If the vivo mobile phone is used, wireless charging is also known as inductive charging or non-contact inductive charging, based on the principle of electromagnetic induction, the device that needs to be charged can be charged by contacting the wireless charger after being energized.
Wireless charging methods include electromagnetic induction, magnetic resonance, electric field coupling and radio wave transmission, etc. Wireless charging of mobile phones mostly uses the principle of electromagnetic induction. Electromagnetic induction wireless charging, when the current of the power supply through the coil (wireless charger's power supply coil) will generate a magnetic field, other unenergized coil (mobile phone side of the electric coil) close to the magnetic field will be generatedElectricity, to charge the phone. As shown below.
Wireless charging methods include electromagnetic induction, magnetic resonance, electric field coupling and radio wave transmission, etc. Wireless charging of mobile phones mostly uses the principle of electromagnetic induction. Electromagnetic induction wireless charging, when the current of the power supply through the coil (wireless charger's power supply coil) will generate a magnetic field, other unenergized coil (mobile phone side of the electric coil) close to the magnetic field will generate current, charging the mobile phone.
Mobile phone wireless charging technology is completely without the use of wires, the use of magnets for mobile phone charging technology. Mobile phone wireless charging technology, derived from wireless powerTransmission technology, the use of magnetic resonance in the air between the charger and the phone to transfer charges, coil and capacitor in the charger and the phone form a resonance, to achieve efficient transmission of electric energy technology.
1, wireless charging technology is completely without the use of wires, the use of magnets for equipment charging technology. Wireless charging technology, derived from wireless power transmission technology, uses magnetic resonance to transfer charge in the air between the charger and the device, and the coil and capacitor form a resonance between the charger and the device to achieve high energy efficiencyThe technology of transmission. 2, wireless charging is also known as inductive charging, non-contact inductive charging, from wireless power transmission technology, is the use of near-field induction, that is, inductive coupling, by the power supply device (charger) to transmit energy to the power device, the device uses the received energy to charge the battery, and at the same time for its own operation. 3, wireless charging technology is a special way of power supply, it does not need the power line, relying on the propagation of electromagnetic waves, the electromagnetic wave energy into electricity, and finally achieve wireless charging. Low-power wireless charging often uses electromagnetic induction, such as charging mobile phonesThe resistance increases, thereby increasing its temperature, so it is necessary to use high heat absorption and high heat dissipation materials as the outer packaging, in addition, the corresponding resistance should be reduced, so as to fundamentally reduce the heating situation.
In addition, the heat dissipation design of the phone will also affect its temperature during wireless charging. If the heat dissipation system of the phone is not efficient enough, or the heat dissipation port is blocked, then the phone is more likely to get hot during the charging process. At the same time, the use of wireless charging for a long time or charging at high power will also exacerbate the heat of the phone. Finally, the use environment is also a factor that cannot be ignored.
is generally adoptedThe way of metal heat dissipation can reduce the heat transmission to the mobile phone, thus affecting the charging power of the mobile phone, which is bound to increase the metal block on the circuit board or coil, which is similar to the notebook CPU plus copper tube heat dissipation. Or increase the active fan heat dissipation, and use the fan to cool the motherboard and coil, which can achieve the delay power reduction time.
It is recommended that you use the standard charger to charge the phone. Although other third-party chargers can also charge the phone, they may cause problems such as heating due to differences in charging specifications or charging protocols.
Compared with the old model 10000mAhAlthough the old and new models remain similar in appearance and interface, the color changes from black to white, the model WPB15ZM does not continue the old PLM11ZM, suggesting that there may be a technical upgrade. However, the rumors about the 20W wireless flash charge may be speculated to be untrue. The power limit of the wireless charging bank is the heat dissipation problem, high power may lead to overheating, posing a threat to the safety of the battery cell.
After all, it is necessary to equip the wireless charging coil inside the mobile phone, which will generate a certain amount of heat when charging, and some mobile phones castrate the heat dissipation function of the mobile phone for wireless charging function. Now cell phone batteries are lithium-ion batteries,The safety level is very high, and the service life is also very long, so there is no need to worry about safety.