Electronic control module of electronic detonator and production process method of electronic control module

Abstract

The invention discloses an electronic control module of an electronic detonator. The electronic control module comprises a module encapsulation and injection molding block, a control circuit mainboard, a chip bridge wire terminal and a chip electrolytic capacitor with a connector, wherein the chip electrolytic capacitor with the connector, the module encapsulation and injection molding block, thecontrol circuit mainboard and the chip bridge wire terminal are integrally connected. The invention further discloses a production process method for producing the electronic control module. The manufacturing process is completed through encapsulation, injection molding and makeup. According to the production process method, a backhand-welding capacitor and a backhand-welding leg wire connector are integrally designed into an integrated chip piece, so that a backhand-welding process is avoided, and the whole process is fundamentally optimized; and a specially-designed makeup mode is adopted ineach procedure, the lifting stress effect of a simple support beam can be achieved in the whole process of chip mounting and backhand-welding of the chip electrolytic capacitor with the connector byadopting the makeup mode, therefore, automatic chip mounting is completely realized through a chip mounter, and production efficiency is greatly improved.

Description

technical field [0001] The invention relates to the field of electronic detonators, in particular to an electronic control module of an electronic detonator and a production process method thereof. Background technique [0002] The control core unit of the electronic detonator is the electronic control module (hereinafter referred to as the module). The module is mainly composed of ignition components, control circuits, energy storage capacitors, external connection ports / connectors and injection molding packaging blocks. Since the entire module needs to be assembled and inserted into the detonator shell, the overall volume of the module is required to be small and compact. And because the electronic detonator is a one-time consumable, the overall shape design of the module is required to be convenient for mass manufacture and assembly. [0003] At present, there are usually two overall structure modes of modules in the industry, one is "SMD ignition device + control circu...

AI Technical Summary

Problems solved by technology

The advantage of the first mode is that the size of the tantalum capacitor is small, and the manufacturing process of the whole module is simple, there are few types of work, and the process chain is short; the disadvantage is that the price of the chip tantalum capacitor is high, and the performance of the low-temperature environment is greatly attenuated, or even fails.

The advantage of the second type of mold is that the cost of post-welding electrolytic capacitors is low, and it can meet the performance requirements of low-temperature environments. It is necessary to cooperate with the design of special pin connectors (commonly known as capacitor brackets or capacitor brackets), and this connector can only use the post-welding process, resulting in complex manufacturing processes for the overall module, multiple types of work, and long process chains

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