A high reliability delay circuit distributor

Abstract

A highly-reliable time delay circuit distributor comprises a power module, a power supply control module, a highly-reliable time delay circuit distributing module, a signal collecting module and an input / output interface. An aircraft battery or a ground power can output direct-current power to the power module of the distributor through the input / output interface, the highly-reliable time delay circuit distributing module is driven after receiving a power distributing instruction sent by the power supply control module, the highly-reliable time delay circuit distributing module can achieve power distribution of all accesses through a power distribution control circuit and a power supply circuit according to the power distributing instruction, and the signal collecting module can collect voltages of all power distributing accesses in real time and output the collected voltages through the input / output interface. The highly-reliable time delay circuit distributor has the advantages of guaranteeing the double-relay double-contact redundant design, improving the reliability, reducing relay power consumption and saving equipment cost and equipment space.

Description

technical field [0001] The invention relates to a highly reliable delay circuit distributor, which belongs to the technical field of delay circuits. Background technique [0002] In recent years, with the acceleration of the development of new launch vehicles, the demand for parameter measurement of measurement communication and measurement and control systems has continued to increase. The power supply and distribution subsystem is the basis for providing power energy for measurement communication and measurement and control systems, and is also the key to ensuring effective measurement of parameters. All of these need to be powered and distributed through distributors. When the power distribution is implemented, it must be guaranteed to provide stable and reliable energy support. At the same time, due to the limited space of the launch vehicle body, higher challenges are posed for the design of low power consumption, small volume and low cost power distribution. [0003]...

AI Technical Summary

Problems solved by technology

[0004] The existing power distribution adopts redundant power supply with double relays and double contacts to ensure reliable power supply, such as figure 2 As shown, but due to the unavoidable differences in materials and processes between the two relays J1 and J2, the pull-in time is different, and there is a time period when J1 or J2 is powered by a single relay at the moment of power-on. At this time, the current through the relay is higher than normal. The working current is large, which is likely to cause the contact failure of the relay. The traditional design solves it by selecting relays J1 and J2 with large current capacity. The advantage is that the reliability of the distribution circuit is improved. The disadvantage is that the relay with large current capacity consumes a lot of power. Higher cost, resulting in larger distribution box

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