Wireless temperature measuring device for electrical connector

The invention discloses a wireless temperature measuring device for an electrical connector. The wireless temperature measuring device comprises a shell, an RFID temperature measuring tag and a threaded part, the shell comprises a top plate and a side plate which is arranged along the edge of the top plate and extends downwards, the top plate is provided with a through hole for a bolt of the electrical connector to penetrate through, and a groove capable of covering a nut of the electrical connector is formed between the top plate and the side plate; a window penetrating through the side plate is formed in one side of the groove, and the RFID temperature measurement tag is arranged at the window and can be close to or away from the nut in the radial direction; the threaded piece can be in threaded connection with a bolt of the electrical connector so as to lock the shell on the electrical connector. According to the wireless temperature measuring device for the electrical connector, power failure is not neede