New energy automobile irradiation cable thermal detection method

The invention discloses a thermal detection method for an irradiation cable of a new energy automobile. The thermal detection method comprises the following steps: (1) a cable to be detected is divided into a plurality of small sections with the same length; (2) the cable divided in the step (1) is loaded into a detection device, the cable is pushed to make contact with a metal contact, a box door is closed, and then a power source is turned on; and (3) a heating pipe is used for heating the interior of the box body, when the temperature rises to a certain value, the high-temperature environment is simulated, the outer sheath of the cable is electrified, and current flows to an universal meter through a metal sheet and a metal rod, a control chip records the temperature in the box body when the universal meter deflects, and the collected temperature values are sorted to obtain the highest temperature which can be borne by the cable to be detected. The method is simple to operate, can detect a plurality of cables at the same time, enables detected data to be more accurate and reliable, can detect cables with different diameters, and is high in practicability.