CN207690923U - A kind of fuel cell - Google Patents
A kind of fuel cell Download PDFInfo
- Publication number
- CN207690923U CN207690923U CN201721209473.8U CN201721209473U CN207690923U CN 207690923 U CN207690923 U CN 207690923U CN 201721209473 U CN201721209473 U CN 201721209473U CN 207690923 U CN207690923 U CN 207690923U
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- CN
- China
- Prior art keywords
- fuel cell
- insulation bushing
- public
- bipolar plates
- inlet channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Fuel Cell (AREA)
Abstract
A kind of fuel cell, belongs to field of fuel cell technology, more particularly to enters the temperature control technology of the oxidant or fuel gas of fuel cell in highway；Fuel cell includes：Bipolar plates 100, reaction membrane module；The bipolar plates 100 include flow channel entry point 101, runner 102, runner exit 103, public inlet channel 104, public exhaust passage 105, it is characterized in that：Insulation bushing 200 is provided in public inlet channel 104；The material of the insulation bushing 200 is plastics, ceramics or other poors conductor of heat；After the technical program, since insulation bushing 200 is of low cost, processing and fabricating and installation are easy, and heat insulation is apparent；Temperature rise of the gas in public inlet channel 104 when flowing is can avoid, the performance of fuel cell is effectively improved.
Description
Technical field
The invention belongs to field of fuel cell technology, more particularly into the oxidant of fuel cell or fuel gas in public affairs
With the temperature control technology in channel.
Background technology
As shown in fig. 6, being the conventional structure of prior art fuel cell, fuel cell includes bipolar plates 100 and reaction film
Component, multiple bipolar plates 100 and reaction membrane module are overlapped mutually composition pile；Bipolar plates 100 include flow channel entry point 101, runner
102, runner exit 103, public inlet channel 104, public exhaust passage 105, the public air inlet of all bipolar plates 100 in pile
Channel 104 mutually concatenates, and the public exhaust passage 105 of all bipolar plates 100 mutually concatenates；Air inlet（Including oxidant, fuel gas
Body）It is flowed from above to below along public inlet channel 104, and by the flow channel entry point 101 of each layer bipolar plates 100 into air stream enter runner 102,
Exhaust gas after redox reaction enters public exhaust passage 105 from runner exit 103, is then discharged out pile；Due to pile
Intake air temperature is generally less than pile internal temperature, and when especially with environment temperature air inlet, intake air temperature is differed with stack temperature
It is larger（About 75 DEG C of the temperature of bipolar plates 100, and about 25 DEG C of intake air temperature）, gas is along public inlet channel 104, from bipolar plates
When 100 terminad bipolar plates 100b flowings, by the inner wall heat temperature raising of public inlet channel 104, and entering each layer bipolar plates
When 100, gas temperature streamwise successively increases, and when reaching end bipolar plates 100b, temperature reaches highest, as a result causes
The reaction condition of each tunic component is different, especially the intake air temperature highest of end bipolar plates 100b, it is easier to aggravate membrane module
Drying, cause the decline of generating efficiency.
Since in the prior art, the inner wall of the public inlet channel 104 of bipolar plates 100, usually metal or graphite etc. are led
The good material composition of thermal energy power, temperature are almost equal with the temperature inside pile；For this purpose, someone is by the public affairs of bipolar plates 100
It is designed to High molecular polymer with the inner wall of inlet channel 104, and is combined to form composite dual-electrode plates with bipolar plate flow field part, but
It is that complicated, processing difficulties, cost increase.
Invention content
The purpose of the present invention is：A kind of technical solution overcoming disadvantages mentioned above in the prior art is provided, can effectively be kept away
Exempt from the successively raising of intake air temperature, and simple in structure, handling ease.
To achieve the goals above, fuel cell of the invention includes：Bipolar plates, reaction membrane module；The bipolar plates packet
Public inlet channel, flow channel entry point, runner, runner exit, public exhaust passage are included, it is characterized in that：In public inlet channel
It is provided with insulation bushing.
Further, the outer wall of the insulation bushing is adapted to the inner wall of public inlet channel, and the cross section of insulation bushing
C-shaped in configuration, the c-shaped opening of insulation bushing are corresponding with each flow channel entry point of layer bipolar plates.
Alternatively, the outer wall of the insulation bushing is adapted to the inner wall of public inlet channel, and set on insulation bushing side wall
It is equipped with stomata corresponding with each flow channel entry point of layer bipolar plates.
Further, the cross section of the insulation bushing is gradually reduced from top to bottom.
Further, variable cross-section insulation bushing is provided in public exhaust passage.
Further, the material of the insulation bushing is plastics, ceramics.
After the technical program, since insulation bushing is of low cost, processing and fabricating and installation are easy, and heat insulation is bright
It is aobvious；Temperature rise when gas flows in public inlet channel is can avoid, the performance of fuel cell is effectively improved.
Description of the drawings
Fig. 1, Fig. 2 are the stereoscopic schematic diagrams that insulation bushing is assembled in fuel cell；
Fig. 3 is the stereoscopic schematic diagram of C-shaped insulation bushing；
Fig. 4 is to open up the stereoscopic schematic diagram of stomata in the side wall of insulation bushing；
Fig. 5 is the stereoscopic schematic diagram of variable cross-section insulation bushing；
Fig. 6 is the stereoscopic schematic diagram of prior art fuel cell.
In figure：
Bipolar plates 100, end bipolar plates 100b, flow channel entry point 101, runner 102, runner exit 103, public inlet channel
104, public exhaust passage 105, insulation bushing 200, insulation bushing outer wall 201, c-shaped opening 202, stomata 203, in insulation bushing
Wall 204.
Specific implementation mode
Fig. 1,2 are the embodiment of the present invention, and fuel cell includes：Bipolar plates 100, reaction membrane module；The bipolar plates 100
Including flow channel entry point 101, runner 102, runner exit 103, public inlet channel 104, public exhaust passage 105, it is public into
Insulation bushing 200 is provided in gas channel 104；
Further, the outer wall 201 of the insulation bushing 200 is adapted to the inner wall of public inlet channel 104, and insulation bushing
200 cross section C-shaped in configuration, the c-shaped opening 202 of insulation bushing 200 are opposite with the flow channel entry point 101 of each layer bipolar plates 100
It answers.
Alternatively, the outer wall 201 of the insulation bushing 200 is adapted to the inner wall of public inlet channel 104, and in insulation bushing
Stomata corresponding with the flow channel entry point 101 of each layer bipolar plates 100 203 is provided on 200.
Further, the cross section of the insulation bushing 200 is gradually reduced from top to bottom, as shown in figure 5, insulation bushing 200
Inner wall 204 it is oblique.
Further, in public exhaust passage 105, it is provided with the insulation bushing 200 of cross section gradual change as shown in Figure 5, it can
So that the Uniform gas flow velocity in public exhaust passage 105.
Further, the material of the insulation bushing 200 is plastics, ceramics or other poors conductor of heat.
After the technical program, since insulation bushing 200 is of low cost, processing and fabricating and installation are easy, and heat-insulated effect
Fruit is apparent；Temperature rise of the gas in public inlet channel 104 when flowing is can avoid, the performance of fuel cell is effectively improved.
The present invention is not limited in above-described embodiment, can also carry out various change combination according to the principle of above-described embodiment.
Claims (5)
1. a kind of fuel cell, including：Bipolar plates (100), reaction membrane module；The bipolar plates (100) include flow channel entry point
(101), runner (102), runner exit (103), public inlet channel (104), public exhaust passage (105)；It is characterized in that：
It is provided with insulation bushing (200) in public inlet channel (104).
2. a kind of fuel cell described in accordance with the claim 1, it is characterized in that：The outer wall (201) of insulation bushing (200) with it is public
The inner wall of inlet channel (104) is adapted to, and the cross section C-shaped in configuration of insulation bushing (200), the C-shaped of insulation bushing (200) are opened
Mouth (202) is corresponding with each flow channel entry point (101) of layer bipolar plates (100)；
Alternatively, the outer wall (201) of the insulation bushing (200) is adapted to the inner wall of public inlet channel (104), and in heat shield liner
It is provided with stomata (203) corresponding with each flow channel entry point (101) of layer bipolar plates (100) on set (200).
3. a kind of fuel cell according to claim 2, it is characterized in that：The material of the insulation bushing (200) be plastics,
Ceramics or other poors conductor of heat.
4. according to a kind of fuel cell described in claims 1 or 2 or 3, it is characterized in that：The insulation bushing (200) it is transversal
Face is gradual change.
5. according to a kind of fuel cell described in claims 1 or 2 or 3, it is characterized in that：It is set in public exhaust passage (105)
It is equipped with the insulation bushing (200) of cross section gradual change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721209473.8U CN207690923U (en) | 2017-09-20 | 2017-09-20 | A kind of fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721209473.8U CN207690923U (en) | 2017-09-20 | 2017-09-20 | A kind of fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207690923U true CN207690923U (en) | 2018-08-03 |
Family
ID=62986959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721209473.8U Active CN207690923U (en) | 2017-09-20 | 2017-09-20 | A kind of fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207690923U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020128562A1 (en) | 2020-10-30 | 2022-05-05 | Audi Aktiengesellschaft | Bipolar plate with insertable screen and fuel cell stack |
-
2017
- 2017-09-20 CN CN201721209473.8U patent/CN207690923U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020128562A1 (en) | 2020-10-30 | 2022-05-05 | Audi Aktiengesellschaft | Bipolar plate with insertable screen and fuel cell stack |
| WO2022090143A1 (en) | 2020-10-30 | 2022-05-05 | Audi Ag | Bipolar plate with an insertable diaphragm, and fuel cell stack |
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