Fuel cell bipolar plate and fuel cell voltage routing inspection insertion part

Abstract

The invention provides a fuel cell bipolar plate which comprises a routing inspection insertion part connection structure for connecting a routing inspection insertion part. The routing inspection insertion part connection structure comprises an anti-off buckle and a contact terminal, wherein the anti-off buckle is formed by protruding or sinking along a direction which is not parallel to an insertion direction of the routing inspection insertion part; and the contact terminal is formed by protruding outwards along a direction in parallel to the insertion direction of the routing inspection insertion part at the edge of the bipolar plate. The technical scheme of the invention solves problems of existing connection modes between the routing inspection insertion part and a reactor core assembly, such as welding or insertion and extraction and the like.

Description

technical field [0001] The invention relates to the field of fuel cells, in particular to a fuel cell bipolar plate and a fuel cell voltage inspection plug-in. Background technique [0002] Fuel cell is a clean energy technology that directly converts chemical energy into electrical energy. It has the advantages of high energy conversion efficiency, simple structure, low emission, and low noise. It is often used in the power system of vehicles, ships and other vehicles. It can also be used as Mobile or stationary power stations. The fuel cell stack is usually formed by stacking and fastening multiple bipolar plates and membrane electrodes one by one through positioning tooling. The battery voltage inspection system is a device used to monitor the health status of the battery, including a voltage collector. The inspection wiring harness, the inspection connection terminal on the bipolar board, when the fuel cell fails, the signal on the voltage collector can accurately judge...

AI Technical Summary

Problems solved by technology

However, the plugging and unplugging method adopted in this invention is likely to cause inaccurate positioning. At the same time, during the plugging and unplugging process, the tightness of the plugging and unplugging position is not easy to control, and the inspection wire harness is easy to fall off.

[0005] A patented self-assembly structure for fuel cell voltage inspection (publication number is CN109449462A, public date is 2019.03.08), by turning the screw rod to drive the threaded moving parts to move in the housing, so that the two clamping pieces are close to each other to clamp Due to the limitation of the thickness of the bipolar plate and the large number of batteries, the fins on the tight pole plate are generally hundreds of sheets stacked, and a screw rod is required to drive hundreds of threaded moving parts. The size and stroke of the threaded moving parts are uniform. It is very small, the accuracy is not easy to guarantee, it is difficult to assemble, the stroke deviation of the threaded moving parts is large, and it is difficult to ensure the uniformity of clamping; if the screw rod is made of metal material, there will be a huge risk of short circuit on the one hand, and the wire should avoid The connection between the rod and the threaded moving part and the clamping piece is not easy to realize; on the other hand, due to the thickness limitation of the bipolar plate, the threaded moving part and the clamping piece are very thin and have low rigidity, so it is difficult to ensure uniform clamping of each section, and It is very difficult to manufacture and not easy to realize; if it is made of non-metallic materials, due to the long length of the screw rod and insufficient thread stiffness, the clamping force transmitted to the clamping piece through the thread is insufficient, and there is an unreliable connection with the fins of the bipolar plate. risk

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