Hygiene-grade corrosion-resistant temperature sensor

Abstract

The invention provides a hygiene-grade corrosion-resistant temperature sensor. The hygiene-grade corrosion-resistant temperature sensor comprises an upper cover, a shell, a probe, a circuit part and a plastic part used for fixing the circuit part, wherein the upper cover and the probe are in sealing connection with the upper end and the lower end of the shell respectively; interiors of the upper cover, the probe and the shell form a cavity for accommodating the circuit part and the plastic part; the probe comprises a digital integrated chip, a probe main body and an adapter; the external surface of the adapter is a smooth surface; two clamping grooves are formed in the top end of the probe main body; a sealing ring and a sealing pad are successively arranged in each of the upper clamping groove and the lower clamping groove, so that waterproof, dustproof and sealing effects can be achieved; two symmetric wrench clamping grooves are formed in two sides of the probe main body. The corrosion-resistant all-metal temperature sensor also has various output manners and protection functions, is capable of measuring liquid and gas, is applied to the high-temperature and high-corrosion environment, and can be applied to the field of the hygiene industry.

Description

technical field [0001] The invention relates to a sanitary grade corrosion-resistant temperature sensor. Background technique [0002] The temperature sensor is used in the temperature monitoring system. When the temperature reaches the set threshold, a detection signal is generated to protect the chain protection system. Most of the traditional temperature sensors use thermistor devices as sensing elements, which have complex circuits, troublesome calibration, poor reliability, large errors, low precision, and high cost; in some industrial applications with special requirements, the signal is required to be delayed for a period of time There are different requirements for the length of the time delay, and the traditional sensors cannot meet these requirements. At present, most of the temperature sensors on the market are based on integral potting, which is complex in process, high in cost, inconvenient in maintenance, and can ensure airtightness and waterproofness, but c...

AI Technical Summary

Problems solved by technology

Most of the traditional temperature sensors use thermistor devices as sensing elements, which have complex circuits, troublesome calibration, poor reliability, large errors, low precision, and high cost; in some industrial applications with special requirements, the signal is required to be delayed for a period of time Time and then output, the length of the delay has different requirements, and traditional sensors cannot meet these requirements

At present, most of the temperature sensors on the market are based on integral potting, which is complex in process, high in cost, inconvenient in maintenance, and can ensure airtightness and waterproofness, but cannot be used in high temperature and high pressure environments due to their inability to resist acid, alkali, and corrosion. , the application field is limited; moreover, the product lacks humanization in the use and operation design, the display status and output indication can only be observed from the front, the output mode is single, and the operation is cumbersome

[0003] The traditional temperature sensor probes are almost all installed with threads. After installation, the installation surface cannot be guaranteed to be flat. Dirt and dirt are easy to hide in some non-flat places, and they cannot be waterproof, dustproof and antifouling. They cannot be used in some special industries, such as medical treatment and food. , hygienic field; at the same time, the existing temperature sensor probes cannot be used in high temperature, high pressure, strong corrosion environment

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