Integrated temperature monitoring system

Abstract

The present application discloses an integrated temperature monitoring system, which includes a multi-point temperature detection module, the multi-point temperature detection module includes a radiator and a plurality of temperature detection components arranged inside the radiator, and the radiator is used for Attached to the IGBT module, the temperature detection component contacts the surface of the IGBT module for detecting the temperature data of the IGBT module; the data acquisition and processing module is electrically connected to the multi-point temperature detection module for Obtain the temperature data detected by each temperature detection component on the multi-point temperature detection module, and analyze the temperature data through a preset data analysis strategy to determine the temperature value of the IGBT module. Through the above system, the temperature data on the IGBT module can be detected at multiple points, and the obtained temperature data can be corrected to ensure the accuracy of the data and achieve the effect of accurately monitoring the temperature of the IGBT module.

Description

technical field [0001] The invention relates to the technical field of semiconductor device detection, in particular to an integrated temperature monitoring system. Background technique [0002] IGBT (Insulated Gate Bipolar Transistor, Insulated Gate Bipolar Transistor) is a semiconductor power device, which realizes the change of AC voltage and frequency by controlling the switching of the circuit, and is widely used. The IGBT module is a modular semiconductor product that is packaged by IGBT (insulated gate bipolar transistor chip) and FWD (freewheeling diode chip) through a specific circuit bridge. The packaged IGBT module is directly applied to inverters, UPS uninterrupted In terms of power supply and other equipment, IGBT modules are widely used in fields such as rail transit, smart grid, aerospace, electric vehicles and new energy equipment. [0003] During the working process of the IGBT module, a long time of high current and high voltage switching will be generated...

AI Technical Summary

Problems solved by technology

[0004] The traditional temperature monitoring method uses a thermometer (such as a thermocouple) to detect the temperature of the IGBT module. However, the thermocouple is generally mounted at a certain position on the radiator, and there is a certain distance from the IGBT module, so it cannot be real-time and accurate. Monitor the specific temperature distribution of the module, and because the IGBT module will be deformed during the heating and cooling process, resulting in a large temperature error due to the separation of the module backplane and the radiator, the detection accuracy of the traditional thermometer patch is not high, resulting in Unable to accurately monitor the temperature of the IGBT module

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