Vehicle and battery cabin, and ventilation structure of battery box

Abstract

The invention relates to a vehicle and a battery cabin, and a ventilation structure of a battery box. The vehicle comprises a vehicle frame and the battery cabin arranged on the vehicle frame, whereinthe battery cabin comprises a cabin body; the battery box is arranged in the cabin body and the cabin body is provided with an outer circulation channel; the outer circulation channel comprises an air inlet channel communicated with an air inlet of the battery box and an air outlet channel communicated with an inner cavity of the cabin body; and the cabin body is also provided with an inner circulation channel communicated with the air inlet channel and the inner cavity of the cabin body. When the external temperature is lower, the hot air generated by the battery box enters the inner cavityof the battery cabin, and the hot air in the inner cavity enters the air inlet channel through the inner circulation channel, so that the hot air directly enters the inner part of the battery box, andthe battery module in the battery box is directly heated, so that the heating efficiency is improved, the temperature of the battery box is ensured, the battery box is in an optimal temperature range, and the problem that the heating efficiency is low because a prior vehicle can only keep the heat generated by the battery in the battery cabin is solved.

Description

technical field [0001] The invention relates to a ventilation structure for a vehicle, a battery compartment and a battery box. Background technique [0002] With the rapid development of new energy vehicles, their advantages of energy saving and environmental protection are gradually highlighted, among which new energy buses have achieved considerable development under the guidance of national policies. Power battery is one of the core components of new energy buses, and its performance determines the performance of the whole vehicle. Plug-in hybrid electric buses generally use power-type power batteries, which have higher discharge rate and power output, so they also have greater heat generation. Reasonable thermal management for them is of great practical significance. [0003] In order to ensure that the power battery is in a suitable temperature range, necessary cooling methods must be adopted. In the field of plug-in buses, forced air cooling is often used, that is, a...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a vehicle to solve the problem of low heating efficiency caused by existing vehicles that can only keep the heat generated by the battery in the battery compartment; at the same time, the present invention also provides a ventilation system for the battery compartment and battery box structure

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