Double-stack combined type fuel cell module

Abstract

The invention provides a double-stack combined type fuel cell module. The double-stack combined type fuel cell module comprises a fuel cell stack group composed of a fuel cell stack I and a fuel cellstack II, a packaging box, a packaging side cover, an insulating transition plate and a connecting copper bar, wherein the packaging box is of a structure body which is used for sealing the fuel cellstack group and is provided with a containing cavity with an opening formed in one side; the packaging side cover and the packaging box are fixedly assembled to completely contain the fuel cell stackgroup which is arranged in parallel; a flow channel, which is used for communicating each gas-liquid inlet / outlet formed in the fuel cell stack group, is arranged on the end face at one side, facing the fuel cell stack group, of the packaging side cover; the insulating transition plate is arranged between the fuel cell stack group and the packaging side cover and is provided with a transition branch flow channel and a transition fastening part, which are matched with the position of each gas-liquid inlet / outlet formed in the fuel cell stack group; the connecting copper bar is used for connecting and fixing electric power connector parts which are distributed on the fuel cell stack group in a staggering manner. According to the double-stack combined type fuel cell module provided by the invention, the two fuel cell stacks are effectively combined together by utilizing a single connection and distribution plate; the output power of the fuel cell module is improved and the volume of the fuel cell module is minimized.

Description

technical field [0001] The invention relates to a proton exchange membrane fuel cell module, in particular to a double-stack combined fuel cell module. Background technique [0002] Because the proton exchange membrane fuel cell has outstanding features such as fast start-up at room temperature, no electrolyte loss, easy water discharge, long life, high specific power and specific energy, it is suitable as a power system for vehicles, ships and other vehicles. It can be used as a mobile or fixed power generation unit, such as a fuel cell engine, a backup power source in the communication field, or an emergency generator in a substation. However, as the main driving energy generating device of a passenger car, a fuel cell engine often needs to have a relatively large output power. Of course, in order to achieve high power output, a fuel cell stack (fuel cell module) with high power output must be required, which puts forward higher requirements for the design and manufacture...

AI Technical Summary

Problems solved by technology

However, this integrated distribution structure basically has relatively complex assembly or multi-body connection problems, which is not conducive to mass production and assembly

In addition, there are many intermediate connections (many parts), which increases the processing steps and costs, and naturally there is a greater risk of leakage, especially if the function of the integrated distribution structure is not maximized, it will also make the fuel cell system take up a lot Space

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