Punch forming die for metal bipolar plate of fuel cell

Abstract

The invention discloses a punch forming die for a metal bipolar plate of a fuel cell. The punch forming die comprises a distribution area punching module and a flow field area punching module, the distribution area stamping module tightly surrounds the side face of the flow field area stamping module, so that the distribution area stamping module and the flow field area stamping module are combined to form a stamping forming die. In this way, the stamping forming die of the metal bipolar plate is designed in a separated mode, rapid switching of the die is facilitated, a distribution area and a flow field area can be freely combined, high-efficiency stamping of the metal bipolar plate with different use environments and power requirements is guaranteed, the design period can be shortened, and the cost is reduced. Meanwhile, the whole die is prevented from being stopped or even scrapped due to local damage of the punch forming die, and the die cost is reduced.

Description

technical field [0001] The invention relates to the field of fuel cells, in particular to a metal bipolar plate stamping die for a fuel cell. Background technique [0002] A fuel cell is a device that converts chemical energy into electrical energy. Its internal components include metal bipolar plates, proton exchange membranes and other components. Metal bipolar plates play important roles in supporting, providing reaction sites, and conducting electrons. Therefore, metal The structural design of the bipolar plate has a great influence on the performance of the battery, and its structural design directly affects the service life and efficiency of the battery. [0003] At present, the forming of metal plates is mostly stamped by dies. Due to the high precision requirements of metal plates for stamping dies and the long processing cycle of dies, the preparation cost of stamping dies is high, and regular maintenance is required. For large quantities Production has a certain i...

AI Technical Summary

Problems solved by technology

[0003] At present, the forming of metal plates is mostly stamped by dies. Due to the high precision requirements of metal plates for stamping dies and the long processing cycle of dies, the preparation cost of stamping dies is high, and regular maintenance is required. For large quantities Production has a certain impact

The traditional metal plate stamping die adopts an integrated design, that is, the characteristics of the air intake, distribution and flow field are all placed in one die for simultaneous processing. This type of die has poor applicability and can only stamp one plate shape. For new designs The plate needs to redesign the mold, resulting in a longer design and verification cycle; for the maintenance of the mold, the entire set of molds needs to be replaced, which will affect the production efficiency, and at the same time lead to the need to add spare molds, resulting in increased production costs

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