Device for automatically assembling fuel battery galvanic pile

Abstract

The invention provides a device for automatically assembling a fuel battery galvanic pile and belongs to the technical field of fuel batteries. The device comprises a stander, a pressure adjustable compression device, an automatic guide rod pull and location device and an automatic nut twisting device, wherein the pressure adjustable compression device and the automatic guide rod pull and location device are respectively fixed at two ends of the stander; and the automatic nut twisting device is movably arranged on the stander. By the device, the integration of combination and assembly of a galvanic pile component can be realized, so the automation degree is higher, the operation is convenient and quick, and the assembling efficiency of the fuel battery is improved; by exchanging an upper pressing block and a tray, the device can be applicable to fuel battery galvanic piles of various specifications and sizes, the uniformity is high, and the equipment cost for assembling the fuel batteries of different types can be reduced; by the upper pressing block ,a uniform assembling pressure can be provided, so a bipolar plate inside the galvanic pile is contacted with a membrane electrode assembly (MEA) uniformly, the contact resistance is reduced and the performance of the fuel battery is improved.

Description

technical field [0001] The invention relates to a device in the field of fuel cell technology, in particular to an automatic assembly device for a fuel cell stack. Background technique [0002] A fuel cell is different from a battery in the conventional sense in terms of principle and structure. It is a device that directly converts the chemical energy stored in fuel and oxidant into electrical energy electrochemically. Today, due to environmental pollution and energy shortage, fuel cells are expected to be used as an alternative energy source for fossil fuels due to their environmental friendliness and high energy conversion efficiency, and are increasingly valued by governments. There are many classification methods for fuel cells, usually according to the electrolyte used in the battery, fuel cells can be divided into alkaline fuel cells, phosphoric acid fuel cells, proton exchange membrane fuel cells, molten carbonate fuel cells, solid oxide fuel cells . Since proton e...

AI Technical Summary

Problems solved by technology

Although the device realizes the integration of the pressing device and the fuel cell stack, the structure is simple, and the force on each area on the end plate is basically uniform, but when the spacing of the sawtooth is fixed, when the stack is pressed, the top pressure Every time the tightening unit descends a sawtooth, the force required is greater. Therefore, the pressing force changes discontinuously, and it is difficult to achieve the best pressing force.

In addition, the device is complicated to disassemble and assemble, which is not conducive to the maintenance of the stack

Images