Wireless earphone charging box, charging box and wireless charging system

Abstract

The embodiment of the present application provides a wireless headset charging box, a charging box and a wireless charging system, including: a coil, which is used for the wireless headset charging box to establish wireless communication with the 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, 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, which is used to establish wireless communication between the wireless headset charging box and the charging base through the coil or disconnect the wireless communication with the charging base according to the temperature control of the metal part. In the wireless headset charging box, 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, so that the temperature of the metal part can be kept within a controllable range, thereby improving the safety of the wireless headset charging box during the wireless charging process.

Description

Technical Field

[0001] The present application relates to the field of wireless charging technology, and in particular to a wireless headset charging box, a charging box and a wireless charging system. Background Art

[0002] With the development of electronic technology, wireless charging technology has become more and more mature, so that more and more devices currently support wireless charging.

[0003] When an electronic device is wirelessly charged, the electronic device generates heat, causing the temperature to rise, thereby affecting the safety of wireless charging of the electronic device. Summary of the invention

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

[0005] The present application embodiment provides a wireless headset charging box, comprising:

[0006] A coil, used for wireless communication between the wireless headset charging box and the charging base, and for receiving electric energy from the charging base through electromagnetic induction when maintaining wireless communication with the charging base;

[0007] a metal part, arranged at a distance from the coil, and 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;

[0008] A control module is electrically connected to the coil, and is used to establish wireless communication between the wireless headset charging box and the charging base or disconnect wireless communication with the charging base through the coil according to the temperature control of the metal part.

[0009] The present application also provides a charging box, including:

[0010] A coil, used for the charging box to communicate wirelessly with the charging base, and for receiving electric energy from the charging base through electromagnetic induction when maintaining wireless communication with the charging base;

[0011] a metal part, arranged at a distance from the coil, and 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;

[0012] A control module is electrically connected to the coil, and is used to establish wireless communication between the charging box and the charging base or disconnect wireless communication with the charging base through the coil according to the temperature control of the metal part.

[0013] The present application also provides a wireless charging system, including:

[0014] a charging base for radiating electrical energy wirelessly;

[0015] A wireless earphone charging box, wherein the wireless earphone charging box is the above-mentioned wireless earphone charging box.

[0016] In the wireless headset charging box provided in the embodiment of the present application, the control module can establish or disconnect wireless communication with the charging base through the coil according to the temperature control of the metal part, so that the charging base starts to radiate electric energy or stops radiating electric energy. Therefore, 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 generates 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, thereby improving the safety of the wireless headset charging box during the wireless charging process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0018] Figure 1 A schematic diagram of the structure of a wireless charging system provided in an embodiment of the present application.

[0019] Figure 2 This is a front view of the wireless earphone charging box provided in an embodiment of the present application.

[0020] Figure 3 A first side view of the wireless earphone charging box provided in an embodiment of the present application.

[0021] Figure 4 A second side view of the wireless earphone charging box provided in an embodiment of the present application.

[0022] Figure 5 A schematic diagram of the first structure of a wireless earphone charging box provided in an embodiment of the present application.

[0023] Figure 6 A second structural schematic diagram of the wireless earphone charging box provided in an embodiment of the present application.

[0024] Figure 7 This is a third structural schematic diagram of the wireless earphone charging box provided in an embodiment of the present application.

[0025] Figure 8This is a fourth structural schematic diagram of the wireless earphone charging box provided in an embodiment of the present application.

[0026] Fig. 9 This is a fifth structural schematic diagram of the wireless earphone charging box provided in an embodiment of the present application. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0028] The embodiment of the present application provides a wireless charging system. The wireless charging system can be used to charge an electronic device wirelessly, for example, a charging box. The charging box can be used to charge other electronic devices. For example, the charging box can be a wireless headset charging box, and the wireless headset charging box can be used to charge wireless headsets.

[0029] refer to Figure 1 , Figure 1 A schematic diagram of the structure of a wireless charging system 1000 provided in an embodiment 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 source, such as a power socket. The following description is only based on the example that the charging box 100 is a wireless headset charging box.

[0030] The wireless headset 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 may be a wound coil, for example, a coil formed by winding copper wire. The coil 10 may be used to send and receive wireless signals, so that the wireless headset charging box 100 can communicate wirelessly with the charging base 200; on the other hand, the coil 10 may be electrically connected to the charging base 200 by electromagnetic coupling, so as to receive electrical energy from the charging base 200 by electromagnetic induction.

[0032] It is understandable that the charging base 200 may also include a coil. The coil in the charging base 200 can be used to radiate electrical energy and to perform wireless communication with the wireless headset charging box 100.

[0033] During the operation of the wireless charging system 1000, the charging base 200 may first send a handshake signal in a broadcasting manner, for example, a handshake signal may be sent once every 1 second. The handshake signal may not have a specific receiving end, but is sent outward by broadcasting, and 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 outward, wireless communication has not yet been established with the wireless headset charging box 100. At this time, the charging base 200 does not radiate electrical energy.

[0034] Subsequently, when the wireless headset charging box 100 is within the communication range with the charging base 200, for example, when the user places the wireless headset charging box 100 on the charging base 200, the wireless headset 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 headset charging box 100 according to the response signal. It can be understood that after the charging base 200 establishes wireless communication with the wireless headset charging box 100, the wireless communication can be maintained. For example, the wireless headset charging box 100 can send an energy signal to the charging base 200 at a fixed time through the coil 10, so that the charging base 200 can control the radiation of electric energy according to the situation of the energy signal after receiving the energy signal. When the charging base 200 does not receive the energy signal or the received energy signal does not meet the preset situation, 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 headset charging box 100, it can start to radiate electric energy. When the wireless headset charging box 100 establishes and maintains wireless communication with the charging base 200, it can receive electric energy from the charging base 200 through electromagnetic induction. Thus, the charging base 200 can charge the wireless headset charging box 100.

[0036] It should be noted that only when the wireless headset charging box 100 establishes and maintains wireless communication with the charging base 200, the charging base 200 will assume by default that the wireless headset charging box 100 is within the wireless charging range, and the charging base 200 will radiate electrical energy. When the wireless headset charging box 100 and the charging base 200 disconnect the wireless communication, even if the wireless headset charging box 100 is still placed on the charging base 200, the charging base 200 will assume by default that the wireless headset charging box 100 is outside the wireless charging range. At this time, in order to ensure the safety of wireless charging, the charging base 200 will not radiate electrical energy.

[0037] Therefore, once the wireless headset charging box 100 disconnects the wireless communication with the charging base 200, the charging base 200 stops radiating electrical energy, or if wireless communication cannot be established again with the wireless headset 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 electrical energy.

[0038] The metal part 20 is a metal component in the wireless headset charging box 100, such as a copper component, an aluminum alloy component, etc. The metal part 20 is spaced apart from the coil 10. It is understandable that when the charging base 200 radiates electric energy, the metal part 20 can also be electrically connected to the charging base 200 by electromagnetic coupling. Therefore, when the coil 10 receives electric energy from the charging base 200 by electromagnetic induction, the metal part 20 can also absorb electric energy from the charging base 200 by electromagnetic induction and generate heat, thereby causing the temperature of the metal part 20 to rise. It is understandable that when the temperature of the metal part 20 rises, the temperature of the wireless headset charging box 100 will cause the temperature of the wireless headset charging box 100 to rise, thereby affecting the safety of the wireless headset charging box 100 during the charging process.

[0039] The control module 30 is the control center of the wireless headset charging box 100. The control module 30 may be, for example, an MCU (MicroControl Unit). The control module 30 is electrically connected to the coil 10. Among them, the control module 30 may be used to control the charging process of the wireless headset charging box 100. For example, the control module 30 may be used to establish wireless communication between the wireless headset charging box 100 and the charging base 200 or disconnect the wireless communication with the charging base 200 through the coil 10 according to the temperature control of the metal part 20. It can be understood that after establishing wireless communication with the charging base 200 through the coil 10, the charging base 200 defaults to the wireless headset charging box 100 being within the range of wireless charging, at which time the charging base 200 can radiate electrical energy to charge the wireless headset charging box 100. After disconnecting the wireless communication with the charging base 200 through the coil 10, the charging base 200 defaults to the wireless headset charging box 100 being outside the range of wireless charging, at which time the charging base 200 stops radiating electrical energy.

[0040] For example, during the charging process of the wireless headset charging box 100, when the temperature of the metal part 20 is too high, the control module 30 can control the disconnection of wireless communication with the charging base 200 through the coil 10, so that the charging base 200 stops radiating electrical energy, so that the metal part 20 no longer continues to generate heat and gradually cools down. When the temperature of the metal part 20 drops to a lower range, the control module 30 controls the establishment of wireless communication with the charging base 200 through the coil 10, so that the charging base 200 starts to radiate electrical energy to continue charging the wireless headset charging box 100. 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 headset charging box 100 is within a controllable range, thereby improving the safety of the wireless headset charging box 100 during the wireless charging process.

[0041] The receiving circuit 40 is electrically connected to the coil 10. The receiving circuit 40 is used to process the electric energy received by the coil 10, such as filtering, rectifying, etc., so as to form a charging current.

[0042] The battery 50 is electrically connected to the receiving circuit 40, and the current output by the receiving circuit 40 can be used to charge the battery 50. Thus, the electric energy received by the coil 10 can be stored by the battery 50.

[0043] Also refer to Figure 2 , Figure 3 as well as Figure 4 , Figure 2 This is a front view of the wireless headset charging box 100 provided in an embodiment of the present application. Figure 3 This is a first side view of the wireless headset charging box 100 provided in an embodiment of the present application. Figure 4 A second side view of the wireless earphone charging box provided in an embodiment of the present application.

[0044] The wireless headset charging box 100 includes a charging box body 61, a charging box cover 62, and a metal shaft 63. The charging box cover 62 is connected to the charging box body 61, for example, through the metal shaft 63. The charging box body 61, the metal shaft 63, and the charging box cover 62 can form a hinge structure, so the charging box cover 62 can rotate relative to the charging box body 61 around the metal shaft 63, so that the wireless headset charging box 100 can be switched between an open state and a closed state. When the wireless headset charging box 100 is in an open state, Figure 2 As shown; when the wireless headset charging box 100 is in a closed state, the charging box cover 62 and the charging box body 61 are in a mutually attached state. Among them, the material of the metal shaft 63 can include materials such as aluminum alloy.

[0045] Among them, the coil 10 can be arranged in the charging box body 61. It can be understood that the coil 10 is arranged in the charging box body 61, including at least one of the following: the coil 10 can be arranged on the inner surface of the shell close to the charging box body 61, the coil 10 can be arranged on the outer surface of the shell close to the charging box body 61, and the coil 10 can be arranged on the shell of the charging box body 61, for example, attached to the inner surface or outer surface of the shell, or embedded in the shell. In the field of wireless charging, the distance between the two coils at 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 setting can be set according to the actual product charging efficiency. Thus, when the wireless headset charging box 100 is placed on the charging base 200, the coil 10 can receive electrical energy from the charging base 200 through electromagnetic induction, thereby charging the wireless headset charging box 100. The control module 30 can be arranged in the charging box body 61, so that the charging process of the wireless headset charging box 100 can be controlled by the control module 30.

[0046] It is understandable that, since the charging box cover 62 is connected to the charging box body 61 through the metal shaft 63, when the coil 10 receives electric energy from the charging base 200, the metal 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 may include a metal shaft 63.

[0047] In some embodiments, a housing space 610 is provided in the charging box body 61. The housing space 610 may be a cavity provided in the charging box body 61. The housing space 610 may be used to accommodate wireless earphones. For example, wireless earphones may be placed in the housing space 610 so that the wireless earphone charging box 100 charges the wireless earphones. In addition, it is understood that the control module 30 may also be provided in the housing space 610.

[0048] In some embodiments, the charging box body 61 includes a side wall 611, a side wall 612, a side wall 613, a side wall 614 and a bottom wall 615. Among them, the side wall 612 is arranged opposite to the side wall 611, and the side wall 614 is arranged opposite to the side wall 613. The side wall 611, the side wall 613, the side wall 612, and the side wall 614 are connected in sequence. The bottom wall 615 is connected to the side wall 611, the side wall 613, the side wall 612, and the side wall 614. Therefore, the side wall 611, the side wall 613, the side wall 612, the side wall 614 and the bottom wall 615 can be surrounded to form an accommodating space 610. It can be understood that the direction relative to the bottom wall 615 can form an opening of the charging box body 61, that is, an opening of the accommodating space 610.

[0049] In some embodiments, the metal shaft 63 and the coil 10 can be arranged on the same side wall of the charging box body 61, for example, the metal shaft 63 is connected to the first side wall of the charging box body 61, and the coil 10 is also arranged on the first side wall of the charging box body 61. Figure 3 In this case, since the metal shaft 63 is close to the coil 10, the temperature rises greatly during the wireless charging process. However, this design is more conducive to opening the cover and taking out the earphones during the wireless charging process of the wireless earphone charging box 100, and may be more in line with the user's usage habits, so it has certain advantages in use.

[0050] In some embodiments, the metal shaft 63 and the coil 10 are arranged on different side walls of the charging box body 61. For example, the metal shaft 63 is connected to the first side wall of the charging box body 61, and the coil 10 is arranged on the second side wall of the charging box body 61. Figure 4 In this case, since the metal shaft 63 is relatively far from the coil 10, the temperature rise is small during the wireless charging process. However, this design is not conducive to opening the cover and taking out the earphones during the wireless charging process of the wireless earphone charging box 100, and the placement of the wireless earphone charging box 100 on the charging base 200 for charging may be different from the placement method that the user is accustomed to.

[0051] In some embodiments, the coil 10 can also be provided on multiple side walls of the charging box body 61. For example, the metal shaft 63 is connected to the first side wall of the charging box body 61, and the coil 10 is provided on the first side wall and the second side wall of the charging box body 61 at the same time. Thus, when any one of the first side wall and the second side wall is located on the charging base 200, the wireless headset charging box 100 can be quickly charged, thereby meeting the user's needs for placing the wireless headset charging box at multiple angles. It is understandable that in this case, when the wireless headset charging box 100 starts wireless charging, it can select which side wall or which side walls' coils to use to receive electrical energy according to the wireless charging efficiency of the coils of each side wall, so as to improve the wireless charging efficiency.

[0052] The first side wall may be any one of the side walls 611, 612, 613, and 614, and the second side wall is a different side wall from the first side wall. For example, the first side wall may be the side wall 611, the second side wall may be the side wall 612 disposed opposite to the side wall 611, or the second side wall may be the side wall 613 or the side wall 614 disposed adjacent to the side wall 611.

[0053] The coil 10 may be disposed on the first side wall, or on the second side wall, or on both the first side wall and the second side wall, which may be achieved in a variety of ways.

[0054] 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 after the coil 10 is provided in the groove, a non-metallic material such as plastic is 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 the use of the wireless headset charging box 100, thereby improving the installation stability of the coil 10.

[0055] For another example, in some embodiments, the coil 10 may also be attached to the surface of the first side wall or the second side wall or may be disposed close to the surface of the first side wall or the second side wall, for example, the coil 10 may be attached to the inner surface of the first side wall or the second side wall by glue. It is understandable 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 may be simplified.

[0056] It can be understood that during the charging process of the wireless headset charging box 100, the coil 10 is close to the charging base 200. When the metal shaft 63 and the coil 10 are arranged on the same side wall of the charging box body 61, since the distance between the metal shaft 63 and the coil 10 is small, that is, the distance between the metal shaft 63 and the charging base 200 is also small, when the coil 10 receives electric energy from the charging base 200, the metal shaft 63 absorbs electric energy from the charging base 200 and generates heat. The situation is more serious, which will cause the temperature of the metal shaft 63 to rise rapidly.

[0057] Therefore, in some embodiments, in order to reduce the heat generated by the metal shaft 63 during charging, the metal shaft 63 and the coil 10 can be arranged on different side walls of the charging box body 61 to increase the distance between the metal shaft 63 and the coil 10, that is, to increase the distance between the metal shaft 63 and the charging base 200, thereby reducing the heat generated by the metal shaft 63.

[0058] In the description of this application, it should be understood that terms such as "first" and "second" are only used to distinguish similar objects and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0059] In some embodiments, reference Figure 5 , Figure 5 This is a schematic diagram of the first structure of the wireless headset charging box 100 provided in an embodiment of the present application.

[0060] The wireless headset charging box 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 obtain the temperature of the metal part 20.

[0061] Among them, the temperature detection module 70 may include a temperature sensor, and the temperature sensor may be implemented, for example, by a thermistor. The temperature detection module 70 may be disposed on the metal part 20, for example, attached to the surface of the metal part 20. The temperature detection module 70 may also be disposed at other locations of the wireless headset charging box 100, for example, disposed on the side wall of the charging box body 61. It is understandable that when the temperature detection module 70 is disposed at other locations, it is only necessary to establish a corresponding relationship between the temperature of the metal part 20 and the temperature of the location where the temperature detection module 70 is located, and the temperature of the metal part 20 can be detected by the temperature detection module 70.

[0062] In some embodiments, when the temperature detected by the temperature detection module 70 is greater than or equal to the first preset temperature, the control module 30 controls the wireless communication with the charging base 200 to be disconnected through the coil 10, so that the charging base 200 stops radiating electric energy. The first preset temperature is a preset temperature value, which can be set based on experience or measured based on experiments. For example, the first preset temperature can be 40 degrees.

[0063] For example, when the temperature detected by the temperature detection module 70 is greater than or equal to 40 degrees, the control module 30 controls the wireless communication with the charging base 200 to be disconnected through the coil 10. At this time, the charging base 200 cannot detect the wireless communication with the wireless headset charging box 100, and it will be assumed that the wireless headset charging box 100 is outside the range of wireless charging. At this time, the charging base 200 stops radiating electrical energy. Therefore, through the control of the control module 30, the wireless charging process can be temporarily interrupted to prevent the temperature of the metal part 20 from continuing to rise, thereby ensuring the safety of the wireless headset charging box 100.

[0064] When the temperature detected by the temperature detection module 70 is lower than the second preset temperature, the control module 30 controls the wireless communication with the charging base 200 to be established through the coil 10, so that the charging base 200 starts to radiate electric energy. The second preset temperature is lower 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 lower than 40 degrees, such as 25 degrees.

[0065] For example, when the temperature detected by the temperature detection module 70 is less than 25 degrees, the control module 30 controls to establish wireless communication with the charging base 200 through the coil 10. After establishing wireless communication with the charging base 200 through the coil 10, the charging base 200 will default to the wireless headset charging box 100 being within the wireless charging range, and the charging base 200 will start to radiate electrical energy, thereby resuming the wireless charging process.

[0066] Therefore, during the charging process of the wireless headset charging box 100, it is possible to ensure that the temperature of the metal part 20 is not too high, and at the same time, the wireless headset charging box 100 can be charged as quickly as possible. In the embodiment of the present application, the wireless headset 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 shaft 63, to avoid the safety of the wireless headset charging box 100 being affected by excessive temperature. In particular, when the user brings the side wall connected to the metal shaft 63 close to the charging base 200, the embodiment of the present application can effectively avoid the safety risks caused by the excessive temperature of the metal shaft 63, while ensuring that the user can place the wireless headset charging box 100 at multiple angles, thereby facilitating the user's use.

[0067] It can be understood that if the second preset temperature is set to be equal to the first preset temperature, for example, both are 40 degrees, then when the temperature of the metal part 20 is greater than or equal to the first preset temperature, the wireless charging is controlled to be interrupted, and when the temperature of the metal part 20 is less than the first preset temperature, the wireless charging is controlled to be restored. In practical applications, the control module 30 needs to perform control operations frequently, and the charging base 200 also needs to act frequently, which will also cause the wireless charging process of the wireless headset charging box 100 to be frequently interrupted and restored, thereby causing the wireless charging process of the wireless headset charging box 100 to be unstable. Therefore, in order to improve the wireless charging stability of the wireless headset 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 respectively. 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, and so on.

[0068] Therefore, during the charging process of the wireless earphone charging box 100, it can ensure that the temperature of the metal part 20 is not too high, and the wireless earphone charging box 100 can be charged as quickly as possible, while avoiding frequent interruptions and resumptions of the wireless charging process of the wireless earphone charging box 100, thereby improving the wireless charging stability of the wireless earphone charging box 100.

[0069] In some embodiments, reference Figure 6 , Figure 6 This is a second structural schematic diagram of the wireless headset charging box 100 provided in an embodiment of the present application.

[0070] The wireless headset charging box 100 also includes a communication module 80. The communication module 80 is used to provide a communication signal. The coil 10 is electrically connected to the communication module 80. The coil 10 is used to transmit the communication signal to establish wireless communication with the charging base 200, or interrupt the transmission of the communication signal to disconnect the wireless communication with the charging base 200.

[0071] For example, when the temperature of the metal part 20 is too high, for example, when the temperature of the metal part 20 is greater than or equal to the first preset temperature, the control module 30 can control the coil 10 to interrupt the transmission of the communication signal, so as to disconnect the wireless communication with the charging base 200 through the coil 10. Thus, the charging base 200 can be indirectly controlled to stop radiating electric energy to interrupt wireless charging.

[0072] In addition, the control module 30 can also control the transmission of the communication signal through the coil 10 when the temperature of the metal part 20 is low, for example, when the temperature of the metal part 20 is lower than the second preset temperature, so as to establish wireless communication with the charging base 200 through the coil 10. Thus, the charging base 200 can be indirectly controlled to start radiating electric energy to resume wireless charging.

[0073] In some embodiments, reference Figure 7 , Figure 7 This is a third structural schematic diagram of the wireless earphone charging box 100 provided in an embodiment of the present application.

[0074] Among them, the communication module 80 includes a signal modulation circuit 81 and a communication control circuit 82. The signal modulation circuit 81 is used to provide 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 respectively. 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 transmitted to the charging base 200 through the coil 10 to realize wireless communication with the charging base 200.

[0075] 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 with the coil 10, so that the coil 10 transmits the communication signal or interrupts the transmission of the communication signal, thereby establishing wireless communication with the charging base 200 through the coil 10 or disconnecting wireless communication with the charging base 200.

[0076] For example, when it is necessary to establish wireless communication with the charging base 200, the control module 30 can control the communication control circuit 82 to be connected to the coil 10, so that the coil 10 transmits the communication signal to the charging base 200, such as responding to the handshake signal broadcast by the charging base 200 to establish wireless communication with the charging base 200.

[0077] 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 stops transmitting the communication signal, so that the communication signal cannot be transmitted to the charging base 200, and the wireless communication with the charging base 200 is disconnected.

[0078] In some embodiments, reference Figure 8 , Figure 8 This is a fourth structural schematic diagram of the wireless earphone charging box 100 provided in an embodiment of the present application.

[0079] The coil 10 may be connected to the receiving circuit 40 via the capacitor C1 , and connected to the communication control circuit 82 via the capacitors C2 and C3 . The communication control circuit 82 may be connected to the signal modulation circuit 81 via MOS (Metal Oxide Semiconductor) tubes M1 and M2 .

[0080] The capacitor C1 can play a filtering role to filter out interference signals in the electric energy received by the coil 10. The capacitors C2 and C3 can also play a filtering role to prevent the electric energy received by the coil 10 from being transmitted to the communication control circuit 82 and the signal modulation circuit 81.

[0081] The receiving circuit 40 includes diodes D1, D2, D3, D4 and capacitor C4. The diode D1, capacitor C4 and diode D3 are sequentially connected in series and connected to one end of the coil 10; the diode D2, capacitor C4 and diode D4 are sequentially connected in series and connected to the other end of the coil 10. The battery 50 can be connected in parallel to both ends of the capacitor C4 to charge the battery 50.

[0082] 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.

[0083] The communication control circuit 82 includes a first port P1, a second port P2, and a third port P3. The first port P1 is electrically connected to the signal modulation circuit 81 and the coil 10. For example, the first port P1 can be electrically connected to the signal modulation circuit 81 through MOS tubes M1 and M2, and electrically connected to the coil 10 through capacitors C2 and C3. The second port P2 is grounded. The third port P3 is electrically connected to the control module 30.

[0084] It can be understood that the communication control circuit 82 can be electrically connected to 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 sub-ports P11 and P12, the second port P2 can include sub-ports P21 and P22, and the third port P3 can include sub-ports P31 and P32.

[0085] Among them, the subport P11 is electrically connected to the signal modulation circuit 81 through the MOS tube M1, and is electrically connected to one end of the coil 10 through the capacitor C2. The subport P12 is electrically connected to the signal modulation circuit 81 through the MOS tube M2, and is electrically connected to the other end of the coil 10 through the capacitor C3. The subports P21 and P22 are both grounded. The subports P31 and P32 are both electrically connected to the control module 30.

[0086] In addition, the subport P31 can also be connected to the power source V1 through the resistor R1, and the subport P32 can also be connected to the power source V2 through the resistor R2. The resistance values ​​of the resistors R1 and R2 can be set according to actual needs. The power sources V1 and V2 can both be 5V (volt) power sources, for example.

[0087] The control module 30 may send a control signal to the communication control circuit 82, for example, send a control signal to the communication control circuit 82 through the third port P3, so as to control the first port P1 and the second port P2 to be connected or disconnected. For example, the subport P11 and the subport P21 are controlled to be connected or disconnected, and the subport P12 and the subport P22 are controlled to be connected or disconnected.

[0088] 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 both grounded, when the first port P1 is connected to the second port P2, the signal of the first port P1 will directly return to the ground. At this time, the coil 10 is equivalent to a short circuit for the communication signal, that is, the coil 10 and the communication control circuit 82 are not connected. At this time, it can also be considered that the coil 10 is disconnected from the communication control circuit 82. Therefore, the communication signal provided by the signal modulation circuit 81 will directly return to the ground through the first port P1, and will not be transmitted outward through the coil 10. When the first port P1 is disconnected from the second port P2, the signal of the first port P1 will not return to the ground. At this time, the coil 10 and the communication control circuit 82 are connected, so 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.

[0089] Therefore, in the embodiment of the present application, when it is necessary to disconnect the wireless communication with the charging base 200, the control module 30 can send a control signal to the communication control circuit 82 to connect the first port P1 with the second port P2, that is, to connect the subport P11 with the subport P21, and to connect the subport P12 with the subport P22, 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, so the wireless communication with the charging base 200 can be disconnected.

[0090] When it is necessary to establish or maintain wireless communication with the charging base 200, the control module 30 can send a control signal to the communication control circuit 82 to disconnect the first port P1 from the second port P2, that is, to disconnect the subport P11 from the subport P21, and to disconnect the subport P12 from the subport P22. At this time, the communication signal provided by the signal modulation circuit 81 can be transmitted to the outside through the coil 10, so that wireless communication with the charging base 200 can be established or maintained.

[0091] 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 the first port P1, the second port P2, and the third port P3. For example, the transistor T1 is electrically connected to the sub-port P11, the sub-port P21, and the sub-port P31, and the transistor T2 is electrically connected to the sub-port P12, the sub-port P22, and the sub-port P32.

[0092] The control module 30 is used to control the transistor to conduct the first port P1 and the second port P2, or to disconnect the first port P1 and the second port P2. For example, the control module 30 can be used to control the subport P11 and the subport P21 to conduct, and control the subport P12 and the subport P22 to conduct, so as to disconnect the wireless communication with the charging base 200. Alternatively, the control module 30 can be used to control the subport P11 and the subport P21 to disconnect, and control the subport P12 and the subport P22 to disconnect, so as to establish or maintain the wireless communication with the charging base 200.

[0093] In some embodiments, reference Fig. 9 , Fig. 9 This is a fifth structural schematic diagram of the wireless headset charging box 100 provided in an embodiment of the present application.

[0094] The communication control circuit 82 includes an analog switch, for example, analog switches K1 and K2. The analog switches K1 and K2 are used to turn on or off the signal modulation circuit 81 and the coil 10. The analog switches K1 and K2 can be implemented by, for example, MOS tubes, TFTs (Thin Film Transistors), etc. The analog switch K1 is electrically connected to the signal modulation circuit 81 through the MOS tube M1, connected to one end of the coil 10 through the capacitor C2, and electrically connected to the control module 30. The analog switch K2 is electrically connected to the signal modulation circuit 81 through the MOS tube M2, connected to the other end of the coil 10 through the capacitor C3, and electrically connected to the control module 30.

[0095] The control module 30 is used to control the analog switch to be turned on or off, for example, to control the analog switches K1 and K2 to be turned on at the same time, or to control the analog switches K1 and K2 to be turned off at the same time, so that the signal modulation circuit 81 and the coil 10 are turned on or off.

[0096] For example, when it is necessary to disconnect 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 disconnect the analog switches K1 and K2 at the same time, and the electrical connection between the signal modulation circuit 81 and the coil 10 is disconnected. Therefore, the communication signal provided by the signal modulation circuit 81 will not be transmitted to the outside through the coil 10, so that the wireless communication with the charging base 200 can be disconnected.

[0097] When it is necessary to establish or maintain wireless communication with the charging base 200, the control module 30 can send a control signal to the analog switches K1 and K2 to turn on the analog switches K1 and K2 at the same time, and the signal modulation circuit 81 is electrically connected to the coil 10. At this time, the communication signal provided by the signal modulation circuit 81 can be transmitted to the outside through the coil 10, so that wireless communication with the charging base 200 can be established or maintained.

[0098] The above is a detailed introduction to the charging box and wireless charging system provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application. At the same time, for those skilled in the art, according to the ideas of the present application, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A wireless headset charging box, characterized in that: include: A coil, used for wireless communication between the wireless headset charging box and the 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, arranged at a distance from the coil, and 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 temperature detection module, the temperature detection module is used to detect the temperature of the metal part; A control module is electrically connected to the coil and the temperature detection module, and the control module is used to: When the temperature detected by the temperature detection module is greater than or equal to a first preset temperature, controlling the coil to disconnect the wireless communication between the wireless headset charging box and the charging base; and / or When the temperature detected by the temperature detection module is lower than a second preset temperature, controlling to establish wireless communication between the wireless headset charging box and the charging base through the coil; Wherein, the second preset temperature is less than or equal to the first preset temperature.

2. The wireless headset charging box according to claim 1, characterized in that: Also includes: A charging box body, the coil is arranged in the charging box body, and the control module is arranged in the charging box body; The charging box cover is connected to the charging box body through a metal shaft, and the metal part includes the metal shaft.

3. The wireless headset charging box according to claim 2, characterized in that: The charging box body includes: a first side wall, the metal shaft being connected to the first side wall; The second side wall, the coil is arranged on the second side wall.

4. The wireless headset charging box according to claim 2, characterized in that: The charging box body includes: The first side wall, the metal shaft is connected to the first side wall, and the coil is arranged on the first side wall.

5. The wireless headset charging box according to claim 2, characterized in that: The charging box body includes: a first side wall, the metal shaft being connected to the first side wall; a second side wall; Wherein, the coil is arranged on the first side wall and the second side wall.

6. The wireless headset charging box according to claim 2, characterized in that: The charging box body is provided with an accommodating space, and the accommodating space is used to accommodate wireless headphones.

7. The wireless headset charging box according to any one of claims 1 to 6, characterized in that: Also includes: A communication module, used for providing communication signals; The coil is electrically connected to the communication module, and the coil is used to transmit the communication signal to enable the wireless headset charging box to establish wireless communication with the charging base, or interrupt the transmission of the communication signal to disconnect the wireless communication between the wireless headset charging box and the charging base.

8. The wireless headset charging box according to claim 7, characterized in that: The communication module comprises: A signal modulation circuit, used for providing the communication signal; A communication control circuit, electrically connected to the signal modulation circuit, the coil, and the control module; The control module is used to control the communication control circuit and the coil to be connected or disconnected, so that the wireless headset charging box establishes wireless communication with the charging base or disconnects wireless communication with the charging base.

9. The wireless headset charging box according to claim 8, characterized in that: The communication control circuit comprises a first port, a second port and a third port, the first port is electrically connected to the signal modulation circuit and the coil, the second port is grounded, and the third port is electrically connected to the control module; The control module is used to control the first port and the second port to be connected or disconnected.

10. The wireless headset charging box according to claim 9, characterized in that: The communication control circuit includes a transistor, and the transistor is electrically connected to the first port, the second port, and the third port; The control module is used to control the transistor to connect the first port and the second port, or disconnect the first port and the second port.

11. The wireless headset charging box according to claim 8, characterized in that: The communication control circuit includes an analog switch, and the analog switch is used to connect or disconnect the signal modulation circuit and the coil; The control module is used to control the analog switch to be turned on or off.

12. A charging box, characterized in that: include: A coil, used for the charging box to communicate wirelessly with the 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, arranged at a distance from the coil, and 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 temperature detection module, the temperature detection module is used to detect the temperature of the metal part; A control module is electrically connected to the coil and the temperature detection module, and the control module is used to: When the temperature detected by the temperature detection module is greater than or equal to a first preset temperature, controlling the coil to disconnect the wireless communication between the charging box and the charging base; and / or When the temperature detected by the temperature detection module is lower than a second preset temperature, controlling to establish wireless communication between the charging box and the charging base through the coil; Wherein, the second preset temperature is less than or equal to the first preset temperature.

13. The charging box according to claim 12, characterized in that: Also includes: A charging box body, the coil is arranged in the charging box body, and the control module is arranged in the charging box body; The charging box cover is connected to the charging box body through a metal shaft, and the metal part includes the metal shaft.

14. The charging box according to claim 13, characterized in that: The charging box body includes: a first side wall, the metal shaft being connected to the first side wall; The second side wall, the coil is arranged on the second side wall.

15. The charging box according to claim 13, characterized in that: The charging box body includes: The first side wall, the metal shaft is connected to the first side wall, and the coil is arranged on the first side wall.

16. The charging box according to claim 13, characterized in that: The charging box body includes: a first side wall, the metal shaft being connected to the first side wall; a second side wall; Wherein, the coil is arranged on the first side wall and the second side wall.

17. A wireless charging system, characterized in that: include: a charging base for radiating electrical energy wirelessly; A wireless headset charging box, wherein the wireless headset charging box is the wireless headset charging box according to any one of claims 1 to 11.

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