Quick power switching device for new energy vehicle

Abstract

The invention provides a quick power switching device for a new energy vehicle, and belongs to the technical field of battery reloading of new energy vehicles. The quick power switching device for thenew energy vehicle comprises a battery pack outer frame, a ball screw and a motor; the battery pack outer frame is used for carrying and conveying a battery pack, and a bearing support is fixedly arranged on the battery pack outer frame; the ball screw is used for being matched with the bearing support and converting rotation of the ball screw into linear motion of the bearing support; the motoris fixedly arranged in a battery bin, and used for driving the ball screw to rotate. A supporting block is arranged on the top face of the battery pack and can be matched with an interference block arranged on a battery bin pressing plate, and thus the battery pack is fixed and loosened in the vertical direction. According to the quick power switching device, convenient replacement and installation of the battery pack are achieved, heavy labor is avoided, and the power switching efficiency of the new energy vehicle is improved; through three-dimensional fixing of the battery pack, reliable positioning and installation of the battery pack are achieved.

Description

technical field [0001] The invention belongs to the technical field of battery replacement for new energy vehicles, and in particular relates to a quick battery replacement device for new energy vehicles. Background technique [0002] This section provides background information related to the present disclosure only and is not necessarily prior art. [0003] At present, new energy vehicles used for leasing, passenger and cargo operations, logistics, commuting, etc. generally use battery packs such as lead-acid batteries, nickel-metal hydride batteries, sodium-sulfur batteries, and lithium batteries to provide power. The density is high, the intensity of use is high, and the power consumption is large. Therefore, the battery pack has the characteristics of frequent charging, frequent replacement, and frequent installation. [0004] However, the battery packs used in new energy vehicles are usually bulky and heavy. For example, a single battery pack weighs as much as 80kg. W...

AI Technical Summary

Problems solved by technology

[0004] However, the battery packs used in new energy vehicles are usually bulky and heavy. For example, a single battery pack weighs as much as 80kg. When multiple battery packs are used in combination, the total weight of the battery pack is even greater. A series of operations such as disassembly, handling, replacement, and fixing of the bag are all pushed in and pulled out manually and with a forklift. There are problems of heavy manual labor, cumbersome and difficult replacement, and slow replacement speed, which seriously affects the replacement of new energy vehicles. Electrical efficiency and operating density, affecting normal operation

In addition, manual replacement and installation often have problems such as easy loosening of the battery pack, poor stability, low installation accuracy, and easy misalignment of electrical interfaces, which greatly affect the normal use of the battery pack and the operational reliability of new energy vehicles.

In addition, the working voltage of the battery pack of new energy vehicles is generally high, and there is a risk of electric shock during manual replacement.

[0005] Therefore, the current battery replacement technology in new energy vehicles has great disadvantages and problems - battery pack replacement is cumbersome and difficult, manual labor is heavy, replacement speed is slow, and there are safety risks, which have become urgent technical problems in this field

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