Fuel cell bipolar plate structure and fuel cell
By designing gas guiding channels and components in the bipolar plate structure of the fuel cell, the problems of interference and backflow in gas flow are solved, thereby improving the working efficiency of the fuel cell.
CN224537071UActive Publication Date: 2026-07-21INNER MONGOLIA YIPAI HYDROGEN ENERGY TECH CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- INNER MONGOLIA YIPAI HYDROGEN ENERGY TECH CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-07-21
AI Technical Summary
Technical Problem
Existing fuel cell bipolar plate structures suffer from gas interference and backflow during gas flow, which affects operating efficiency.
Method used
The design of the electrode plate includes an air guide component in the air guide channel. The diameter of the air guide cavity near the air inlet is smaller than that of the air outlet. A ring array of side grooves is set on the inner wall of the air guide cover. The width of the side grooves gradually decreases to guide the fuel to flow smoothly and avoid backflow.
Benefits of technology
It increases fuel flow rate, enhances fuel cell efficiency, and reduces gas interference and backflow.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224537071U_ABST
Abstract
The utility model belongs to fuel cell technical field, and disclose fuel cell bipolar plate structure, including polar plate spare, the both sides of symmetry of polar plate spare all form the gas guide channel of conveying fuel along preset path, the inside of gas guide channel installs a plurality of gas guide spare along preset direction one by one, the gas guide cavity is formed on the gas guide spare, the diameter of gas guide cavity is close to the diameter of gas guide channel air inlet end less than close to gas guide channel air outlet end, the utility model discloses a polar plate spare is set up, when fuel input to polar plate spare, through the gas guide channel on polar plate spare to fuel guide, and through the gas guide piece on the gas guide channel to fuel guide, in addition because the diameter of gas guide cavity is close to the diameter of gas guide channel air inlet end less than close to gas guide channel air outlet end, make fuel flow when avoid reflux, thereby avoid the interference between gas and occur backflow phenomenon, and then improve the flow rate of gas, improved fuel cell's work efficiency.
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