Rapid sample piece structure of battery liquid cooling plate and manufacturing method thereof

Abstract

The invention relates to the technical field of new energy automobile power battery thermal management, and discloses a rapid sample piece structure of a battery liquid cooling plate. The rapid samplepiece structure sequentially comprises three layers such as a bottom plate, a middle frame and a cover plate; the bottom plate is attached to a battery module; the outer contours of the middle frameand the cover plate are consistent with the outer contour of the bottom plate; and a surface of the cover plate is designed with a standard matrix type conical convex point matrix structure; two punched holes with flanges are formed in the bottom plate; metal male connectors are connected to the punched holes; and the bottom plate, the middle frame, the cover plate and the metal male connectors are integrally welded together through a brazing process. The invention further discloses a manufacturing method of the rapid sample piece structure of the battery liquid cooling plate. According to therapid sample piece structure of the battery liquid cooling plate and the manufacturing method thereof, a machining process mode is used for replacing a die opening process mode to complete manufacturing of parts; investment cost is greatly reduced in a liquid cooling plate sample piece stage, and the development period is obviously shortened; performance requirements of mass production products can be met; and performance verification of a battery pack thermal management system of a whole vehicle level can be completed conveniently.

Description

technical field [0001] The invention relates to the technical field of thermal management of power batteries of new energy vehicles, in particular to a rapid prototype structure of a battery liquid cold plate and a manufacturing method thereof. Background technique [0002] As the main energy storage component of electric vehicles, battery modules are key components of electric vehicles, which directly affect the performance of electric vehicles. During the use of the battery module, due to the internal resistance of the internal cells, a certain amount of heat will be generated during normal operation, which will increase the internal temperature of the module. The normal operating temperature range of the battery cell is 15-40°C. If it exceeds 60°C, there will be certain safety hazards. The generation and rapid accumulation of heat will inevitably increase the internal temperature of the battery, especially when it is used in a high-temperature environment or when it is ch...

AI Technical Summary

Problems solved by technology

However, due to the characteristics of its structural design, such as: bump structure, flow channel structure, etc., the two-layer flat liquid cold plate needs to invest in large stamping dies for the production and manufacture of parts, and once the design verification results do not meet the technical requirements, It is often necessary to re-optimize the design and modify the mold or even scrap the mold, resulting in an increase in investment costs and an extension of the development cycle

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