CN219917224U - Fuel cell voltage acquisition device - Google Patents
Fuel cell voltage acquisition device Download PDFInfo
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- CN219917224U CN219917224U CN202320756701.2U CN202320756701U CN219917224U CN 219917224 U CN219917224 U CN 219917224U CN 202320756701 U CN202320756701 U CN 202320756701U CN 219917224 U CN219917224 U CN 219917224U
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- fuel cell
- plate
- pcb
- cell voltage
- circuit board
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- Fuel Cell (AREA)
Abstract
The utility model provides a fuel cell voltage acquisition device, which comprises an acquisition module, an adapter plate, a flexible circuit board and a fuel cell stack, wherein the fuel cell stack comprises a plurality of fuel cell units, each fuel cell unit comprises a bipolar plate, and one end of the flexible circuit board is connected with the bipolar plate; the adapter plate is arranged on the fuel cell stack and comprises a PCB and a plurality of wire harness connecting assemblies, the flexible circuit board is connected between the PCB and the bipolar plate, the wire harness connecting assemblies are arranged on the PCB, and the PCB is connected with the acquisition module through the wire harness connecting assemblies. According to the fuel cell voltage acquisition device, the interface of the acquisition module is reduced by arranging the adapter plate, and the occurrence frequency of CVM connection faults is reduced.
Description
Technical Field
The utility model relates to the technical field of voltage acquisition, in particular to a fuel cell voltage acquisition device.
Background
A fuel cell is an electrochemical cell whose main principle is to directly convert chemical energy in fuel and oxidant into electrical energy through oxidation-reduction reaction. Proton Exchange Membrane Fuel Cells (PEMFC) are important branches in the field of fuel cells, and have the general characteristics of fuel cells, such as high energy conversion efficiency, environmental friendliness, high starting speed at room temperature, small volume, long service life, high specific power and specific energy, and the like. This makes the fuel cell well suited for use as a power source for electric vehicles.
The basic structure of the proton exchange membrane fuel cell is mainly composed of a bipolar plate and a membrane electrode, and is formed by connecting hundreds of monomers in series according to the power of the fuel cell, wherein each monomer independently outputs power under the same working environment. In the operation process of the fuel cell, any one fuel cell unit fails and can lead to the reduction of the service life of the whole fuel cell or even damage, so that the voltage detection (CVM, cell Voltage Monitor) of each fuel cell unit is a necessary means for ensuring the normal operation of the fuel cell.
In the prior art, the CVM is connected with the fuel cell unit through the flexible circuit board, but the connecting space of the connecting mode is small, and the operation difficulty is high; the flexible circuit board is directly connected with the CVM data collector, so that excessive interfaces of the CVM data collector can be caused, the fault rate can be increased, the number of interfaces of the collector is limited, the CVM data collector cannot adapt to each power pile, and the expansibility is weak.
Disclosure of Invention
Aiming at the problem that the fault occurrence frequency of a CVM data collector in the existing fuel cell voltage collecting device is increased, the utility model provides the fuel cell voltage collecting device.
The utility model provides a fuel cell voltage acquisition device which comprises an acquisition module, an adapter plate, a flexible circuit board and a fuel cell stack, wherein the fuel cell stack comprises a plurality of fuel cell units, each fuel cell unit comprises a bipolar plate, and one end of the flexible circuit board is connected with the bipolar plate; the adapter plate is arranged on the fuel cell stack and comprises a PCB and a plurality of wire harness connecting assemblies, the flexible circuit board is connected between the PCB and the bipolar plate, the wire harness connecting assemblies are arranged on the PCB, and the PCB is connected with the acquisition module through the wire harness connecting assemblies.
Optionally, first connectors are arranged on the PCB board at intervals along a first direction, the first connectors have jacks, and one end of the flexible circuit board is clamped in the jacks.
Optionally, the adapter plate further includes a first fixing plate, the first fixing plate set up in the PCB board deviates from the one side of fuel cell stack, offer the seal groove on the first fixing plate and be used for dodging the opening of pencil coupling assembling, the seal groove extends along first direction, first connector is located in the seal groove.
Optionally, a sealing ring is arranged on the periphery of the sealing groove.
Optionally, the adapter plate further includes a second fixing plate, the second fixing plate is disposed on the fuel cell stack, the PCB is disposed between the first fixing plate and the second fixing plate, and the PCB and the first fixing plate are respectively connected with the second fixing plate.
Optionally, the wire harness connection assembly includes a wire harness connector and a wire harness, the wire harness connector is disposed on the PCB board, and the wire harness is connected between the wire harness connector and the collection module.
Optionally, the flexible circuit board comprises a connecting plate and a plurality of detection terminal plates, the detection terminal plates are arranged at one end of the connecting plate in a comb-tooth shape, and the detection terminal plates are respectively bonded with the bipolar plate; the connecting plate is electrically connected with the PCB.
Optionally, the detection terminal plate is connected with the bipolar plate through a conductive double faced adhesive tape.
Optionally, the conductive double-sided adhesive tape is coated with a conductive curing adhesive on the periphery, and the conductive curing adhesive is connected between the detection terminal plate and the bipolar plate.
According to the utility model, the flexible circuit board and the acquisition module are connected through the PCB, so that the connection space with the acquisition module is increased, and meanwhile, the acquisition interface of the acquisition module is reduced through the wiring harness connection assembly, and the occurrence frequency of connection faults of the acquisition module is reduced. Through setting up the PCB board and being connected with flexible circuit board for the length of PCB board can be along with the fuel cell pile length variation and change, adapts to the fuel cell pile of each power, and expansibility is strong. The flexible circuit board is connected with the PCB arranged on the fuel cell stack, so that the connecting force is increased, the flexible circuit board is not easy to fall off under the vehicle-mounted condition, and the service life is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of a fuel cell voltage acquisition device according to an embodiment of the present utility model;
fig. 2 is an exploded schematic view of an adapter plate of a fuel cell voltage acquisition device according to an embodiment of the present utility model;
fig. 3 is a schematic structural diagram of a PCB board of a fuel cell voltage acquisition device according to an embodiment of the present utility model;
fig. 4 is a schematic structural view of a first fixing plate of a fuel cell voltage acquisition device according to an embodiment of the present utility model;
fig. 5 is a schematic connection diagram of a flexible circuit board and a bipolar plate of a fuel cell voltage acquisition device according to an embodiment of the present utility model.
Reference numerals in the drawings of the specification are as follows:
1. an acquisition module;
2. a flexible circuit board; 21. a connecting plate; 22. detecting a terminal plate;
3. a fuel cell stack; 31. a bipolar plate;
41. a PCB board; 411. a first connector; 42. a first fixing plate; 421. sealing grooves; 422. an opening; 43. a second fixing plate; 44. a harness connector; 45. a wire harness;
5. conductive double faced adhesive tape; 6. and conductive curing glue.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In order to illustrate the technical scheme of the utility model, the following description is made by specific examples.
As shown in fig. 1 to 5, a fuel cell voltage collecting device according to an embodiment of the present utility model includes a collecting module 1, an adapter plate, a flexible circuit board 2, and a fuel cell stack 3, where the fuel cell stack 3 includes a plurality of fuel cell units, the fuel cell units include a bipolar plate 31, and one end of the flexible circuit board 2 is connected to the bipolar plate 31. The adapter plate is arranged on the fuel cell stack 3, the adapter plate comprises a PCB 41 and a plurality of wire harness connecting assemblies, the flexible circuit board 2 is connected between the PCB 41 and the bipolar plate 31, the plurality of wire harness connecting assemblies are arranged on the PCB 41, and the PCB 41 is connected with the acquisition module 1 through the wire harness connecting assemblies.
In this embodiment, through setting up PCB connection flexible circuit board 2 and collection module 1, increased with collection module 1's connection space, reduced collection module 1's collection interface through setting up pencil coupling assembling simultaneously, reduced collection module 1 and connected the frequency of occurrence of trouble. Through setting up PCB board 41 and being connected with flexible circuit board 2 for the length of PCB board 41 can be along with fuel cell stack 3 length variation and change, adapts to the fuel cell stack 3 of each power, and expansibility is strong. The flexible circuit board 2 is connected with the PCB 41 arranged on the fuel cell stack 3, so that the connecting force is increased, the flexible circuit board 2 is not easy to fall off under the vehicle-mounted condition, and the service life is prolonged.
As shown in fig. 2 and fig. 4, in some embodiments of the present utility model, first connectors 411 are connected to the PCB 41 at intervals along a first direction, the first connectors 411 have sockets, and one end of the flexible circuit board 2 is clamped in the sockets. Through setting up first connector 411, realize the electric connection of flexible circuit board 2 and PCB board 41, flexible circuit board 2 passes through the jack with first connector 411 and realizes the joint, increases the joint strength of flexible circuit board 2 and PCB board 41.
As shown in fig. 2 and fig. 4, in some embodiments of the present utility model, the adapter plate further includes a first fixing plate 42, the first fixing plate 42 is disposed on a surface of the PCB 41 facing away from the fuel cell stack 3, a sealing groove 421 and an opening 422 for avoiding the wire harness connection assembly are formed in the first fixing plate 42, the sealing groove 421 extends along a first direction, and the first connector 411 is located in the sealing groove 421, so that dust prevention is achieved at a connection position between the first connector 411 and the flexible circuit board 2.
In some embodiments of the present utility model, a sealing ring (not shown) is disposed on the periphery of the sealing groove 421, so as to prevent water and dust at the connection between the first connector 411 and the flexible circuit board 2.
As shown in fig. 2 and 3, in some embodiments of the present utility model, the interposer further includes a second fixing plate 43, the second fixing plate 43 is disposed on the fuel cell stack 3, the PCB 41 is disposed between the first fixing plate 42 and the second fixing plate 43, and the PCB 41 and the first fixing plate 42 are respectively connected with the second fixing plate 43, so as to fix the PCB 41.
As shown in fig. 1 and 3, in some embodiments of the present utility model, the harness connection assembly includes a harness connector 44 and a harness 45, the harness connector 44 is disposed on the PCB board 41, and the harness 45 is connected between the harness connector 44 and the acquisition module 1. The data acquisition of the acquisition module 1 is realized by a harness connector 44 and a harness 45.
As shown in fig. 5, in some embodiments of the present utility model, the flexible circuit board 2 includes a connection board 21 and a plurality of detection terminal boards 22, wherein the plurality of detection terminal boards 22 are disposed at one end of the connection board 21 in a comb-tooth shape, and the plurality of detection terminal boards 22 are respectively bonded to the bipolar plate 31. The connection board 21 is electrically connected to the PCB 41. The detection terminal plate 22 reduces the connection points between the flexible circuit board 2 and the bipolar plate 31, so that the number of the contact points for replacement and maintenance is small, and the maintenance is convenient. Meanwhile, the detection terminal plate 22 is adhered to the bipolar plate 31, so that the connection mode is suitable for bipolar plate 31 fuel cells made of various materials, particularly graphite bipolar plate 31 fuel cells, the acquisition module 1 is reliably connected with the bipolar plate 31, and the CVM detection reliability of the fuel cells is improved.
As shown in fig. 5, in some embodiments of the present utility model, the detection terminal plate 22 is connected to the bipolar plate 31 by providing a conductive double sided tape 5, and the connection between the detection terminal plate 22 and the bipolar plate 31 is achieved by the conductive double sided tape 5, so as to avoid damaging the mechanical structure and strength of the bipolar plate 31, and meanwhile, the present utility model has the characteristics of stable connection and good contact.
As shown in fig. 5, in some embodiments of the present utility model, the conductive double-sided tape 5 is peripherally coated with a conductive curing tape 6, and the conductive curing tape 6 is connected between the detection terminal plate 22 and the bipolar plate 31. Specifically, the conductive curing adhesive 6 is a normal temperature fixed phone conductive adhesive, and the contact surface between the detection terminal and the bipolar plate 31 is coated by the conductive curing adhesive 6, so that a stable and reliable contact point is formed between the detection terminal and the bipolar plate 31, and the conductive double-sided adhesive 5 and the conductive curing adhesive 6 are combined in a soft and hard manner, so that the connection reliability between the detection terminal and the bipolar plate 31 is ensured, and meanwhile, the contact point can buffer and release internal stress under the conditions of high temperature and low temperature and vibration to ensure firm contact.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting. Although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some of the technical features thereof can be replaced by equivalents. Such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and are intended to be included in the scope of the present utility model.
Claims (9)
1. The fuel cell voltage acquisition device is characterized by comprising an acquisition module, an adapter plate, a flexible circuit board and a fuel cell stack, wherein the fuel cell stack comprises a plurality of fuel cell units, each fuel cell unit comprises a bipolar plate, and one end of the flexible circuit board is connected with the bipolar plate; the adapter plate is arranged on the fuel cell stack and comprises a PCB and a plurality of wire harness connecting assemblies, the flexible circuit board is connected between the PCB and the bipolar plate, the wire harness connecting assemblies are arranged on the PCB, and the PCB is connected with the acquisition module through the wire harness connecting assemblies.
2. The fuel cell voltage acquisition device according to claim 1, wherein first connectors are arranged on the PCB board at intervals along a first direction, the first connectors are provided with insertion holes, and one end of the flexible circuit board is clamped in the insertion holes.
3. The fuel cell voltage acquisition device according to claim 2, wherein the adapter plate further comprises a first fixing plate, the first fixing plate is arranged on one surface of the PCB, which is away from the fuel cell stack, a sealing groove and an opening for avoiding the wire harness connection assembly are formed in the first fixing plate, the sealing groove extends along a first direction, and the first connector is located in the sealing groove.
4. The fuel cell voltage collecting device according to claim 3, wherein a seal ring is provided at an outer periphery of the seal groove.
5. The fuel cell voltage acquisition device according to claim 3, wherein the adapter plate further comprises a second fixing plate, the second fixing plate is disposed on the fuel cell stack, the PCB plate is disposed between the first fixing plate and the second fixing plate, and the PCB plate and the first fixing plate are respectively connected with the second fixing plate.
6. The fuel cell voltage acquisition device of claim 1 wherein the harness connection assembly comprises a harness connector disposed on the PCB and a harness connected between the harness connector and the acquisition module.
7. The fuel cell voltage acquisition device according to claim 1, wherein the flexible circuit board comprises a connecting plate and a plurality of detection terminal plates, the plurality of detection terminal plates are arranged at one end of the connecting plate in a comb-tooth shape, and the plurality of detection terminal plates are respectively bonded with the bipolar plates; the connecting plate is electrically connected with the PCB.
8. The fuel cell voltage collecting device according to claim 7, wherein the detection terminal plate is connected to the bipolar plate by a conductive double sided tape.
9. The fuel cell voltage collecting device according to claim 8, wherein the conductive double-sided tape is coated with a conductive curing tape on the outer periphery thereof, the conductive curing tape being connected between the detection terminal plate and the bipolar plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320756701.2U CN219917224U (en) | 2023-04-07 | 2023-04-07 | Fuel cell voltage acquisition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320756701.2U CN219917224U (en) | 2023-04-07 | 2023-04-07 | Fuel cell voltage acquisition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219917224U true CN219917224U (en) | 2023-10-27 |
Family
ID=88425717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320756701.2U Active CN219917224U (en) | 2023-04-07 | 2023-04-07 | Fuel cell voltage acquisition device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219917224U (en) |
-
2023
- 2023-04-07 CN CN202320756701.2U patent/CN219917224U/en active Active
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