CN209786083U - Titanium alloy bipolar plate of air-cooled fuel cell - Google Patents
Titanium alloy bipolar plate of air-cooled fuel cell Download PDFInfo
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- CN209786083U CN209786083U CN201920846671.8U CN201920846671U CN209786083U CN 209786083 U CN209786083 U CN 209786083U CN 201920846671 U CN201920846671 U CN 201920846671U CN 209786083 U CN209786083 U CN 209786083U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
An air-cooled fuel cell titanium alloy bipolar plate comprises a titanium alloy shell and a plurality of cell units; the first end of the titanium alloy shell is provided with a hydrogen channel inlet and a first heat conducting plate; the second end of the titanium alloy shell is provided with a hydrogen channel outlet and a second heat conducting plate; the outer surface of the titanium alloy shell is provided with a plurality of heat dissipation grooves; an internal heat dissipation channel is arranged inside the titanium alloy shell, an air inlet is arranged beside the inlet of the hydrogen channel, and an air outlet is arranged beside the outlet of the hydrogen channel. First heat-conducting plate, second heat-conducting plate and radiating groove constitute outside air cooling system jointly, and inside air cooling system is constituteed jointly to inside radiating passage, air inlet and gas outlet, and outside air cooling system is right simultaneously with inside air cooling system the utility model provides an air cooling fuel cell titanium alloy bipolar plate's outside and inside dispel the heat, have improved the radiating effect greatly.
Description
Technical Field
The utility model relates to a fuel cell technical field, especially an air cooling fuel cell titanium alloy bipolar plate.
Background
In recent years, with the use of military high-power electrical and electronic components, a demand for longer duration and better portability has been placed on power supplies. Particularly in the aerospace field, the power supply is required to have high endurance mileage, light weight, stealth property and the like, and the traditional battery or lithium ion battery can not reach the standard in the aspects of mass-power ratio, volume-power ratio and energy conversion efficiency. The fuel cell technology has good infrared stealth performance compared with the traditional cell because the working temperature is 80-100 ℃, the energy conversion mode is that the hydrogen diameter is converted into electric energy, the conversion efficiency can reach about 60 percent, long-time power supply can be provided after compression and hydrogen storage, and the fuel cell technology has higher endurance mileage. Fuel cells are therefore increasingly used in the field of aeronautical power propulsion.
The proton exchange membrane fuel cell stack is provided with two key parts, namely a bipolar plate and a membrane electrode, wherein the total weight of the 30KW cell stack is about 105-200kg, and the weight of the bipolar plate accounts for 90% of the whole cell stack.
Bipolar plates are classified into two types, one being graphite bipolar plates and the other being metal bipolar plates. Graphite bipolar plates are bulky and fragile and are generally used only as stationary power sources. The movable power supply is mainly a metal bipolar plate, and the mainstream product is a 316L stainless steel metal bipolar plate. The titanium is a novel aviation material, the strength and the corrosion resistance of the titanium are better than those of stainless steel, the density (4.8g/cm3) of the titanium is lower than that of the stainless steel (7.8g/cm3), and the quality of the whole pile can be reduced by nearly 37% by adopting pure titanium or titanium alloy as a base material of the bipolar plate. The method has important practical significance in view of mass power density and load economy. The bipolar plate applied to the aerospace field has higher requirements on heat dissipation.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an air cooling fuel cell titanium alloy bipolar plate that heat dispersion is better to solve above-mentioned problem.
An air-cooled fuel cell titanium alloy bipolar plate comprises a titanium alloy shell and a plurality of cell units arranged in the titanium alloy shell; a first end of the top surface of the titanium alloy shell is provided with a hydrogen channel inlet, and a first heat conducting plate is arranged beside the hydrogen channel inlet in a protruding manner; a second end of the top surface of the titanium alloy shell is provided with a hydrogen channel outlet, and a second heat conducting plate is arranged beside the hydrogen channel outlet in a protruding manner; the outer surface of the titanium alloy shell is provided with a plurality of heat dissipation grooves; an internal heat dissipation channel is arranged inside the titanium alloy shell, an air inlet communicated with a first end of the internal heat dissipation channel is arranged beside an inlet of the hydrogen channel, and an air outlet communicated with a second end of the internal heat dissipation channel is arranged beside an outlet of the hydrogen channel.
Further, the hydrogen channel inlet and the hydrogen channel outlet are diagonally arranged.
Furthermore, the first heat-conducting plate and the second heat-conducting plate are arranged diagonally.
furthermore, a plurality of first hydrogen gate bridges are arranged at one end, close to the interior of the titanium alloy shell, of the hydrogen channel inlet, and a first filter screen is arranged at the position of each first hydrogen gate bridge.
Furthermore, a plurality of second hydrogen grid bridges are arranged at one end, close to the interior of the titanium alloy shell, of the hydrogen channel outlet, and a second filter screen is arranged at the second hydrogen grid bridge.
Furthermore, the corner of the titanium alloy shell is also provided with a polling interface.
Furthermore, the corner of the titanium alloy shell is also provided with a positioning hole.
Further, the internal heat dissipation channel comprises a plurality of heat dissipation branch pipes, and the heat dissipation branch pipes are located between partial battery units.
Compared with the prior art, the titanium alloy bipolar plate of the air cooling fuel cell comprises a titanium alloy shell and a plurality of battery units arranged in the titanium alloy shell; a first end of the top surface of the titanium alloy shell is provided with a hydrogen channel inlet, and a first heat conducting plate is arranged beside the hydrogen channel inlet in a protruding manner; a second end of the top surface of the titanium alloy shell is provided with a hydrogen channel outlet, and a second heat conducting plate is arranged beside the hydrogen channel outlet in a protruding manner; the outer surface of the titanium alloy shell is provided with a plurality of heat dissipation grooves; an internal heat dissipation channel is arranged inside the titanium alloy shell, an air inlet communicated with a first end of the internal heat dissipation channel is arranged beside an inlet of the hydrogen channel, and an air outlet communicated with a second end of the internal heat dissipation channel is arranged beside an outlet of the hydrogen channel. First heat-conducting plate, second heat-conducting plate and radiating groove constitute outside air cooling system jointly, and inside air cooling system is constituteed jointly to inside radiating passage, air inlet and gas outlet, and outside air cooling system is right simultaneously with inside air cooling system the utility model provides an air cooling fuel cell titanium alloy bipolar plate's outside and inside dispel the heat, have improved the radiating effect greatly.
Drawings
Embodiments of the present invention are described below with reference to the accompanying drawings, in which:
Fig. 1 is a schematic top view of a titanium alloy bipolar plate for an air-cooled fuel cell according to the present invention.
Fig. 2 is an enlarged schematic view of a portion a in fig. 1.
Detailed Description
The following describes in further detail specific embodiments of the present invention based on the drawings. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.
Referring to fig. 1 and 2, the air-cooled fuel cell titanium alloy bipolar plate provided by the present invention includes a titanium alloy housing 10 and a plurality of battery cells disposed inside the titanium alloy housing 10.
A first end of the top surface of the titanium alloy shell 10 is provided with a hydrogen passage inlet 21, and a first heat conducting plate 31 is arranged beside the hydrogen passage inlet 21 in a protruding manner; the second end of the top surface of the titanium alloy housing 10 is provided with a hydrogen passage outlet 22, and a second heat conduction plate 32 is protrudingly provided beside the hydrogen passage outlet 22. The first heat conduction plate 31 and the second heat conduction plate 32 are both connected to an external metal frame, and the first heat conduction plate 31 and the second heat conduction plate 32 can conduct heat of the titanium alloy housing 10 to the metal frame for heat dissipation.
In the present embodiment, the hydrogen gas passage inlet 21 and the hydrogen gas passage outlet 22 are diagonally disposed, and the first heat transfer plate 31 and the second heat transfer plate 32 are diagonally disposed.
A plurality of radiating grooves 11 are formed in a plurality of outer surfaces of the titanium alloy shell 10, so that the contact area between the titanium alloy shell 10 and air is increased, and the radiating effect is improved.
The first heat-conducting plate 31, the second heat-conducting plate 32 and the heat-dissipating groove 11 together constitute an external air heat-dissipating system.
The interior of the titanium alloy housing 10 is provided with an internal heat dissipation channel, which includes a plurality of heat dissipation branch pipes, and the heat dissipation branch pipes are located between some of the battery units, for example, every 2 battery units are provided with one heat dissipation branch pipe. An air inlet 41 communicated with a first end of the internal heat dissipation channel is further arranged beside the hydrogen channel inlet 21, an air outlet 42 communicated with a second end of the internal heat dissipation channel is arranged beside the hydrogen channel outlet 22, and the internal heat dissipation channel, the air inlet 41 and the air outlet 42 jointly form an internal air heat dissipation system.
Outside air cooling system is right simultaneously with inside air cooling system the utility model provides an air cooling fuel cell titanium alloy bipolar plate's outside and inside dispel the heat, the radiating effect is compared and is improved more than 60% in the bipolar plate that only has radiating groove 11.
In this embodiment, one end of the hydrogen channel inlet 21 close to the inside of the titanium alloy shell 10 is provided with a plurality of first hydrogen grid bridges 211, and a first filter screen is arranged at the first hydrogen grid bridge 211; one end of the hydrogen passage outlet 22 close to the inside of the titanium alloy shell 10 is provided with a plurality of second hydrogen grid bridges 221, and a second filter screen is arranged at the second hydrogen grid bridges 221. The first hydrogen gate bridge 211 and the second hydrogen gate bridge 221 can dissipate and filter hydrogen.
The corners of the titanium alloy housing 10 are further provided with inspection interfaces 50 for performing voltage inspection on the plurality of battery cells inside the titanium alloy housing 10.
The corner of the titanium alloy housing 10 is further provided with a positioning hole 60, which is matched with the convex pillar on the external metal frame to position the titanium alloy housing 10 during installation.
Compared with the prior art, the titanium alloy bipolar plate of the air cooling fuel cell comprises a titanium alloy shell 10 and a plurality of battery units arranged inside the titanium alloy shell 10; a first end of the top surface of the titanium alloy shell 10 is provided with a hydrogen passage inlet 21, and a first heat conducting plate 31 is arranged beside the hydrogen passage inlet 21 in a protruding manner; the second end of the top surface of the titanium alloy shell 10 is provided with a hydrogen passage outlet 22, and a second heat conduction plate 32 is arranged beside the hydrogen passage outlet 22 in a protruding manner; the outer surface of the titanium alloy shell 10 is provided with a plurality of heat dissipation grooves 11; an internal heat dissipation channel is arranged inside the titanium alloy housing 10, an air inlet 41 communicated with a first end of the internal heat dissipation channel is arranged beside the hydrogen channel inlet 21, and an air outlet 42 communicated with a second end of the internal heat dissipation channel is arranged beside the hydrogen channel outlet 22. First heat-conducting plate 31, second heat-conducting plate 32 and radiating groove 11 constitute outside air cooling system jointly, and inside air cooling system is constituteed jointly to inside heat dissipation channel, air inlet 41 and gas outlet 42, and outside air cooling system is right simultaneously with inside air cooling system the utility model provides an air cooling fuel cell titanium alloy bipolar plate's outside and inside dispel the heat, have improved the radiating effect greatly.
The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.
Claims (8)
1. An air-cooled fuel cell titanium alloy bipolar plate, characterized in that: the battery comprises a titanium alloy shell and a plurality of battery units arranged in the titanium alloy shell; a first end of the top surface of the titanium alloy shell is provided with a hydrogen channel inlet, and a first heat conducting plate is arranged beside the hydrogen channel inlet in a protruding manner; a second end of the top surface of the titanium alloy shell is provided with a hydrogen channel outlet, and a second heat conducting plate is arranged beside the hydrogen channel outlet in a protruding manner; the outer surface of the titanium alloy shell is provided with a plurality of heat dissipation grooves; an internal heat dissipation channel is arranged inside the titanium alloy shell, an air inlet communicated with a first end of the internal heat dissipation channel is arranged beside an inlet of the hydrogen channel, and an air outlet communicated with a second end of the internal heat dissipation channel is arranged beside an outlet of the hydrogen channel.
2. The air-cooled fuel cell titanium alloy bipolar plate of claim 1, wherein: the hydrogen channel inlet and the hydrogen channel outlet are diagonally arranged.
3. The air-cooled fuel cell titanium alloy bipolar plate of claim 1, wherein: the first heat conducting plate and the second heat conducting plate are arranged diagonally.
4. The air-cooled fuel cell titanium alloy bipolar plate of claim 1, wherein: one end of the hydrogen channel inlet close to the interior of the titanium alloy shell is provided with a plurality of first hydrogen gate bridges, and a first filter screen is arranged at the first hydrogen gate bridge.
5. The air-cooled fuel cell titanium alloy bipolar plate of claim 4, wherein: one end of the hydrogen channel outlet, which is close to the interior of the titanium alloy shell, is provided with a plurality of second hydrogen grid bridges, and a second filter screen is arranged at the second hydrogen grid bridge.
6. The air-cooled fuel cell titanium alloy bipolar plate of claim 1, wherein: and the corners of the titanium alloy shell are also provided with inspection interfaces.
7. The air-cooled fuel cell titanium alloy bipolar plate of claim 1, wherein: and the corner of the titanium alloy shell is also provided with a positioning hole.
8. The air-cooled fuel cell titanium alloy bipolar plate of claim 1, wherein: the internal heat dissipation channel comprises a plurality of heat dissipation branch pipes, and the heat dissipation branch pipes are located between partial battery units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920846671.8U CN209786083U (en) | 2019-06-05 | 2019-06-05 | Titanium alloy bipolar plate of air-cooled fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920846671.8U CN209786083U (en) | 2019-06-05 | 2019-06-05 | Titanium alloy bipolar plate of air-cooled fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209786083U true CN209786083U (en) | 2019-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920846671.8U Active CN209786083U (en) | 2019-06-05 | 2019-06-05 | Titanium alloy bipolar plate of air-cooled fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209786083U (en) |
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2019
- 2019-06-05 CN CN201920846671.8U patent/CN209786083U/en active Active
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