Storage battery used for double-unit CubeSat

Abstract

The invention discloses a storage battery used for double-unit CubeSat. A circuit switch and a communication electrical connector are fixedly connected to a PCB substrate, four positioning grooves are arranged on the PCB substrate in parallel, temperature sensors are arranged on the PCB substrate at interval between two adjacent positioning grooves, lithium batteries are fixed in the positioning grooves, both ends of the lithium batteries' side walls are provided with cover plates respectively, a heating wire is winded on the side walls of the four lithium batteries in order, one ends of two silver conductive bands are connected to the positive end faces of two lithium batteries, and the other ends are connected to a power supply positive pole of the communication electrical connector through the PCB substrate, and the negative poles of the two lithium batteries are connected to a conductive strip. One ends of other two silver conductive bands are connected to the negative end faces of the other group of two lithium batteries, and the other ends are connected to a GND end of the circuit switch through the PCB substrate, and the positive poles of the two lithium batteries are connected to the conductive strip. A heating power supply connector is fixedly connected to the PCB substrate, and two ends of the heating wire are connected to the heating power supply connector. The storage battery provided by the invention has the advantages of compact structure, high energy density, and excellent temperature control performance, etc.

Description

technical field [0001] The invention belongs to the field of cube star power subsystems, in particular to a storage battery pack applied to a double-unit cube star. Background technique [0002] In recent years, with the rapid development of technologies such as communications, optoelectronic components, materials, sensors, and applied fluids, the development of CubeSat technology has accelerated significantly, and it has become possible to use CubeSats for communication and ground telemetry. The low cost has prompted the emergence of cubesat development programs around the world. [0003] The power subsystem is a very important subsystem of CubeSat, including power controller, battery pack and solar array. It provides the required working energy for the cube star, and the battery pack is the only energy storage device, which is responsible for the energy source of the cube star during the earth shadow period before and after entering orbit. It can be seen that the battery...

AI Technical Summary

Problems solved by technology

For example, the SwissCube one-unit cubic star jointly developed by many universities in Switzerland uses a small polymer lithium-ion battery as an energy storage device, but its lifespan is short and its capacity is low. The star has high capacity, high current, and high reliability requirements; and its temperature control range is -3°C~2°C, and it cannot be adjusted above 0°C, which will damage the performance and life of the lithium battery to a certain extent.

Images