Quick-change battery end liquid cooling connecting device, battery pack and electric automobile

Abstract

The invention discloses a quick-change battery end liquid cooling connecting device, a battery pack and an electric vehicle, which are used for being connected with a liquid supply device for providing cooling liquid, and comprise a mounting seat arranged on the battery pack; the connecting valve is fixed on the mounting seat, one end, located on the inner side of the battery pack, of the connecting valve is connected with the liquid cooling pipeline, the other end of the connecting valve is used for being connected with a liquid supply device, a circulation channel capable of being opened and closed is formed in the connecting valve, and the circulation direction of the circulation channel is perpendicular to the plane direction of the battery pack; the battery pack can be communicated with a liquid cooling pipeline of the electric automobile after being installed on the electric automobile from bottom to top. According to the scheme, in the process of installing the battery pack at the bottom of the electric automobile, the battery pack is lifted from bottom to top, when the battery pack is lifted upwards in place, the liquid cooling connecting device of the battery pack can be in sealed communication with a liquid cooling pipeline of the electric automobile while the battery pack is installed, the sealing performance is ensured, liquid leakage is prevented, and the installing and connecting process is simple and efficient.

Description

[0001] This application claims the priority of Chinese patent application 202010981928.8 with a filing date of 2020 / 09 / 17. This application cites the above patent application in its entirety. technical field [0002] The invention relates to the field of battery replacement for electric vehicles, in particular to a quick-change battery terminal liquid cooling connection device, a battery pack and an electric vehicle. Background technique [0003] At present, there are mainly two ways to obtain energy for electric vehicles: charging and battery replacement. Because the power swap method can realize rapid power supply, reduce the waiting time of customers, and improve the utilization rate of the swap station. In addition, the battery can be charged intensively at night, realizing the "peak-shaving energy storage" of the electric load. At the same time, it improves the comprehensive utilization efficiency of electric equipment and prolongs the service life of batteries, which...

AI Technical Summary

Problems solved by technology

However, the current quick-change battery pack and the plug-in connector structure on the quick-change bracket assembly are not perfect in liquid tightness due to the limitation of the locking position of the locking mechanism of the battery pack, and there may be a problem of dripping, which will cause leakage other security risks

Therefore, the design of the liquid cooling connector on the replaceable battery pack is greatly restricted

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