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Temperature control system of temperature change reliability testing device

A technology of temperature control system and test device, applied in temperature control, control/regulation system, non-electric variable control and other directions, can solve the problems of large temperature influence, poor adjustability, slow response speed, etc., to save space and occupy The effect of space optimization and good temperature control ability

Active Publication Date: 2018-08-24
HOHAI UNIV CHANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, most of the temperature control systems distributed in the market are controlled by analog circuits and relays, which have the disadvantages of cumbersome circuits, poor adjustability, great influence on temperature, slow response speed, noise, etc. The control system is mainly based on the temperature control of the ambient temperature

Method used

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  • Temperature control system of temperature change reliability testing device
  • Temperature control system of temperature change reliability testing device

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Embodiment

[0026]A temperature control system of a temperature change reliability test device, with a PLC controller as the core component, using a cold temperature relay and a hot temperature relay to set the temperature, after the conversion of the thermocouple, through the rheostat of the high temperature adjustment module and the low temperature adjustment module The regulation of the voltage on the circuit realizes the control of the temperature. After the PLC controller receives the cold and hot feedback signal through the contactor KM6, it can adjust the button SA1 to the cold and hot cycle position. The thermocouple on the cold temperature relay and the hot temperature relay will output the platform temperature felt by the voltage U1 at both ends, the contact point 10 is high level, the contact point 9 is low level, and the temperature signal of the preset temperature is adjusted by the high temperature module And the voltage U2, U3 output on the rheostat of the low temperature a...

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Abstract

The invention discloses a temperature control system of a temperature change reliability testing device. The system comprises a PLC, a high temperature constant control module, a low temperature constant control module, a cold temperature relay, a hot temperature relay, a DC voltage stabilizing circuit, a thermocouple, heating wires, a power supply, a vacuum generator, an electromagnetic air valve, a plurality of contactors and a plurality of buttons. The temperature control system of a temperature change reliability testing device can realize constant temperature steady state control and coldand hot shock of a cold and hot cycle testing device, the anti-interference ability and sensitivity of the system are improved, and the system is optimized to a certain extent in space occupation.

Description

technical field [0001] The invention relates to a temperature control system of a temperature change reliability testing device, which belongs to the technical field of temperature in reliability testing. Background technique [0002] In the physical process and chemical reaction of chemical industry, petroleum, metallurgy, medicine and other production processes, temperature is often a very important quantity, which needs to be controlled accurately, and the temperature control system is often used to keep the temperature constant or make the temperature according to certain regulations. Therefore, the temperature control system is widely used in these fields, and it is a kind of industrial control system with a wide range of uses. At present, most of the temperature control systems distributed in the market are controlled by analog circuits and relays, which have the disadvantages of cumbersome circuits, poor adjustability, great influence on temperature, slow response spe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D23/22
CPCG05D23/22
Inventor 谢超逸杨琦施舜锴李俊阳陈跃林樊嘉杰
Owner HOHAI UNIV CHANGZHOU
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