Temperature controller test device and method for calibration test and aging test of temperature controller

Abstract

The invention discloses a temperature controller test device and a method for a calibration test and an aging test of a temperature controller. The temperature controller test device comprises a shell box body, a ring air bath constant temperature device disposed in the shell box body, a fast cooling upper cover device provided with an air door and arranged at the top of the cylindrical ring air bath constant temperature device and a single chip microcomputer control system. The ring air bath constant temperature device is a cylindrical ring cavity body disposed in the box body, and all parts are distributed on the periphery of the circle center in an axial symmetry mode. The single chip microcomputer control system controls the air door to be opened or closed under different work conditions. The temperature controller test device is compact in structure, small in size, attractive in appearance, simple in operation, easy in mounting and demounting of detected parts, convenient to use, good in safety performance, wide in test temperature scope, even in temperature field spatial distribution, high in temperature control accuracy, capable of being used for a dynamic test, the calibration test and the aging test in a temperature rising and dropping mode, accurate in test, fast in speed, high in efficiency and the like.

Description

technical field [0001] The invention relates to the field of control testing, in particular to a thermostat testing device and methods for correcting and testing the thermostat and aging testing. Background technique [0002] Thermostats are widely used in electric heating appliances, water dispensers, electric kettles, instant kettles, rice cookers, disinfection cabinets, refrigerators, dishwashers, microwave ovens, coffee pots, washing machines, ovens, heaters and other household appliances. At present, most of the thermostat test equipment adopts a square cavity structure, and the disadvantages of adopting this scheme are: the temperature uniformity in the cavity is not good, the spatial distribution of the temperature field is inconsistent, and multiple thermostats are placed in different positions. Inconsistencies lead to relatively large errors in the test; in addition, rapid temperature rise and fall is required during the aging life test, and the airtight square cavi...

AI Technical Summary

Problems solved by technology

At present, most of the thermostat test equipment adopts a square cavity structure, and the disadvantages of adopting this scheme are: the temperature uniformity in the cavity is not good, the spatial distribution of the temperature field is inconsistent, and the temperature of each point of multiple thermostats is placed in different positions. Inconsistency leads to a relatively large error in the test; in addition, rapid temperature rise and fall is required during the aging life test, and the airtight square cavity structure cannot achieve rapid temperature rise and fall, and the aging test of the thermostat’s life cannot be performed, and additional equipment is required to do it. Aging test

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