Vehicle-mounted wireless charging controller

Abstract

The present invention relates to a vehicle-mounted wireless charging controller for wireless charging of a device to be charged. The vehicle-mounted wireless charging controller comprises a shell forsupporting the device to be charged, a coil disposed on a side, away from the device to be charged, of the shell for forming thermal contact with the side of the shell, and a temperature detection module for detecting a first temperature of the side, tightly close to the coil, of the shell; and the vehicle-mounted wireless charging controller is characterized by further comprising a main calculation module which is used for calculating the second temperature of one side, close to the device to be charged, of the shell based on the first temperature measurement from the temperature detection module, a physical parameter associated with the shell, and a heat conduction power value associated with the coil.

Description

technical field [0001] The present invention relates to a vehicle wireless charging system, and more particularly to a wireless charging controller used in the vehicle wireless charging system. Background technique [0002] Many vehicle-mounted wireless charging systems currently on the market have a wireless charging controller (WLC, or wireless charger), which is used to wirelessly charge mobile terminal wireless charging devices. Usually, the wireless charging controller is designed in the form of a flat shell with a certain thickness, and a printed circuit board (PCB board) is accommodated in the shell. One side of the casing is provided with a coil, and the other side of the casing is used to place the mobile terminal wireless charging device. The wireless charging controller identifies relevant information such as the model or battery capacity of the charging device placed on hold, and turns on the charging mode in response to a user's instruction. During the chargin...

AI Technical Summary

Problems solved by technology

Therefore, the internal temperature threshold determined based on the constant value of the internal and external temperature difference is not accurate. The most serious consequence of this temperature control method is that it may lead to safety accidents

For example, as mentioned above, if the temperature difference between the inside and outside is set to be 10 degrees, the existing wireless charging controller sets the safe temperature threshold of the external temperature to 60 degrees, and the safe temperature threshold of the internal temperature to 70 degrees. Under certain conditions, the actual temperature difference between inside and outside may be 3 degrees. When the internal temperature exceeds 63 degrees but does not reach the internal safe temperature threshold of 70 degrees, the actual external temperature has exceeded the safe temperature threshold of 60 degrees. At this time, the existing wireless charging controller There is no protective measure activated, so there is a great potential safety hazard, which can easily cause personal injury

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