A stacking device for proton exchange membrane fuel cells

Abstract

The invention discloses a stacking device for a proton exchange membrane fuel cell, comprising: a frame, a workbench, a primary pressure-applying mechanism, a secondary pressure-applying mechanism, a slider group, and a pressure-applying plate group; the workbench is fixed on the frame The upper part; the slider group includes two sliders that can move toward each other on the workbench; the primary pressure-applying mechanism is arranged on the frame and connected with the slider group, and can drive the two sliders to move toward each other to perform primary pressure; the second The secondary pressure-applying mechanism is connected to the slider group, which can drive the two sliders to move toward each other after the primary pressure application to perform secondary pressure application; the pressure-applying plate set includes two pressure-applying plates, and each pressure-applying plate is connected to a slider. Through the two modes of the slider group and the design of the two pressure-applying structures, two different pressure-applying methods, fast stacking and slow strong pressure, can be realized during the battery stacking process, so that both ends of the battery can be evenly applied. The precision of applying the force is high, avoiding the damage of the fuel cell in the process of applying the force, and facilitating assembly.

Description

technical field [0001] The invention relates to the field of proton exchange membrane fuel cells, more specifically, to a stacking device for proton exchange membrane fuel cells. Background technique [0002] The strong demand for clean energy in today's society has led to more and more fuel cells being put into social production and life. A fuel cell is a device that directly converts the chemical energy of hydrogen into electrical energy. It has high efficiency, low noise, and no pollution. And other advantages, in today's society is playing an increasingly important role. The output power voltage of a single proton exchange membrane fuel cell is low, so the fuel cell needs to be assembled into a stack in a certain way when the fuel cell is applied. The main components of the stack include bipolar plates, membrane electrodes, end plates and fasteners. The accuracy and uniformity of the force during the assembly process of the stack determines the performance of a stack. T...

AI Technical Summary

Problems solved by technology

There are some problems in the battery stacking devices used by fuel cell manufacturers today. For example, the compression force on the plates is uneven, resulting in cracks at one end of the plates or incomplete compression of the plates during the pressing process; The pressing speed of the device is slow, which wastes the operator's time and affects the efficiency of production. The battery stacking device is too heavy to move easily. During the pressing process, the control accuracy of the fuel cell plate is low, which affects the quality of the finished fuel cell.

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