Microminiature activating device for thermal batteries

Abstract

The invention relates to a microminiature activating device for thermal batteries. The microminiature activating device comprises piezoelectric ceramic plates, electrodes, an electric ignition head, an insulating layer, an insulated conductor, a gravitational block, ignition bars, a monomer cell, a shell body, cell poles, conducting wires and a piezoelectric ceramic reactor, wherein the shell body is divided into an upper layer and a lower layer, the monomer cell is arranged inside the upper layer, the cell poles are upwards arranged at the top end of the monomer cell, the ignition bars are arranged on the external wall and bottom end of the monomer cell, and the gravitational block, the insulating layer, the electrodes and the piezoelectric ceramic plates are sequentially arranged in the lower layer from top to bottom; the gravitational block is cylindrical, a circular through hole is formed in the middle of the gravitational block, the electric ignition head is arranged inside the circular through hole, an interlayer is arranged between the upper layer and the lower layer, and an opening is formed in the middle of the interlayer. According to the microminiature activating device for the thermal batteries, the piezoelectric ceramic plates are adopted as an activating energy source, the level of integration is high, the reliability of activation reaches 99.5% or more, and the reliability is good; compared with the existing activation modes, the microminiature activating device has the advantages of low space usage and low manufacturing cost.

Description

technical field [0001] The invention belongs to the technical field of fuzes, missiles and aerospace thermal batteries, and in particular relates to a miniature thermal battery activation device. Background technique [0002] Thermal battery is a battery activated by heating, mainly composed of substrate, positive electrode sheet, negative electrode sheet, electrolyte sheet, current collector, heating system, insulation gasket, battery case, battery cover with terminal, etc. At room temperature, the electrolyte inside the thermal battery is a non-conductive solid, and the electrode active material and the electrolyte do not undergo chemical reactions with each other, and are in a non-working state. Once put into use, as long as the activation signal is input to activate the battery, the internal temperature of the battery will rise rapidly through the heating system, the electrolyte will melt to form an ion conductor with high conductivity, and the positive and negative elec...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a micro-sized heat battery activating device and activating method, so as to solve the problems in the prior art that the burning speed of various materials is slow, the activating time is long, and other devices are added, the volume is relatively large, and the Large internal space and high cost; there are risks and insecurity in the process of use, so as to achieve small footprint, short activation time, low production cost, high integration, and safe use

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