High and low temperature compensation mechanism of circuit breaker

The utility model discloses a high and low temperature compensation mechanism of a circuit breaker, which is characterized by comprising a limit lock (1), the limit lock (1) is connected with a limit compensation sheet (2), and the limit compensation distance a between the limit compensation sheet (2) and the limit lock (1) is 0.15-0.55 mm. According to the utility model, the temperature compensation mechanism is designed to compensate the maximum deformation displacement of the thermal release in high and low temperature environments so as to ensure that the relative displacement of the thermal release and the unlocking mechanism is not changed in the high and low temperature environments, and high and low temperature environment test verification is carried out according to a GJB5885-2006 General Specification for Aviation Circuit Breakers. The maximum working environment temperature range of the product can reach-55 DEG C to + 125 DEG C, and the temperature range index of the product is advanced in China a