Fuel cell press

Abstract

A fuel cell press provided by the invention belongs to the technical field of fuel cell tooling, and particularly relates to assembly and compacting equipment for fuel cells. The fuel cell press comprises: a frame, a power device, a pressure transmission device, an upper mold, a lower mold, and an electronic control system, wherein the fuel cell press further comprises a linear grating scale, a grating scale head, and a pressure sensor. When the pressure value needs to be controlled, the electronic control system reads the signal of the pressure sensor; when a set pressure value is reached, the numerical control motor is stopped, and then each of the screws around the fuel cell assembly is locked; when the size value needs to be controlled, the electronic control system reads the signal ofthe reading head of the grating scale head, and when the set stroke is reached, the numerical control motor is stopped, and then each of the screws around the fuel cell assembly is locked; and when the numerical control motor is reversed, the upper mold moves upward to take out the assembled fuel cell assembly. After adopting the technical solution, the fuel cell press can be applied to assemblyof various types of fuel cells.

Description

technical field [0001] The invention belongs to the technical field of fuel cell tooling, in particular to assembly and pressing equipment for fuel cells. Background technique [0002] Such as Figure 6 As shown, the fuel cell assembly 800 includes an upper end plate 801, a lower end plate 802, and a single cell 803. The two ends of the screw rod 804 are locked with nuts, and the multiple single cells 803 in the middle are pressed tightly through the upper end plate 801 and the lower end plate 802 to achieve The purpose of airtightness is to prevent fuel leakage; since there are multiple screw rods 804 around the fuel cell assembly 800, it is difficult to ensure that the locking tension of each screw rod 804 is uniform if it is not compressed by a press and assembled directly by tightening the nuts , leading to fuel leakage due to poor sealing; therefore, when assembling the fuel cell, the upper end plate 801 and the lower end plate 802 must be pressed to a certain pressure ...

AI Technical Summary

Problems solved by technology

[0003] like Image 6 As shown, it is a partial schematic diagram of the existing fuel cell assembly and compaction equipment, including a pressure transmission device, a pressure mold base, an upper mold 701, and a lower mold 702; the fuel cell assembly 800 to be assembled is placed on the upper mold 701, the lower mold Between the molds 702, the pressure transmission device pushes the pressure mold base, so that the upper mold 701 and the lower mold 702 can compress the battery assembly 800; since the pressure transmission device of the medium press in the prior art generally adopts a hydraulic device, it can only be used for pressure. Relatively precise control, it is difficult to precisely control the stroke

[0004] However, the structures or materials used by various fuel cells are not the same. Some fuel cells need to reach a set pressure value when compacted, and some fuel cells need to reach a set size value when compacted; so the existing Technical presses are difficult to apply to the assembly of various fuel cells

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