Battery box integrated with cooling water channel structure

Abstract

The invention belongs to the technical field of battery boxes, and provides a battery box integrated with a cooling water channel structure. The battery box comprises a battery box body, the battery box body is internally provided with a cavity for accommodating a battery, the side part of the battery box body is provided with at least one group of flowing water channel cavities, the end part of the battery box body is provided with an end plate, and a cooling water channel is integrated in the end plate. After the end plate is connected to the end part of the battery box body, the water flowing channel cavity is communicated with the cooling water channel to form a circulating cooling space. The battery box has the advantages that the water cooling channel on the end plate is also integrated on the extruded profile, and cooling liquid is prevented from overflowing, so the cooling effect is improved; and laser whole-circle full-length welding and sealing gasket connection are adopted,the strength is high, the sealing effect is good, machining is not needed, the production cost is low, and the battery box is reliable in structure and high in manufacturability.

Description

technical field [0001] The invention belongs to the technical field of battery boxes and relates to a battery box with an integrated cooling water channel structure. Background technique [0002] With the development of the times, electric vehicles, as a new energy-saving and environmentally friendly vehicle, are on the road of rapid development. The 48V light hybrid technology is a low-cost and fuel-saving technology newly proposed in recent years. The reason why the 48V system is called a light hybrid is mainly because the electric motor is rarely able to drive the vehicle alone, and more of it plays the role of kinetic energy recovery and auxiliary engine. Compared with those heavy hybrids, the motor power of the 48V system is much smaller. , the battery is not as big as them, so the advantage is that the structure is simple and the cost is easy to reduce. Those cars equipped with 48V system will not be higher than the traditional fuel version in terms of price, and may ...

AI Technical Summary

Problems solved by technology

The current mainstream 48V light-hybrid battery box adopts the integrated water channel of the extruded shell and two machined plates on the end face, and forms a cooling circulation system through MIG welding. Due to the gap between the inner and outer plates, the coolant overflows. Seriously, the cooling effect is not ideal. At the same time, the size of the MIG welding seam is large, the penetration depth is shallow, and the grinding has a great impact on the strength. It is necessary to add a machine-made avoidance groove, which leads to an increase in production costs, and it is often impossible to design products with low cost and good performance.

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