CN115015759A - Inspection single chip and inspection device for fuel cell stack detection - Google Patents
Inspection single chip and inspection device for fuel cell stack detection Download PDFInfo
- Publication number
- CN115015759A CN115015759A CN202210112079.1A CN202210112079A CN115015759A CN 115015759 A CN115015759 A CN 115015759A CN 202210112079 A CN202210112079 A CN 202210112079A CN 115015759 A CN115015759 A CN 115015759A
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- Prior art keywords
- inspection
- fuel cell
- cell stack
- mounting bracket
- wall
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/364—Battery terminal connectors with integrated measuring arrangements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/378—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] specially adapted for the type of battery or accumulator
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
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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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fuel Cell (AREA)
Abstract
The invention relates to a single inspection chip and an inspection device for detecting a fuel cell stack. The device comprises an inspection single chip (2) and a mounting bracket (3); the mounting bracket (3) is provided with a plurality of sockets (31), and during inspection, the inspection single sheet (2) is inserted into the sockets (31). The inspection single piece (2) comprises a single piece body and an insert terminal (21); the insert terminal (21) is fixedly arranged on one side of the single-chip body, and the insert terminal (21) is in compression joint with the wire harness; when patrolling and examining, inserted sheet terminal (21) clamp is established between adjacent bipolar plate (1) of fuel cell, pencil with patrol and examine data acquisition mechanism and be connected. Compared with the prior art, the invention has the advantages of good contact with the bipolar plate, strong adaptability, convenient disassembly, good insulating property and the like.
Description
Technical Field
The invention relates to the field of fuel cell detection, in particular to a single polling piece and a polling device for fuel cell stack detection.
Background
The principle of the fuel cell is the reverse reaction of water electrolysis, hydrogen reaches the cathode of the fuel cell through a proton exchange membrane and is chemically reacted with oxygen at the anode, and chemical energy is converted into electric energy through a fuel cell system in the reaction process, so that the purpose of providing the electric energy is achieved.
In the actual use process, a fuel cell stack (hereinafter referred to as a stack) generally consists of several tens of single cells and several hundreds of single cells, and the performance fluctuation of each single cell may affect the performance of the whole stack, and in severe cases, the stack may be damaged. Therefore, the voltage signal of each single cell can be accurately detected, and the reliable and stable operation of the cell stack can be ensured.
The existing inspection can only move in the axis direction of a probe and cannot absorb the tolerance of the length direction of the galvanic pile; when a single probe is in fault in the conventional inspection, the whole inspection system needs to be disassembled, and parts are replaced complicatedly; in the prior art, each probe is internally provided with a spring, and the axial force of the probe is superposed to easily cause the deformation of a mounting bracket; the existing routing inspection method has the defect that the false performance of the galvanic pile is low due to poor contact in the length change process of the galvanic pile caused by thermal expansion and cold contraction.
Disclosure of Invention
The invention aims to overcome at least one of the defects of the prior art and provide an inspection monolithic chip and an inspection device for detecting a fuel cell stack, which have good contact with a bipolar plate, strong adaptability, convenient disassembly and good insulation.
The purpose of the invention can be realized by the following technical scheme:
a single inspection sheet for detecting a fuel cell stack comprises a single sheet body and an insert terminal;
the insert terminal is fixedly arranged on one side of the single-chip body and is in compression joint with the wiring harness; when patrolling and examining, the inserted sheet terminal clamp is established between the adjacent bipolar plate of fuel cell, the pencil with patrol and examine data acquisition mechanism and be connected.
The insert terminal is made of a conductor material and is in a conduction state with the wiring harness. And inserted sheet terminal and pencil crimping are in the same place earlier, then wholly mould plastics in the monolithic is originally internal, can guarantee effectively that adjacent patrols and examines the electrical insulation between the monolithic.
Furthermore, the bipolar plate is provided with a groove, and the insert terminal comprises an end plate and a contact plate which are integrally formed; the contact plate comprises an arc-shaped outer wall expanding towards two ends; when patrolling and examining, arc outer wall and recess butt.
In other words, the natural distance between the two arc-shaped outer walls is larger than the distance between the grooves of the bipolar plate, and the arc-shaped outer walls contact with the inner walls of the grooves and gradually contract in the process of inserting the insert terminals into the grooves.
Furthermore, the contact plate also comprises a wavy inner wall which is integrally connected with the arc-shaped outer wall, and a gap is formed between the two wavy inner walls;
the metal sheet is arranged between the adjacent bipolar plates, and when the bipolar plates are inspected, the two wavy inner walls are respectively abutted against the two sides of the metal sheet.
When the arc outer wall shrinks gradually, the gap between the two wavy inner walls is reduced and is in clamping contact with the embedded metal sheet. At the in-process of pile expend with heat and contract with cold, the condition that the inserted sheet terminal squinted along with reactor core length change can appear, under this condition, because of the inserted sheet terminal is in compression state always, arc outer wall and wave inner wall all with bipolar plate contact well, guaranteed the reliability of patrolling and examining.
Furthermore, the metal sheet is made of 316 stainless steel with gold-plated surface.
Further, the arc-shaped outer wall comprises at least two sub outer walls which are arranged separately from each other.
Furthermore, one side of the single-chip body, which is far away from the inserting piece terminal, is provided with a wire barrel for guiding a wire harness, and the wire harness is inserted into the wire barrel.
An inspection device for detecting a fuel cell stack comprises the inspection single chip and a mounting bracket; the mounting bracket is provided with a plurality of sockets, and during inspection, the inspection single sheet is inserted into the sockets.
Furthermore, bosses are arranged on the upper side and the lower side of the single-piece body, and bayonets matched with the bosses are arranged on the upper side and the lower side of the mounting support.
Due to the arrangement of the bosses, the inspection single chip and the mounting bracket are conveniently assembled and mounted, and the inspection single chip is prevented from being loose in the using process to cause poor contact.
Further, in use, the device is mounted outside of a fuel cell stack.
Further, the installing support outside still include the back lid that will patrol and examine the monolithic restraint, this back lid is connected with the installing support block.
Compared with the prior art, the invention has the following advantages:
(1) the invention only needs to produce the inspection single sheet, and can realize the electric piles with different lengths and different single cell intervals on one hand and realize the logical functions of single sheet detection and multi-sheet detection on the other hand by changing the structure of the mounting bracket, thereby reducing the cost and increasing the adaptability of inspection;
(2) because the injection molding mode is adopted, the electric insulation performance between adjacent routing inspections is good, and the voltage signal is prevented from being influenced by the insulation failure of the adjacent routing inspections under extreme conditions;
(3) according to the invention, each inspection single chip is independent, when one inspection single chip has a problem, only the corresponding inspection single chip needs to be replaced, so that the convenience of later maintenance is improved;
(4) the special insert terminal structure adopted by the invention ensures that the inspection single sheet and the bipolar plate have six contact areas, and even if the position of the galvanic pile deviates under the condition of expansion with heat and contraction with cold, the structure can still keep good contact, thereby improving the stability of detection signals.
Drawings
FIG. 1 is an inspection assembly drawing in the embodiment;
FIG. 2 is a schematic view of an embodiment of a mounting bracket;
FIG. 3 is a diagram of the inspection single chip structure in the embodiment;
FIG. 4 is a top view of an embodiment of a blade terminal;
FIG. 5 is a perspective view of an embodiment blade terminal;
FIG. 6 is a structural view of a bipolar plate in an example;
FIG. 7 is an assembly view of the tab terminal and bipolar plate of an embodiment;
the reference numbers in the figures indicate: the inspection device comprises a bipolar plate 1, a groove 11, a metal sheet 12, an inspection single sheet 2, an insert terminal 21, an arc-shaped outer wall 211, a wavy inner wall 212, an end plate 213, a boss 22, a wire barrel 23, a mounting bracket 3, a socket 31, a rear cover 32 and a bayonet 33.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.
Examples
An inspection device for detecting a fuel cell stack, as shown in fig. 1-2, comprises an inspection single chip 2 and a mounting bracket 3; a plurality of sockets 31 are arranged on the mounting bracket 3, and during inspection, the inspection single sheet 2 is inserted into the sockets 31. When in use, the device is arranged outside the fuel cell stack. The outer side of the mounting bracket 3 also comprises a rear cover 32 for restricting the inspection single chip 2, and the rear cover 32 is connected with the mounting bracket 3 in a clamping way.
As shown in fig. 3, the inspection single chip 2 includes a single chip body and a tab terminal 21; the insert terminal 21 is fixedly arranged on one side of the single-chip body, and the insert terminal 21 is in compression joint with the wire harness; during inspection, the insert piece terminal 21 is clamped between the bipolar plates 1 adjacent to the fuel cell, and the wiring harness is electrically connected with the inspection data acquisition mechanism. The tab terminal 21 is made of a conductive material and is in a conductive state with the wire harness. And inserted sheet terminal 21 and pencil crimping together earlier, then wholly mould plastics in the monolithic body, can guarantee effectively that adjacent patrols and examines the electrical insulation between the monolithic 2. One side of the single-chip body, which is far away from the inserting piece terminal 21, is provided with a wire barrel 23 used for guiding a wire harness, and the wire harness is inserted into the wire barrel 23.
As shown in fig. 4-6, the bipolar plate 1 is provided with a groove 11, and the tab terminal 21 comprises an end plate 213 and a contact plate which are integrally formed; the contact plate includes an arc-shaped outer wall 211 expanding toward both ends; when patrolling, arc outer wall 211 and recess 11 butt. In short, the natural distance between the two arc-shaped outer walls 211 is larger than the distance between the grooves 11 of the bipolar plate, and when the tab terminal 21 is inserted into the groove 11, the arc-shaped outer walls 211 contact with the inner walls of the grooves 11 and gradually contract.
The contact plate also comprises a wavy inner wall 212 which is integrally connected with the arc-shaped outer wall 211, and a gap is formed between the two wavy inner walls 212; the metal sheet 12 is arranged between the adjacent bipolar plates 1, and the two wavy inner walls 212 are respectively abutted against the two sides of the metal sheet 12 during inspection. When the arc-shaped outer wall 211 gradually shrinks, the gap between the two wave-shaped inner walls 212 becomes smaller and is in clamping contact with the embedded metal sheet 12. In the process of the electric pile expanding with heat and contracting with cold, the situation that the insert sheet terminal 21 deviates along with the change of the length of the reactor core can appear, under the situation, because the insert sheet terminal 21 is always in a compression state, the arc outer wall 211 and the wave inner wall 212 are in good contact with the bipolar plate 1, and the inspection reliability is ensured. The metal sheet 12 is made of 316 stainless steel with gold-plated surface. The arc-shaped outer wall 211 includes at least two sub-outer walls arranged separately above and below.
During installation, the installation support 3 corresponding to the groove 11 is designed according to the space and the number of the monocells, the installation support 3 is fixed on two sides of a stack end plate through bolts, then the inspection single piece 2 is inserted into the corresponding socket 31, and the inspection single piece 2 is clamped and fixed with the installation support 3 through the upper boss 22 and the lower boss 22; finally, the rear cover 32 is installed, so that the situation that the boss 22 is loosened when in failure is prevented, and the inspection reliability is further improved; when the inspection is required to be replaced, only the corresponding inspection single sheet 2 is required to be replaced, and the operation is simple and convenient.
In the invention, the insert terminal 21 is inserted into the bipolar plate groove 11, and the insert terminal 21 is always kept in good contact with the metal sheet 12 by the elastic force generated by the deformation of the insert terminal 21. According to the invention, the insert terminal 21 and the wiring harness are firstly pressed together and then integrally injected into the single chip body, so that the electrical insulation between the adjacent inspection single chips 2 can be effectively ensured. The bosses 22 are arranged on the upper side and the lower side of the single chip body, so that the single chip body is convenient to assemble and install with the installation bracket 3, and poor contact caused by looseness of the inspection single chip 2 in the using process is prevented. The invention adopts the inspection single sheet 2 and the mounting bracket 3 to be assembled and used, and can be suitable for electric piles with different lengths by changing the gap and the length of the socket 31 of the mounting bracket 3.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.
Claims (10)
1. A single inspection piece for detecting a fuel cell stack is characterized in that the single inspection piece (2) comprises a piece body and an insert terminal (21);
the insert terminal (21) is fixedly arranged on one side of the single-chip body, and the insert terminal (21) is in compression joint with the wire harness; when patrolling and examining, inserted sheet terminal (21) clamp is established between adjacent bipolar plate (1) of fuel cell, pencil with patrol and examine data acquisition mechanism and be connected.
2. The inspection single sheet for detecting the fuel cell stack according to claim 1, wherein the bipolar plate (1) is provided with a groove (11), and the insert terminal (21) comprises an end plate (213) and a contact plate which are integrally formed; the contact plate comprises an arc-shaped outer wall (211) expanding towards two ends; when in inspection, the arc outer wall (211) is abutted against the groove (11).
3. The inspection single sheet for inspecting the fuel cell stack according to claim 2, wherein the contact plate further comprises a wavy inner wall (212) integrally connected with the arc-shaped outer wall (211), and a gap is formed between the wavy inner wall (212);
a metal sheet (12) is arranged between the adjacent bipolar plates (1), and during inspection, the two wavy inner walls (212) are respectively abutted against the two sides of the metal sheet (12).
4. The inspection single sheet for inspecting the fuel cell stack according to claim 3, wherein the metal sheet (12) is made of 316 stainless steel with gold-plated surface.
5. The inspection single sheet for inspecting the fuel cell stack according to claim 2, wherein the arc-shaped outer wall (211) comprises at least two sub-outer walls which are arranged separately from each other.
6. The inspection monolithic for detecting the fuel cell stack according to claim 1, wherein a wire barrel (23) for guiding a wire harness is arranged on one side of the monolithic body away from the insert terminal (21), and the wire harness is inserted into the wire barrel (23).
7. An inspection device for inspecting a fuel cell stack, characterized in that it comprises an inspection chip (2) according to any one of claims 1 to 6 and a mounting bracket (3); the mounting bracket (3) is provided with a plurality of sockets (31), and during inspection, the inspection single sheet (2) is inserted into the sockets (31).
8. The inspection device according to claim 7, wherein bosses (22) are provided on upper and lower sides of the single chip body, and bayonets (33) matching with the bosses (22) are provided on upper and lower sides of the mounting bracket (3).
9. The inspection device according to claim 7, wherein the inspection device is mounted outside the fuel cell stack during use.
10. The inspection device for detecting the fuel cell stack according to claim 7 or 9, wherein the outer side of the mounting bracket (3) further comprises a rear cover (32) for restraining the inspection single sheet (2), and the rear cover (32) is connected with the mounting bracket (3) in a clamping manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210112079.1A CN115015759A (en) | 2022-01-28 | 2022-01-28 | Inspection single chip and inspection device for fuel cell stack detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210112079.1A CN115015759A (en) | 2022-01-28 | 2022-01-28 | Inspection single chip and inspection device for fuel cell stack detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115015759A true CN115015759A (en) | 2022-09-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210112079.1A Pending CN115015759A (en) | 2022-01-28 | 2022-01-28 | Inspection single chip and inspection device for fuel cell stack detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115015759A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115561489A (en) * | 2022-09-29 | 2023-01-03 | 中汽创智科技有限公司 | Electric pile inspection device |
| CN116577660A (en) * | 2023-07-13 | 2023-08-11 | 深圳市万联新能科技有限公司 | Battery inspection device |
-
2022
- 2022-01-28 CN CN202210112079.1A patent/CN115015759A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115561489A (en) * | 2022-09-29 | 2023-01-03 | 中汽创智科技有限公司 | Electric pile inspection device |
| CN116577660A (en) * | 2023-07-13 | 2023-08-11 | 深圳市万联新能科技有限公司 | Battery inspection device |
| CN116577660B (en) * | 2023-07-13 | 2023-09-12 | 深圳市万联新能科技有限公司 | Battery inspection device |
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