Self-powered thermal probe for cooking

A self-powered thermal probe for cooking, comprising a fixing cover, a mounting shell, a probe tube, a first heat conducting block, a temperature-difference power generation piece, a second heat conducting block, a PCB, a temperature sensor and a battery, wherein the mounting shell has an end connected to the fixing cover and an end connected to the probe tube;

• the first heat conducting block, the temperature-difference power generation piece and the second heat conducting block are all arranged in the mounting shell, and the PCB is received in the probe tube and partially extends into the mounting shell;
• the first heat conducting block and the second heat conducting block are respectively arranged on a hot surface and a cold surface of the temperature-difference power generation piece, the PCB located in the mounting shell is arranged between the temperature-difference power generation piece and the second heat conducting block, and the temperature-difference power generation piece, the temperature sensor and the battery are all electrically connected to the PCB,
• further comprising fixing elastic pieces for fixing the PCB, wherein the number of the fixing elastic pieces is two, and the two fixing elastic pieces are symmetrically arranged on two sides of the PCB,
• each said fixing elastic piece comprises a fixing end, an inclined bent end and an abutting end which are formed integrally, and the fixing end is connected to the abutting end through the inclined bent end and is connected to the PCB.