Wireless charging structure for preventing wireless charging noise

Abstract

The utility model belongs to the technical field of wireless charging, in particular to a wireless charging structure capable of preventing wireless charging noise, which comprises a capacitance pen and a tablet computer, a wireless charging component is arranged in the tablet computer, and a double-switch detection component is arranged between the tablet computer and the capacitance pen. The double-switch detection assembly is used for controlling wireless charging between the capacitance pen and the tablet computer. According to the utility model, through the dual-switch detection assembly, only when the two Hall magnets in the capacitance pen are close to the two Hall sensors and each Hall sensor senses one Hall magnet, the wireless charging assembly in the tablet computer can be turned on; therefore, noise caused by abnormal work of the wireless charging circuit due to false triggering of the Hall element by the fixed magnet during translation of the capacitance pen is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of wireless charging, and in particular to a wireless charging structure for preventing wireless charging noise. Background Art

[0002] Wireless charging for tablet capacitive styluses primarily utilizes magnetic charging: this charging method utilizes the attraction of magnets and the principles of electromagnetic induction. Magnets are built into the edges or specific areas of the tablet, and the capacitive stylus also has corresponding magnetic components. When the capacitive stylus is brought close to the tablet's charging area, the magnets attract the two together. Simultaneously, electromagnetic induction generates an electric current in the magnetic field created by the charging area, charging the stylus's battery. This convenient feature allows the user to simply place the stylus close to a designated area on the tablet for automatic attachment and charging to begin. No charging cable is required, making it convenient for daily use and portability. The charging process is relatively stable, and the attraction ensures a secure connection, minimizing charging interruptions caused by poor contact. Furthermore, the stylus's design is minimally impacted, requiring no additional charging port, preserving its integrity and aesthetics.

[0003] In the current tablet computer with wireless charging capacitive pen design, the capacitive pen is fixed by two magnets. In addition, the wireless charging circuit is turned on when the magnet is detected by the Hall switch. The current capacitive pen detection is detected by a Hall switch. There are two magnets responsible for fixing the capacitive pen. When the capacitive pen moves horizontally, one of the fixed magnets will move horizontally to the Hall switch, mistakenly triggering the Hall switch and turning on the wireless charging circuit. The other fixed magnet will move horizontally to the wireless charging coil. The coil and the magnet form electromagnetic induction. The vibration generated by the operation of the conductor in the magnetic field causes abnormally low noise. Summary of the Invention

[0004] In order to solve the above problems, the utility model proposes a wireless charging structure that prevents wireless charging noise, so as to more accurately solve the above-mentioned problem that when the capacitive pen is translated, one of the fixed magnets will translate to the Hall switch, mistakenly triggering the Hall switch and thus opening the wireless charging circuit, and the other fixed magnet will translate to the wireless charging coil. The coil and the magnet form electromagnetic induction, and the vibration generated by the operation of the conductor in the magnetic field causes abnormally low noise.

[0005] The utility model is achieved through the following technical solutions:

[0006] The utility model provides a wireless charging structure for preventing wireless charging noise, comprising a capacitive stylus and a tablet computer. The tablet computer has a built-in wireless charging component. A dual switch detection component is provided between the tablet computer and the capacitive stylus, and the dual switch detection component is used to control the wireless charging between the capacitive stylus and the tablet computer. An adsorption fixing component is provided between the capacitive stylus and the tablet computer, and the adsorption fixing component is used to fix the capacitive stylus for wireless charging.

[0007] Furthermore, the dual switch detection component includes two Hall magnets and two Hall sensors, the Hall magnets and the Hall sensors correspond one to one, the Hall magnets are fixed in the capacitive stylus, the two Hall sensors are fixed in the tablet computer, and the Hall sensors are connected to the wireless charging component.

[0008] Furthermore, the adsorption and fixing assembly includes two fixed magnets and two magnetic fixing parts. The two fixed magnets are fixed in the capacitive stylus, and the two magnetic fixing parts are installed inside the tablet computer.

[0009] Furthermore, the two Hall magnets are located at both ends of the capacitive pen, the two fixed magnets are located between the two Hall magnets, the distance between the center lines of the two Hall sensors is the same as the distance between the center lines of the two Hall magnets, and the distance between the center lines of the two fixed magnets is the same as the distance between the center lines of the two magnetic fixed parts.

[0010] Furthermore, a wireless charging identification frame is provided on one side of the tablet computer.

[0011] Furthermore, the wireless charging identification frame is located between two magnetic fixing components.

[0012] Furthermore, the two Hall sensors are symmetrical about the center line of the wireless charging identification frame, and the two magnetic fixing components are symmetrical about the center line of the wireless charging identification frame.

[0013] Furthermore, the wireless charging component in the tablet computer is located on one side of the wireless charging identification frame. When placing the capacitive stylus, the capacitive stylus is placed close to the wireless charging identification frame area.

[0014] Furthermore, the capacitive stylus has a cylindrical structure.

[0015] Furthermore, the length of the capacitive stylus is shorter than the length of the tablet computer.

[0016] Beneficial effects of the utility model:

[0017] The utility model proposes a wireless charging structure that prevents wireless charging noise. By setting a dual switch detection component, the wireless charging component in the tablet computer can be turned on to wirelessly charge the capacitive stylus only when the two Hall magnets in the capacitive stylus are close to the two Hall sensors and each Hall sensor senses a Hall magnet. As long as any Hall sensor cannot detect the Hall magnet, the tablet computer will turn off the wireless charging, thereby avoiding the noise caused by the fixed magnet mistakenly triggering the Hall when the capacitive stylus is translated, causing abnormal operation of the wireless charging circuit.

[0018] A wireless charging structure that prevents wireless charging noise. By providing an adsorption and fixing component, two fixed magnets in a capacitive pen correspond one-to-one with a magnetic fixing component in a tablet computer and are adsorbed and fixed to each other, so that the capacitive pen is fixed to one side of the tablet computer. When the two fixed magnets correspond one-to-one with the two magnetic fixing components, the Hall magnet and the Hall sensor are opposite. In this process, the fixed magnet and the magnetic fixing component not only play a fixing role, but also play a certain positioning role, which facilitates the Hall sensor to sense the Hall magnet. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 3 for Figure 2 A schematic diagram of the structure enlarged in the middle;

[0022] Figure 4 This is a structural diagram of the wireless charging identification frame of the present utility model.

[0023] The figure numbers are as follows: 1. Capacitive pen; 2. Tablet computer; 3. Double switch detection component; 31. Hall magnet; 32. Hall sensor; 4. Adsorption and fixing component; 41. Fixing magnet; 42. Two magnetic fixing parts; 5. Wireless charging identification frame. DETAILED DESCRIPTION

[0024] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention will be further described below with reference to the accompanying drawings.

[0025] Please refer to Figure 1-Figure 4The present invention proposes a wireless charging structure that prevents wireless charging noise, including a capacitive stylus 1 and a tablet computer 2. The capacitive stylus 1 is a cylindrical structure. The length of the capacitive stylus 1 is shorter than that of the tablet computer 2. The tablet computer 2 has a built-in wireless charging component. A dual switch detection component 3 is provided between the tablet computer 2 and the capacitive stylus 1. The dual switch detection component 3 is used to control the wireless charging between the capacitive stylus 1 and the tablet computer 2. An adsorption fixing component 4 is provided between the capacitive stylus 1 and the tablet computer 2. The adsorption fixing component 4 is used to fix the wirelessly charged capacitive stylus 1. The dual switch detection component 3 includes two Hall magnets 31 and two Hall sensors 32. The Hall magnets 31 correspond to the Hall sensors 32 one-to-one. The Hall magnet 31 is fixed in the capacitive stylus 1, and the two Hall sensors 32 are fixed in the tablet computer 2. The Hall sensor 32 is connected to the wireless charging component. The dual switch detection component 3 includes two Hall magnets 31 and two Hall sensors 32, which are in different positions. When the wireless charging component needs to be used to charge the capacitive pen 1, the capacitive pen 1 is fixed to one side of the tablet computer 2 through the adsorption fixing component 4. Only when the two Hall magnets 31 in the capacitive pen 1 are close to the two Hall sensors 32 and each Hall sensor 32 senses a Hall magnet 31, the wireless charging component in the tablet computer 2 can be turned on to wirelessly charge the capacitive pen 1. As long as any Hall sensor 32 cannot detect the Hall magnet 31, the tablet will turn off the wireless charging, thereby avoiding the noise caused by the fixed magnet 41 mistakenly triggering the Hall when the capacitive pen 1 moves horizontally, resulting in abnormal operation of the wireless charging circuit.

[0026] like Figure 2 and Figure 3 As shown, the adsorption and fixing assembly 4 includes two fixed magnets 41 and two magnetic fixing parts 42. The two fixed magnets 41 are fixed in the capacitive stylus 1, and the two magnetic fixing parts 42 are installed in the tablet computer 2. The two Hall magnets 31 are located at both ends of the capacitive stylus 1, and the two fixed magnets 41 are located between the two Hall magnets 31. The distance between the center lines of the two Hall sensors 32 is the same as the distance between the center lines of the two Hall magnets 31. The distance between the center lines of the two fixed magnets 41 is the same as the distance between the center lines of the two magnetic fixing parts 42. When the capacitive stylus 1 needs to be wirelessly charged, the capacitive stylus 1 is first brought close to the tablet computer 2 so that the two fixed magnets 41 in the capacitive stylus 1 correspond one-to-one with the magnetic fixing parts 42 in the tablet computer 2 and are adsorbed and fixed to each other, so that the capacitive stylus 1 is fixed to one side of the tablet computer 2. When the two fixed magnets 41 correspond one-to-one with the two magnetic fixing parts 42, the Hall magnets 31 and the Hall sensor 32 are opposite. In this process, the fixed magnets 41 and the magnetic fixing parts 42 not only play a fixing role, but also play a certain positioning role, which facilitates the Hall sensor 32 to sense the Hall magnet 31.

[0027] like Figure 4As shown, a wireless charging identification frame 5 is provided on one side of the tablet computer 2. The position of the wireless charging identification frame 5 is located between two magnetic fixing parts 42. The two Hall sensors 32 are symmetrical with the center line of the wireless charging identification frame 5. The two magnetic fixing parts 42 are symmetrical with the center line of the wireless charging identification frame 5. The wireless charging component in the tablet computer 2 is located on one side of the wireless charging identification frame 5. When placing the capacitive pen 1, the capacitive pen 1 is placed close to the wireless charging identification frame 5 area. The capacitive pen 1 is fixed to one side of the tablet computer 2 through the one-to-one correspondence between the fixed magnet 41 and the magnetic fixing part 42 and adsorbed and fixed to each other. The capacitive pen 1 is fixed to one side of the tablet computer 2, the Hall magnet 31 is opposite to the Hall sensor 32, the wireless charging component in the tablet computer 2 is turned on, and the capacitive pen 1 is wirelessly charged. At this time, the identification area is facing the capacitive pen 1, which is convenient for charging the capacitive pen 1.

[0028] Working principle: When the capacitive pen 1 needs to be wirelessly charged, first place the capacitive pen 1 close to the tablet computer 2, so that the two fixed magnets 41 in the capacitive pen 1 correspond one-to-one with the magnetic fixing parts 42 in the tablet computer 2 and are adsorbed and fixed to each other, so that the capacitive pen 1 is fixed on one side of the tablet computer 2. When the two fixed magnets 41 and the two magnetic fixing parts 42 correspond one-to-one, the Hall magnet 31 and the Hall sensor 32 are opposite to each other. Only when the two Hall magnets 31 in the capacitive pen 1 are close to the two Hall sensors 32 and each Hall sensor 32 senses a Hall magnet 31, can the wireless charging component in the tablet computer 2 be opened and the capacitive pen 1 can be wirelessly charged.

[0029] Of course, the present invention may have many other implementations. Based on this implementation, other implementations obtained by ordinary technicians in this field without any creative work are all within the scope of protection of the present invention.

Claims

1. A wireless charging structure for preventing wireless charging noise, characterized in that: The invention comprises a capacitive pen and a tablet computer. The tablet computer has a built-in wireless charging component. A dual switch detection component is provided between the tablet computer and the capacitive pen. The dual switch detection component is used to control the wireless charging between the capacitive pen and the tablet computer. An adsorption and fixing component is provided between the capacitive pen and the tablet computer. The adsorption and fixing component is used to fix the wirelessly charged capacitive pen.

2. The wireless charging structure for preventing wireless charging noise according to claim 1, characterized in that: The dual switch detection component includes two Hall magnets and two Hall sensors, the Hall magnets and the Hall sensors correspond one to one, the Hall magnets are fixed in the capacitive stylus, the two Hall sensors are fixed inside the tablet computer, and the Hall sensors are connected to the wireless charging component.

3. The wireless charging structure for preventing wireless charging noise according to claim 2, wherein: The adsorption and fixing assembly includes two fixing magnets and two magnetic fixing parts. The two fixing magnets are fixed in the capacitive stylus, and the two magnetic fixing parts are installed inside the tablet computer.

4. The wireless charging structure for preventing wireless charging noise according to claim 3, wherein: The two Hall magnets are located at both ends of the capacitive pen, the two fixed magnets are located between the two Hall magnets, the distance between the center lines of the two Hall sensors is the same as the distance between the center lines of the two Hall magnets, and the distance between the center lines of the two fixed magnets is the same as the distance between the center lines of the two magnetic fixing parts.

5. The wireless charging structure for preventing wireless charging noise according to claim 4, characterized in that: A wireless charging identification frame is provided on one side of the tablet computer.

6. The wireless charging structure for preventing wireless charging noise according to claim 5, characterized in that: The wireless charging identification frame is located between two magnetic fixing components.

7. The wireless charging structure for preventing wireless charging noise according to claim 5, characterized in that: The two Hall sensors are symmetrical about the center line of the wireless charging identification frame, and the two magnetic fixing components are symmetrical about the center line of the wireless charging identification frame.

8. The wireless charging structure for preventing wireless charging noise according to claim 5, wherein: The wireless charging component in the tablet computer is located on one side of the wireless charging identification frame. When placing the capacitive stylus, place the capacitive stylus close to the wireless charging identification frame area.

9. The wireless charging structure for preventing wireless charging noise according to claim 1, wherein: The capacitive stylus has a cylindrical structure.

10. The wireless charging structure for preventing wireless charging noise according to claim 1, wherein: The length of the capacitive stylus is shorter than that of the tablet computer.

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