CN220305469U - Online internal resistance detection device of fuel cell - Google Patents
Online internal resistance detection device of fuel cell Download PDFInfo
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- CN220305469U CN220305469U CN202321676880.5U CN202321676880U CN220305469U CN 220305469 U CN220305469 U CN 220305469U CN 202321676880 U CN202321676880 U CN 202321676880U CN 220305469 U CN220305469 U CN 220305469U
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- relay
- internal resistance
- fuel cell
- temperature
- line internal
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- 239000000446 fuel Substances 0.000 title claims abstract description 63
- 238000001514 detection method Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 claims description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
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- Fuel Cell (AREA)
Abstract
The utility model discloses an online internal resistance detection device of a fuel cell, which relates to the technical field of online internal resistance detection of the fuel cell, and comprises a fuel cell system, a temperature control module, an online internal resistance instrument and five relays, wherein the five relays comprise a relay 1, a relay 2, a relay 3, a relay 4 and a relay 5, the temperature sensor module collects the temperature of the fuel cell and judges whether the current temperature reaches a temperature threshold value of the working temperature of the online internal resistance instrument or not through collecting temperature data, when the collected temperature data is within a designed temperature threshold value range, the online internal resistance instrument starts to work, and otherwise, the internal resistance instrument does not work. The on-line internal resistance meter realizes the on-off of the relay through the temperature control switch during the work, realizes the signal acquisition and recording, does not need the manual control of the temperature and the manual operation of the fuel cell during the off-line, and the automatic temperature control and the automatic acquisition of the on-line internal resistance of the fuel cell greatly improve the safe reliability of the operation and are convenient for the operation.
Description
Technical Field
The utility model relates to the technical field of online internal resistance detection of fuel cells, in particular to an online internal resistance detection device of a fuel cell.
Background
In order to analyze the performance of the fuel cell stack, realize the on-line internal resistance detection of the fuel cell, better understand the voltage change of the fuel cell, and realize the more accurate detection of the internal resistance of the fuel cell by needing an external resistor of the fuel cell.
At present, the detection of the internal resistance of the fuel cell is to acquire resistance data manually and regularly, and the online internal resistance of the fuel cell has a certain relation with the current temperature of the fuel cell, and the higher the temperature is, the smaller the internal resistance of the fuel cell is. On the premise of keeping the temperature of the fuel cell consistent, comparing the change of the internal resistance, and further analyzing the change of the voltage of the fuel cell. The internal resistance is collected artificially, so that the internal resistance of the fuel cell can be detected only on the premise that the fuel cell does not operate and is powered off in order to ensure personal safety; the temperature of the fuel cell is kept consistent, the performance analysis of the electric pile can be better carried out through the internal resistance change of the fuel cell, but the temperature of the fuel cell is kept consistent by people, and the internal resistance meter of the fuel cell of the temperature control switch is designed according to the situation.
Disclosure of Invention
The utility model aims to provide an on-line internal resistance detection device of a fuel cell, so as to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the on-line internal resistance detection device of the fuel cell comprises a fuel cell system, a temperature control module, an on-line internal resistance meter and a relay, wherein the temperature control module comprises a temperature sensor, a temperature control switch is arranged on the relay, five relays are arranged, and each relay comprises a relay 1, a relay 2, a relay 3, a relay 4 and a relay 5;
the output end of the temperature control module is respectively connected with the input ends of the relay 1 and the relay 2, the output end of the relay 1 and the output end of the relay 2 are respectively connected with the input ends of the online internal resistance meter, the output ends of the online internal resistance meter are respectively connected with the input ends of the relay 4 and the relay 5, the output ends of the relay 4 and the relay 5 are respectively connected with the fuel cell system, and the output end and the input end of the relay 3 are respectively connected with the two output ends of the online internal resistance meter.
Preferably, the temperature sensor module collects the temperature of the fuel cell and judges whether the current temperature reaches the working temperature threshold of the on-line internal resistance meter by collecting temperature data.
Preferably, the collected temperature data is within a designed temperature threshold range, and the online internal resistance instrument starts to work.
Preferably, the acquired temperature data is not in the designed temperature threshold range, and the online internal resistance instrument does not work.
Preferably, the on-line internal resistance instrument realizes the on-off of the relay through the temperature control switch during operation, and realizes signal acquisition and recording.
Preferably, when the relay 1, the relay 2 and the relay 3 are closed, the self-checking process of the on-line internal resistance meter is realized.
Preferably, after the on-line internal resistance meter self-tests, the relay 3 is opened, the relay 1, the relay 2, the relay 4 and the relay 5 are closed, the on-line internal resistance of the fuel cell is tested, and the current temperature of the fuel cell is recorded.
The utility model has the technical effects and advantages that:
1. in the utility model, the internal resistance of the fuel cell is detected, the temperature of the fuel cell is controlled to be carried out under a certain condition during off-line detection, the hydrogen-related high voltage of the fuel cell is carried out on the premise that no high or low voltage is ensured during the test, and the operation is not careless, so that the utility model does not need to manually control the temperature of the fuel cell and manually operate, and the automatic temperature control and the automatic acquisition of the internal resistance of the fuel cell on line greatly improve the safe reliability of the operation and is convenient for the operation.
Drawings
Fig. 1 is a schematic diagram of the internal resistance detection structure of the fuel cell of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides an on-line internal resistance detection device of a fuel cell as shown in fig. 1, which comprises a fuel cell system, a temperature control module, an on-line internal resistance meter and a relay, wherein the temperature control module comprises a temperature sensor, a temperature control switch is arranged on the relay, and five relays are arranged and comprise a relay 1, a relay 2, a relay 3, a relay 4 and a relay 5;
the output end of the temperature control module is respectively connected with the input ends of the relay 1 and the relay 2, the output end of the relay 1 and the output end of the relay 2 are respectively connected with the input ends of an on-line internal resistance meter, the output ends of the on-line internal resistance meter are respectively connected with the input ends of the relay 4 and the relay 5, the output ends of the relay 4 and the relay 5 are respectively connected with a fuel cell system, and the output end and the input end of the relay 3 are respectively connected between the two output ends of the on-line internal resistance meter.
The temperature sensor module collects the temperature of the fuel cell and judges whether the current temperature reaches the working temperature threshold of the on-line internal resistance meter through collecting temperature data.
The collected temperature data is within the designed temperature threshold range, and the online internal resistance instrument starts to work.
The acquired temperature data is not in the designed temperature threshold range, and the on-line internal resistance meter does not work.
When the on-line internal resistance meter works, the relay is switched on and off through the temperature control switch, and signal acquisition and recording are realized.
And when the relay 1, the relay 2 and the relay 3 are closed, the self-checking process of the on-line internal resistance meter is realized.
After the on-line internal resistance meter self-tests, the relay 3 is opened, the relay 1, the relay 2, the relay 4 and the relay 5 are closed, the on-line internal resistance of the fuel cell is tested, and the current temperature of the fuel cell is recorded.
Working principle: and controlling whether the temperature is working or not, and when the temperature of the collected fuel cell is between 49 ℃ and 51 ℃, the online internal resistance instrument works, and the online internal resistance instrument does not work in the temperature range. The specific method for the internal resistance instrument during operation is as follows: the water temperature of the fuel cell is collected through the fuel cell temperature sensor module, when the temperature is between 49 ℃ and 51 ℃, the relay 1, the relay 2 and the relay 3 are closed, self-checking is carried out on the internal resistance, the self-checking value of the internal resistance meter is smaller than 0.08mΩ (wherein the self-checking process is controlled within 15 seconds), the relay 3 is immediately opened after the self-checking is passed, the relay 4 and the relay 5 are closed, the on-line internal resistance of the fuel cell is tested, and the self-checking data and the internal resistance detection data of the fuel cell are recorded.
Claims (7)
1. The utility model provides a fuel cell on-line internal resistance detection device, includes fuel cell system, temperature control module, on-line internal resistance appearance and relay, its characterized in that: the temperature control module comprises a temperature sensor, a temperature control switch is arranged on the relay, five relays are arranged, and each relay comprises a relay 1, a relay 2, a relay 3, a relay 4 and a relay 5;
the output end of the temperature control module is respectively connected with the input ends of the relay 1 and the relay 2, the output end of the relay 1 and the output end of the relay 2 are respectively connected with the input ends of the online internal resistance meter, the output ends of the online internal resistance meter are respectively connected with the input ends of the relay 4 and the relay 5, the output ends of the relay 4 and the relay 5 are respectively connected with the fuel cell system, and the output end and the input end of the relay 3 are respectively connected with the two output ends of the online internal resistance meter.
2. The fuel cell on-line internal resistance detection device according to claim 1, wherein: the temperature sensor collects the temperature of the fuel cell and judges whether the current temperature reaches the working temperature threshold of the on-line internal resistance meter or not through collecting temperature data.
3. The fuel cell on-line internal resistance detection device according to claim 2, wherein: and the collected temperature data is within a designed temperature threshold range, and the online internal resistance instrument starts to work.
4. The fuel cell on-line internal resistance detection device according to claim 2, wherein: the acquired temperature data is not in the designed temperature threshold range, and the online internal resistance instrument does not work.
5. The fuel cell on-line internal resistance detection device according to claim 1, wherein: when the on-line internal resistance meter works, the on-off of the relay is realized through the temperature control switch, and signal acquisition and recording are realized.
6. The fuel cell on-line internal resistance detection device according to claim 1, wherein: and when the relay 1, the relay 2 and the relay 3 are closed, the self-checking process of the on-line internal resistance meter is realized.
7. The fuel cell on-line internal resistance detection device according to claim 6, wherein: after the on-line internal resistance meter self-tests, the relay 3 is opened, the relay 1, the relay 2, the relay 4 and the relay 5 are closed, the on-line internal resistance of the fuel cell is tested, and the current temperature of the fuel cell is recorded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321676880.5U CN220305469U (en) | 2023-06-29 | 2023-06-29 | Online internal resistance detection device of fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321676880.5U CN220305469U (en) | 2023-06-29 | 2023-06-29 | Online internal resistance detection device of fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220305469U true CN220305469U (en) | 2024-01-05 |
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ID=89348454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321676880.5U Active CN220305469U (en) | 2023-06-29 | 2023-06-29 | Online internal resistance detection device of fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220305469U (en) |
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2023
- 2023-06-29 CN CN202321676880.5U patent/CN220305469U/en active Active
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