Electrochemical gas sensor ultrasonic welding tool and method

Abstract

The invention provides an electrochemical gas sensor ultrasonic welding tool. The electrochemical gas sensor ultrasonic welding tool comprises a base plate. A containing mechanism for containing an electrochemical gas sensor lower shell is arranged at one end of the length direction of the base plate, and a pressing mechanism cooperating with the containing mechanism to press the electrochemical gas sensor lower shell on the containing mechanism is arranged at the end, away from the containing mechanism, of the base plate. The tool is simple in structure and convenient to operate, the weldingquality and the consistency can be improved, and the situation of pseudo soldering or material overflowing is avoided. The invention further provides an electrochemical gas sensor ultrasonic welding method.

Description

technical field [0001] The invention relates to an ultrasonic welding tool for an electrochemical gas sensor, belonging to the technical field of electrochemical gas sensors. Background technique [0002] Electrochemical gas sensor is a sensor device that uses the principle of electrochemical catalysis to detect and analyze the target gas. It has the advantages of good selectivity, high sensitivity, and fast response time. Because electrochemical gas sensors have very sensitive responses to toxic gases such as ammonia, carbon monoxide, sulfur dioxide, hydrogen sulfide, chlorine, phosgene, and hydrogen fluoride, electrochemical gas sensors are often used as an early warning of toxic gas leakage in the environment to avoid toxic Substances pose a threat to human health. [0003] A typical electrochemical gas sensor includes internal components such as a working electrode, a counter electrode, a reference electrode, and a diaphragm, and then uses an upper cover and a lower cas...

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Problems solved by technology

However, the ultrasonic welding package also has problems such as complex structure of the welding place, it takes a lot of time to adjust the position of the sensor, and there are requirements for the operator's skills and proficiency, and the ultrasonic welding part of the lower shell of the sensor is easy to swell during welding.

In addition, the use of ultrasonic welding electrochemical gas sensors also often has the problem of unbalanced welding. Leakage phenomenon seriously affects the performance of the sensor and even damages human health; 2. There is a problem of overflow, which not only affects the appearance of the sensor, but also is not conducive to sensor label bonding and later packaging

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