Space solar cell string non-contact pressing method

Abstract

In the space solar battery string non-contact pressure exerting method used is pressure exerting device with corresponding shape and size to space solar battery string. There is a gas storage cell inside the pressure exerting device, and gas entrnace is at top end of the gas storage cell, some small gas exit are arranged at the bottom end of the gas storage cell. The pressure exerting device is fixed on robot which drives pressure exerting device moving straight above the solar battery, controlls relative space between pressure exerting device and space solar battery, makes gas into gap of space solar battery and pressure exerting device through the small hole on pressure exerting device after gas source is put-through to form constant pressure space to make solar battery be firm fixed on said board.

Description

technical field [0001] The invention relates to a non-contact pressure application method for space solar cell strings, which uses automatic control technology to realize non-contact and precise pressure application after the space solar cell strings are pasted on the sailboard, and belongs to IC post-packaging [0002] technology field. Background technique [0003] In order to protect the solar cells used in the space environment and make the spacecraft run safely and reliably, the solar cell strings must be pasted on the sailboard, and then the battery strings should be pressurized so that the cloth can be firmly pasted on the sailboard. At present, in the process of pressurizing space solar cell strings, our country adopts the method of vacuuming and contact pressurization, which not only has low precision and high labor intensity, but also is easy to dislocate and the efficiency is not high. It is difficult to guarantee the quality of the cloth paste. The shortcomings ...

AI Technical Summary

Problems solved by technology

At present, in the process of pressurizing space solar cell strings, our country adopts the method of vacuuming and contact pressurization, which not only has low precision and high labor intensity, but also is easy to dislocate and the efficiency is not high. It is difficult to guarantee the quality of the cloth paste. The shortcomings are mainly reflected in the following aspects:

[0004] 1) The solar cell string is easy to shift from its original position when pressurized;

[0005] 2) Because of the contact pressure, it is easy to crush the cell

[0006] 3) It is difficult to ensure the size of the relative spacing of the battery strings;

[0007] 4) It is difficult to guarantee the error of the position and size of the battery string;

[0008] 5) Unable to achieve precise control of pressure

[0009] Among them, the offset of the battery strings from the original position will easily cause the two connected battery strings to contact, resulting in a short circuit, resulting in the failure of the two battery strings and failing to provide energy for the spacecraft.

It is difficult to ensure the relative spacing error of the battery strings. If the spacing is too large, the space of the sailboard will be wasted, thereby reducing the efficiency of the spacecraft energy system.

Vacuum contact pressure operation can not accurately control the pressure, if the pressure is too high, it will easily cause debris, and if the pressure is too small, it will be difficult to guarantee the quality of the cloth paste

[0010] After searching the existing IC packaging technology and non-contact pressure application technology, there is no report on the non-contact precise pressure application method after the space solar cell string is pasted on the sailboard.

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