Detecting device and detecting method for evenness of fuel cell bipolar plate

A detection device, fuel cell technology, applied in the direction of mechanical roughness/irregularity measurement, etc., can solve the problems of low assembly pressure, can not reflect the flatness of bipolar plates, can not truly reflect the flatness of bipolar plates, etc. Inexpensive, true test results, and the effect of a large test range

Inactive Publication Date: 2012-06-13
SUNRISE POWER CO LTD
View PDF6 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But its disadvantages are: it can only detect the flatness of the ridge plane in a limited number of parts, and cannot reflect the flatness of the entire bipolar plate; Flatness under actual assembly force

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Detecting device and detecting method for evenness of fuel cell bipolar plate
  • Detecting device and detecting method for evenness of fuel cell bipolar plate
  • Detecting device and detecting method for evenness of fuel cell bipolar plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The following examples can enable those skilled in the art to understand the present invention more fully, but do not limit the present invention in any way.

[0036] Taking the metal bipolar plate as an example, the device and testing method provided by the present invention will be further described.

[0037] A fuel cell bipolar plate flatness detection device, the detection device includes a console 12, a press and a tested component, the tested component includes an upper end plate 10, a lower end plate 6, a tested bipolar plate 7 and an MEA8, the detection device It also includes carbon paper dummy electrodes 9;

[0038] Wherein, carbon paper dummy electrode 9 is made up of carbon paper 2 clamping white stick paper 1 (as figure 1 shown); the size of white stick paper 1 is the same as MEA8, and the thickness is 0.07-0.1mm; the size of carbon paper 2 is the same as that of MEA effective area 11, and the thickness is 0.05-0.1mm;

[0039] The positions of the four co...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A detecting device and a detecting method for evenness of a fuel cell bipolar plate are provided. The detecting device comprises a control platform, a press and a tested assembly comprising an upper end plate, a lower end plate, a tested bipolar plate and a membrane electrode polar assembly (MEA). The detecting device is characterized by further comprising a carbon paper false electrode formed by clamping white stick paper through carbon paper. The white stick paper and the positions of the four corners of the MEA are all provided with carbon paper false electrode location holes corresponding to location holes arranged on the tested bipolar plate. The detecting method is that the upper end plate and the lower end plate clamp the tested bipolar plate, the MEA and the carbon paper false electrode and are arranged between an upper mold and a lower mold of the press, and pressurizing and pressure maintaining are performed on the tested assembly according to practical assembly force of galvanic pile. The white stick paper is taken out after pressure is removed, a user can observe prints on the white stick paper and determine the evenness of the bipolar plate according to the length and definition of the prints. The detecting device and detecting method for the evenness of the fuel cell bipolar plate can truly reflect the evenness of the bipolar plate under the practical assembly force of the galvanic pile so that the test result is true and effective.

Description

technical field [0001] The invention relates to the technical field of fuel cells, in particular to a detection device and a detection method for the flatness of a bipolar plate of a fuel cell. Background technique [0002] Bipolar plate flatness refers to the distance from the highest point to the lowest point on its surface. Bipolar plates, especially all-metal bipolar plates, are often deformed due to uneven structure of raw materials and uneven stress distribution during deformation when forming bipolar plates. If the warpage of the bipolar plate exceeds a certain range, it will greatly affect the distribution of the assembly force of the stack, resulting in a large force on the convex part and a small or no force on the concave part. In severe cases, it may even cause the membrane electrode to "three". In one "assembly (membrane-electrode-assembly, hereinafter referred to as MEA) breakdown so that the entire electric stack burned. Therefore, the flatness of bipolar pl...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/28
Inventor 窦永香侯中军付宇明平文
Owner SUNRISE POWER CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap