An assembly process of a relay

Abstract

The invention relates to a relay and an assembly process thereof, comprising a main frame and a cover. Electrical components are installed on the main frame, and the cover is sealed on the main frame. A sealing hole is arranged in the middle of the bottom of the main frame. Dispensing holes are provided, and the sealing holes and dispensing holes communicate with the inside of the main frame. The assembly process includes the following steps: a. Electrical component installation: installing electrical components on the main frame; Dip the pins outside the bottom of the main frame with tin; c. Sealing glue: seal the main frame and the cover with one-component glue, and seal the sealing hole with one-component glue; d. Drying: apply one-component glue Put the glued relay into the oven to dry; e, scraping glue: scrape off the glue sticking to the cover and pins; f, dispensing glue: put the glue into the syringe, and use the syringe to dispense glue on the dispensing hole , and then dry; this invention mainly solves the problems of low sealing efficiency and high cost in the sealing process of relays, greatly improves the production efficiency of relays, is suitable for assembly line operations, and the production environment is cleaner, changing the past problems of glue distribution and dispensing. Phenomenon.

Description

technical field [0001] The invention relates to a relay production process, in particular to a relay assembly process. Background technique [0002] The relay is an electrical control device, an electrical appliance that causes the controlled quantity to undergo a predetermined step change in the electrical output circuit when the change of the input quantity meets the specified requirements. It has an interactive relationship between the control system and the controlled system. Usually used in automatic control circuits, it is actually an "automatic switch" that uses a small current to control the operation of a large current. It plays the role of automatic adjustment, safety protection, conversion circuit and so on in the circuit. [0003] In order to prevent the dust, harmful gas and moisture in the air from polluting the relay, and improve the adaptability and reliability of the relay to the harsh environment, the relay generally adopts a sealed structure, and the sea...

AI Technical Summary

Problems solved by technology

In the above process, due to the large volume of the sealing hole, when it is sealed with a one-component glue, it cannot be dried in an oven, because drying in an oven will cause the air left in the relay to expand due to heat and damage the structure of the relay. Therefore, only two-component glue (one-component glue plus curing agent) can be used to seal, and then dry naturally, which usually takes 4 hours, which will greatly reduce production efficiency

[0005] In addition, there is another sealing process that uses the hot riveting method to seal the sealing hole, but the hot riveting method will lead to an increase in cost, and the temperature is very high during hot riveting, which is easy to damage the relay, greatly reducing the safety factor, and even more after hot riveting. The remaining hot riveting head is very ugly, affecting the appearance of the entire relay

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