CN218629949U - Voltage acquisition device of proton exchange membrane fuel cell stack inspection circuit - Google Patents
Voltage acquisition device of proton exchange membrane fuel cell stack inspection circuit Download PDFInfo
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- CN218629949U CN218629949U CN202221265566.3U CN202221265566U CN218629949U CN 218629949 U CN218629949 U CN 218629949U CN 202221265566 U CN202221265566 U CN 202221265566U CN 218629949 U CN218629949 U CN 218629949U
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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
The utility model mainly discloses a proton exchange membrane fuel cell stack patrols and examines voltage acquisition device of circuit, its technical scheme: the device comprises a graphite bipolar plate, a voltage inspection line, an inspection transition circuit board and a side plate; the routing inspection transition circuit board is arranged on the outer surface of the side plate; the voltage inspection line is flexible circuit board, and the one end and the graphite bipolar plate non-working surface contact of voltage inspection line are connected, and the other end is walked around the curb plate and is patrolled and examined the transition circuit board and be connected, and the curb plate internal surface is equipped with the recess, is provided with the elastic strip in the recess, the elastic strip is patrolled and examined the electrically conductive interface crimping of line one end at graphite bipolar plate non-working surface, the voltage inspection line the other end with patrol and examine the transition circuit board and connect, the voltage of each monocell of fuel cell stack is measured in the circulation, such structure can prevent during operation under vibration, great impulsive force environment, the voltage inspection line drops or the displacement leads to the detection line to open circuit. Compared with a single-needle electricity taking structure, the structure is simpler, the maintenance is more convenient, and the production efficiency is improved.
Description
Technical Field
The utility model relates to a hydrogen fuel cell technical field, especially a proton exchange membrane fuel cell stack patrol and examine voltage acquisition device of circuit.
Background
The fuel cell patrol module (CVM) is used for accurately detecting the single cell voltage of the fuel cell stack in real time, analyzing and processing a data group consisting of all the detected single cell voltages in real time, monitoring, diagnosing and storing the single cell state and performance of the hydrogen fuel cell stack, ensuring the stable and reliable operation of the single cell of the fuel cell and improving the high efficiency and reliability of the fuel cell.
The voltage collecting device of the graphite fuel cell bipolar plate inspection circuit is mostly in a probe type, and the probe has a single-needle shape, a row-needle shape and an elastic probe shape. The characteristics of the probes are different: the wiring harness of the single-needle electricity taking structure is scattered, disordered and connected, so that errors are easy to occur, and the production efficiency is low; the row needle-shaped electricity taking structure can provide compression compensation for the galvanic pile in the using process because the carbon paper is a compressible porous material, so that the stacking time distance of the graphite bipolar plate is not fixed, the test pinhole distance is different from the row needle distance, the row needle is deformed, the deformed row needle freely stretches and retracts to form a restraint on the bipolar plate, the stress consistency of a membrane electrode is influenced, the performance of the galvanic pile is influenced, and even the bipolar plate is damaged in severe cases; the elastic probe-shaped electricity taking mechanism enables the probe to be in contact with the polar plate by means of elastic deformation of the probe, the position of the probe is easy to slide away under the environment with large vibration or impact force, and the situations of open circuit, short circuit and the like occur, so that the structure is only limited to static temporary detection of a galvanic pile and cannot be used for an online detection scheme when the galvanic pile works normally, the universality of the elastic probe-shaped electricity taking type probe is poor, and the elastic probe-shaped electricity taking mechanism is a special structure and has high purchasing and manufacturing cost.
If the publication number CN212784027U discloses a link structure and a link terminal for inspecting a conductive spring plate type fuel cell, the product is fixed in a through groove of a bipolar plate through a conductive spring plate inclined part, and the problem that a probe loosens and falls off in the using process is solved.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model provides a proton exchange membrane fuel cell piles voltage acquisition device of patrolling and examining circuit, the device stable in structure, processing technology is simple, easy equipment and disassembling, the component is standardized.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a voltage acquisition device of a proton exchange membrane fuel cell stack inspection circuit,
the device comprises a graphite bipolar plate, a voltage inspection line, an inspection transition circuit board and a side plate;
the inspection transition circuit board is arranged on the outer surface of the side plate;
the voltage inspection line is a flexible circuit board, one end of the voltage inspection line is in contact connection with the non-working surface of the graphite bipolar plate, and the other end of the voltage inspection line is connected with the inspection transition circuit board by bypassing the side plate and is used for circularly monitoring the voltage of each monocell in the use process of the fuel cell stack.
Preferably: the inner surface of the side plate is provided with a groove, an elastic strip is arranged in the groove, and a conductive interface at one end of the voltage inspection line is pressed on the non-working surface of the graphite bipolar plate by the elastic strip.
Preferably: the elastic strip can adopt a rubber strip.
Preferably, the following components: and an insulating diaphragm is arranged between the voltage patrol line and the rubber strip. The insulating diaphragm is attached to the inner surface of the side plate, the voltage inspection line is in press connection with the non-working surface of the bipolar plate or other fixing modes by utilizing the resilience force after the rubber strip is extruded and deformed, and the insulating diaphragm is used for isolating the graphite bipolar plate and the side plate and preventing the bipolar plates at different positions from causing short circuit through contacting the side plate.
Preferably, the following components: the other end of the voltage inspection line is connected with the inspection transition circuit board.
And two ends of the side plate are fixed on the upper end plate and the lower end plate of the fuel cell stack through bolts or other modes.
The utility model discloses it does to have beneficial effect:
adopt above-mentioned structure, through the rubber strip will the electrically conductive interface crimping of voltage inspection line one end is on graphite bipolar plate surface, the voltage inspection line the other end with patrol and examine the transition circuit board and connect, circulate and measure the voltage of each monocell of fuel cell stack, such structure can prevent under vibration, the great impulsive force environment the voltage inspection line drops, avoids the single needle form to get the electric structure equipment difficulty, and production efficiency is low. The embodiment of the utility model provides a simple structure, fuel cell assembles more easily, and production efficiency is higher, and manufacturing cost is lower.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of the present invention showing a part enlarged;
reference numerals: 1. a graphite bipolar plate; 2. voltage polling lines; 3. routing inspection of the transition circuit board; 4. an insulating diaphragm; 5. a rubber strip; 6. and a side plate.
Detailed Description
The preferred embodiments of the present invention will be further described in detail with reference to the accompanying drawings.
The voltage acquisition device of the proton exchange membrane fuel cell stack inspection circuit comprises a graphite bipolar plate 1, a voltage inspection line 2, an inspection transition circuit board 3 and a side plate 6, wherein two ends of the side plate 6 are fixed on an upper end plate and a lower end plate of the fuel cell stack through bolts or other modes. The inspection transition circuit board 3 is arranged on the outer surface of the side plate 6; the voltage inspection line 2 is a flexible circuit board, one end of the voltage inspection line 2 is in contact connection with the non-working surface of the graphite bipolar plate 1, and the other end of the voltage inspection line is connected with the inspection transition circuit board 3 by bypassing the side plate 6. For cyclically monitoring the voltage of each single cell of the fuel cell stack.
The inner surface of the side plate 6 is provided with a groove, an elastic strip is placed in the groove, and the elastic strip can adopt a rubber strip 5. The elastic strip presses a conductive interface at one end of the voltage inspection line 2 on the non-working surface of the graphite bipolar plate 1, and the other end of the voltage inspection line 2 is welded or fixed with the inspection transition circuit board 3.
Set up insulating diaphragm 4 between line 2 and the rubber strip 5 are patrolled to voltage, 6 internal surfaces of the attached curb plate of insulating diaphragm 4 or utilize the elasticity of rubber strip 5, rubber strip 5 is pressed joint is in 2 non-working surface or other fixed modes are patrolled and examined to voltage, insulating diaphragm 4 is used for isolated graphite bipolar plate 1 and curb plate 6, prevents that different positions bipolar plate from leading to the fact the short circuit through contacting curb plate 6.
Adopt above-mentioned structure, through rubber strip 5 will the electrically conductive interface crimping of 2 one ends of voltage patrolling and examining is on graphite bipolar plate 1 surface, the voltage patrolling and examining 2 the other end with the cross-over circuit board 3 of patrolling and examining connect, can cycle measure the voltage of each monocell of fuel cell stack, such structure can prevent to make when having vibration, great impulsive force environment under the use voltage patrols and examines 2 lines drops, avoids the single needle form to get the electrical construction linear speed in disorder and easily makes mistakes, and production efficiency is low. The array needle type electricity taking structure causes the position of a probe to deform due to the inconsistency of the distance between the graphite bipolar plates 1 and the distance between the array needles, the bipolar plates are subjected to the dragging force of the array needles to cause the uneven stress of a membrane electrode, and the performance of a galvanic pile is reduced; get the problem of electricity mechanism probe position slippage under vibration or the great environment of impact force with elastic probe form to and the elastic needle commonality is poor, problem that manufacturing cost is high, the voltage acquisition data of circuit is patrolled and examined to fuel cell to the mechanism formula is more accurate, and bipolar plate manufacturing process is simpler, because of again the embodiment of the utility model provides a simple structure, so fuel cell equipment is easier, and production efficiency is higher, and manufacturing cost is lower.
The above embodiments are only used for explaining the inventive concept of the present invention, and not for limiting the protection of the present invention, and all the modifications that are insubstantial to the present invention using this concept should fall within the protection scope of the present invention.
Claims (5)
1. A voltage acquisition device of a proton exchange membrane fuel cell stack inspection circuit,
the method is characterized in that:
the device comprises a graphite bipolar plate, a voltage inspection line, an inspection transition circuit board and a side plate;
the inspection transition circuit board is arranged on the outer surface of the side plate;
the voltage inspection line is a flexible circuit board, one end of the voltage inspection line is in contact connection with the non-working surface of the graphite bipolar plate, and the other end of the voltage inspection line is connected with the inspection transition circuit board by bypassing the side plate.
2. The voltage acquisition device of the patrol inspection circuit of the proton exchange membrane fuel cell stack according to claim 1, which is characterized in that: the inner surface of the side plate is provided with a groove, an elastic strip is arranged in the groove, and the elastic strip presses a conductive interface at one end of the voltage inspection line on the non-working surface of the graphite bipolar plate.
3. The voltage acquisition device of the patrolling circuit of the proton exchange membrane fuel cell stack according to claim 2, which is characterized in that: the elastic strip can adopt a rubber strip.
4. The voltage acquisition device of the patrol inspection circuit of the proton exchange membrane fuel cell stack according to claim 1, which is characterized in that: and an insulating diaphragm is arranged between the voltage patrol line and the rubber strip.
5. The voltage acquisition device of the inspection circuit of the proton exchange membrane fuel cell stack according to claim 1, characterized in that: the other end of the voltage polling line is connected with the polling transition circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221265566.3U CN218629949U (en) | 2022-05-25 | 2022-05-25 | Voltage acquisition device of proton exchange membrane fuel cell stack inspection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221265566.3U CN218629949U (en) | 2022-05-25 | 2022-05-25 | Voltage acquisition device of proton exchange membrane fuel cell stack inspection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218629949U true CN218629949U (en) | 2023-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221265566.3U Active CN218629949U (en) | 2022-05-25 | 2022-05-25 | Voltage acquisition device of proton exchange membrane fuel cell stack inspection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218629949U (en) |
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2022
- 2022-05-25 CN CN202221265566.3U patent/CN218629949U/en active Active
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