side wall, the metal rotating shaft being connected with the first side wall, and the coil being arranged on the first side wall.

17. The charging case of claim 14, wherein, The charging box body comprises: a first side wall, the metal rotating shaft being connected with the first side wall; a second side wall; wherein the coil is arranged on the first side wall and the second side wall.

18. A wireless charging system, comprising: comprise: a charging base for radiating electric energy in a wireless manner; a wireless earphone charging box, the wireless earphone charging box being the wireless earphone charging box according to any one of claims 1 to 13.

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