Check patentability & draft patents in minutes with Patsnap Eureka AI!

Method for built-in serial and parallel connection between integrated fuel cell stack models

A fuel cell stack and inter-module technology, applied in fuel cells, fuel cell groups, circuits, etc., can solve the problems of wasting materials, occupying space, insecurity, etc., and achieve the effects of convenient manufacturing, space saving and simple structure

Inactive Publication Date: 2009-09-23
SHANGHAI SHENLI TECH CO LTD
View PDF1 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] However, this current-collecting motherboard technology also has certain technical defects: it is necessary to connect the single stacks in series or in parallel by setting up devices such as screws or conductive wires between the single stacks of fuel cells. Since this connection method is an external connection, It is necessary to punch holes or set connection points on the current-collecting motherboard, the structure is complicated, it takes up space, wastes materials, and once the insulation layer of the external connecting wire is worn out, it is very unsafe

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
  • Method for built-in serial and parallel connection between integrated fuel cell stack models
  • Method for built-in serial and parallel connection between integrated fuel cell stack models
  • Method for built-in serial and parallel connection between integrated fuel cell stack models

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as figure 2 As shown, a built-in series-parallel connection method between two stack integrated fuel cell stack modules for forklifts, including two battery stacks 1a, 1b, rear end plate 21, rear end plate 22, and front end plate 23, the front end A concave space is dug out by milling on the side of the plate 23 in contact with the fuel cell stacks 1a, 1b, and the contact portion 331 of the concave space with the fuel cell stacks 1a, 1b is about 20 cm long, 10 cm wide, and 3 mm deep. The non-contact part 332 of the battery stack 1a, 1b is 5 cm long, 2 cm wide, and 3 mm deep; a current collector motherboard matching the concave space is embedded in the concave space, which can just fit into the collector of the concave space. For the current motherboard 33, coat the current collector motherboard (copper material) 33 with epoxy glue and put it into the above-mentioned concave space, and then grind it flat after curing at a high temperature of 80°C, so that the front...

Embodiment 2

[0040] Such as image 3 As shown, a built-in series-parallel connection method between four-stack integrated fuel cell stack modules for a 100KW bus, the fuel cell stack is four groups 1a, 1b, 1c, 1d, and 1a, 1b are arranged on the right side of the central collector plate 23 side, 1c and 1d are arranged on the left side of the central collector plate 23, the deflector closely connected with the central collector plate 23 of the fuel cell stack 1a is an air deflector, and the deflector closely connected with the rear end plate 21 is hydrogen Deflector, so that the current lead-out ear 311 is the negative pole; the deflector closely connected with the central collector plate 23 of the fuel cell stack 1b is a hydrogen deflector, and the deflector closely connected with the rear end plate 21 is an air deflector , so that the current lead-out ear 321 is the positive pole; the deflector closely connected with the central collector plate 23 of the fuel cell stack 1c is an air deflec...

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

The invention relates to a method for built-in serial and parallel connection between integrated fuel cell stack models, which comprises that: a fuel cell stack comprises at least two groups or more than two groups of fuel cell stack models, a front end plate or central collector plate, current collector mother boards and a rear end plate, wherein one or two sides of each of the front end plate or central collector plate and the rear end plate are provided with concave spaces; the insides of the concave spaces are embedded with the current collector mother boards, and the surfaces of the embedded current collector mother boards are leveled with the sides of the front end plate or central collector plate and the rear end plate; and each two of current collector mother plates which are embedded on the same side of the front end plate or central collector plate and correspond to the fuel cell stack models are connected in the concave space to allow the fuel cell stack models on the same side of the front end plate or central collector plate to be connected one another serially and parallelly. Compared with the prior art, the method has the advantages of simple structure, material and space conservation, and the like.

Description

technical field [0001] The invention relates to fuel cells, in particular to a built-in series-parallel connection method among integrated fuel cell stack modules. Background technique [0002] An electrochemical fuel cell is a device that converts hydrogen and oxidants into electrical energy and reaction products. The internal core component of the device is the membrane electrode (Membrane Electrode Assembly, referred to as MEA). The membrane electrode (MEA) is composed of a proton exchange membrane and two porous conductive materials, such as carbon paper, sandwiched between the two sides of the membrane. On the two boundary surfaces of the membrane and the carbon paper, there are even and finely dispersed catalysts for initiating electrochemical reactions, such as metal platinum catalysts. Conductive objects can be used on both sides of the membrane electrode to draw the electrons generated during the electrochemical reaction through an external circuit to form a curren...

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): H01M8/24H01M8/2404
CPCY02E60/50
Inventor 胡里清王泽民章波
Owner SHANGHAI SHENLI TECH CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com