Adjustable light therapy care electric toothbrush

An adjustable light therapy care electric toothbrush, comprising a toothbrush head (1) and a toothbrush handle (2), the toothbrush head (1) being detachably connected to the toothbrush handle (2), wherein a second circuit board assembly (15) is built in the toothbrush head (1), an NFC chip (152) and a memory (153) are encapsulated on the second circuit board assembly (15), a signal receiving antenna is arranged in the toothbrush head (1), the NFC chip (152) is in signal communication with the signal receiving antenna, a first circuit board assembly (29) is built in the toothbrush handle (2), a card reading chip (293) is encapsulated on the first circuit board assembly (29), the card reading chip (293) is in wireless signal communication with the NFC chip (152), functional loads are arranged in the toothbrush head (1) and electrically connected to the second circuit board assembly (15), and the second circuit board assembly (15) electrically communicates with the first circuit board assembly (29) through an electrical connection mechanism;

• wherein the electrical connection mechanism comprises a power receiving coil (18) arranged in the toothbrush head (1) and a power transmitting coil (22) arranged on the toothbrush handle (2), the power receiving coil (18) is wirelessly and electrically connected to the power transmitting coil (22), and the signal receiving antenna is the power receiving coil (18).