Fuel cell individual assembly device

Abstract

The invention discloses a fuel cell individual assembly device, belongs to the technical field of fuel cells and mainly solves the problem that existing cell individual assembly cannot realize assembly of cell individuals on a large scale within a short time and is non-universal in size. The fuel cell individual assembly device is mainly characterized in that a whole is fixed between a device upper end plate and a device lower end plate through a device frame upright, a spiral pressure rod is mounted on the device upper end plate, a pressing disc is mounted at the lower end of the spiral pressure rod, and a pressure sensor is mounted in the pressing disc; a slider moving rail is arranged from the center of the device lower end plate to the device frame upright, a movable slider is arrangedon the slider moving rail and connected with the device frame upright through a thread-free pushing rod and a fixing screw, a bolt positioning clamping groove is formed in the surface of the device lower end plate, and scales are arranged on the bolt positioning clamping groove. The fuel cell individual assembly device has the advantages of simple assembly process, capability of assembling cell individuals on a large scale for testing and universal size and is mainly used for cell individual assembly during fuel cell production.

Description

technical field [0001] The invention belongs to the technical field of fuel cells, and in particular relates to a device for assembling single cells in the production process of fuel cells. Background technique [0002] In the fuel cell production process, membrane electrodes and bipolar plates need to be inspected and tested for their performance after they are produced. At present, single-cell testing is mostly used to conduct preliminary inspections on the performance of these raw materials, which can greatly save time and cost. [0003] At present, the assembly of single cells mainly adopts screw rods for fixed assembly and clamps for fixing, and both of the above two assembly methods have shortcomings. The screw-type assembly process is complicated and requires high quality operators. The uniformity of single cells assembled by different operators is very different. It is also difficult for the same operator to ensure the uniformity of the stack force every time it is a...

AI Technical Summary

Problems solved by technology

The screw-type assembly process is complicated and requires high quality operators. The uniformity of single cells assembled by different operators is very different. It is also difficult for the same operator to ensure the uniformity of the stack force every time it is assembled. As a result, there are large errors in the test analysis of core components

Fixtures are used for fixing, and screw rods cannot be used for assembly after assembly. Because the long-term pressure holding capacity of the fixture cannot be guaranteed, and the operation of using the fixture to enter and exit the gas and placing it on the instrument during the life test is very complicated, which is not conducive to the industrialization of fuel cells.

[0004] Chinese Patent Application No. 201620447568.2 discloses a quick assembly jig for fuel cell cells. The device is relatively simple. The single cell is fixed by the jig, which can solve the problem of uniform assembly force during fuel cell assembly. Fixed, so the fixture must be connected to the tester during the test, so the heating rod can only be used for heating, which cannot guarantee the uniformity of the temperature in the single cell, and the test results are not accurate

However, this device has a complex structure, large volume, and high cost, which is not conducive to the need for mass production of single cells.

[0007] Disadvantages of the existing technology: 1. Single cells need to be tested together with fixtures and instruments after assembly, so each single cell needs a dedicated fixture, which makes it impossible to assemble single cells in large quantities in a short time, which is not conducive to industrialization; 2. Due to different manufacturers The single cells that need to be tested are of different sizes, and the tooling used for assembly in the prior art is relatively fixed, which poses a great cost risk to the assembly of single cells of different sizes

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