A lightweight design of a launch vehicle lithium ion battery pack

A lithium-ion battery pack and lightweight design technology, which is applied to battery pack parts, batteries, secondary batteries, etc., can solve problems such as unsatisfactory lightweight, miniaturization, and large specific weight, and achieve weight reduction, weight reduction, The effect of simple overall structure

Active Publication Date: 2018-12-21
SHANGHAI INST OF SPACE POWER SOURCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the proportion of the structural parts of the lithium-ion battery pack of the launch vehicle is very large, generally around 30%, and even as high as 50%, which does not meet the requirements of light weight and miniaturization

Method used

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  • A lightweight design of a launch vehicle lithium ion battery pack
  • A lightweight design of a launch vehicle lithium ion battery pack
  • A lightweight design of a launch vehicle lithium ion battery pack

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Embodiment Construction

[0024] Such as figure 1 As shown, a lithium-ion battery pack of a launch vehicle with a lightweight design includes a bottom plate 1, a support rod 2, a battery stack 3, an electrical connector 4, a cover plate 5, a support rod countersunk screw 6, and an electrical connector fixing screw 7 . There are several protruding small foot platforms around the bottom plate 1 and cover plate 5, and there are countersunk holes matching the outer diameter of the support rod 2 on the small support platform. structure. The battery stack 3 is installed in a space formed between the base plate 1 and the cover plate 5 . When the bottom plate 1, the support rod 2 and the cover plate 5 are locked with screws, the battery stack 3 should not be taken out from the space, and will not be pressed by the bottom plate 1 and the cover plate 2 at the same time. The gap between the surface of the battery stack and the cover plate and the bottom plate is potted and fixed with silicone rubber. The elec...

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Abstract

The invention discloses a lightweight designed lithium ion battery pack of a carrier rocket, comprising a bottom plate, a support rod, a battery stack, an electrical connector, a cover plate, a support rod countersunk head screw and an electrical connector fixing screw. A support rod is inserted into a counterbore, and that countersunk head screws of the support rod are fixedly installed to form ashell structure. The countersunk head screws of the support rod are connected with the countersunk head screws of the support rod to form a shell structure. The battery stack is mounted in a space formed between the bottom plate and the cover plate. The lithium ion battery pack of the carrier rocket of the invention has simple overall structure, using high strength and low density metallic materials as structural members, The weight of the battery pack is greatly reduced, and the structure adopts the method of hollowing out the thin wall and combining the reinforcing ribs, thus realizing therequirements of high-strength and lightweight design of the lithium ion battery pack of the carrier rocket. The proportion of the lithium ion battery pack structure of the carrier rocket of the invention is about 10%, and the weight of the lithium ion battery pack of the carrier rocket of the invention is reduced by about 20% compared with that of other carrier rockets.

Description

technical field [0001] The invention belongs to the field of lithium-ion batteries for launch vehicles, and in particular relates to a lithium-ion battery pack for launch vehicles with a lightweight design. Background technique [0002] With the development of launch vehicle technology, higher requirements are put forward for the power supply on the rocket. In terms of power supply technology for entering space, low-cost, high reliability, fast maintenance, lightweight, and miniaturized launch vehicle power supply technology are the main development directions in the future. The new type of launch vehicle puts forward higher power output capability and greater energy output capability for the power supply. As an important part of the launch vehicle subsystem, the lithium-ion battery pack of the launch vehicle provides energy guarantee for related instruments and equipment. If the lithium-ion battery pack of the launch vehicle is smaller and lighter without reducing the pow...

Claims

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Application Information

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IPC IPC(8): H01M2/10H01M10/0525H01M50/204
CPCH01M10/0525H01M2220/20H01M50/20Y02E60/10
Inventor 沈川杰李克锋王冠史佳超梁海刘虹
Owner SHANGHAI INST OF SPACE POWER SOURCES
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