CN213600744U - Fuel cell monolithic test fixture - Google Patents
Fuel cell monolithic test fixture Download PDFInfo
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- CN213600744U CN213600744U CN202022259148.0U CN202022259148U CN213600744U CN 213600744 U CN213600744 U CN 213600744U CN 202022259148 U CN202022259148 U CN 202022259148U CN 213600744 U CN213600744 U CN 213600744U
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Abstract
The utility model discloses a single fuel cell testing clamp, belonging to the field of fuel cells, which comprises two clamping block components which are connected by a connecting piece and one sides of which are close to each other, wherein each clamping block component is provided with a working electrode; a flow channel is arranged on one side, close to each other, of each of the two clamping block assemblies, and a hydrogen energy source reactor reaction layer is clamped between the two clamping block assemblies corresponding to the position of the flow channel; and one side of each of the two clamping block assemblies, which deviates from the flow channel, is respectively provided with at least one reference electrode at intervals and in an insulating manner, each reference electrode is provided with a conductive wire of which the surface is provided with an insulating layer, and one end of each conductive wire extends to be electrically connected with one side of the hydrogen energy source reactor reaction layer, which is close to the conductive wire. The method can acquire traditional power data and data of a reactor reaction center in the same test, and the result of comparing the two data can visually know the electrochemical activity of a proton exchange membrane in a hydrogen energy reactor reaction layer.
Description
Technical Field
The utility model belongs to the fuel cell field especially relates to a fuel cell monolithic test fixture.
Background
The core of the hydrogen energy fuel cell generator is a hydrogen energy pile, the core of the hydrogen energy pile is an electrochemical reaction part in the pile, namely a proton exchange membrane reaction layer (a hydrogen energy pile reaction layer), and the conversion rate of electric energy of the proton exchange membrane reaction layer in the electrochemical conversion of hydrogen and oxygen directly influences the effective power of the whole pile system. The electrochemical activity of proton exchange membranes is often tested by using a single-chip test fixture for fuel cells on the market. The defects and shortcomings of the prior art are as follows: at present, a plurality of monolithic test fixtures specially used for detecting the electrochemical activity of the proton exchange membrane are available in the market, but parameters such as voltage and current measured in the test process are data after passing through a carbon plate, a current collecting plate, an insulating layer, a copper bar and the like, so that the real reaction parameters and the effective reaction area of the proton exchange membrane in the galvanic pile cannot be collected, and the authenticity and the validity of the test result are uncertain.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problem, an object of the present invention is to provide a fuel cell single-chip testing jig with a reference electrode.
The utility model realizes the purpose through the following technical proposal that the fuel cell single-chip testing clamp comprises two clamping block components which are connected through a connecting piece and one sides of which are close to each other, and each clamping block component is respectively provided with a working electrode;
a flow channel is arranged on one side, close to each other, of each of the two clamping block assemblies, and a hydrogen energy source reactor reaction layer is clamped between the two clamping block assemblies corresponding to the position of the flow channel;
two the clamp splice subassembly deviates from one side of runner is interval and insulated installation respectively has at least one reference electrode, just reference electrode has a surface and is equipped with the conducting wire of insulating layer, just one end of conducting wire extend to with one side electricity that hydrogen energy source pile reaction layer is close to it is connected, the other end of conducting wire extends to wear out to correspond outside the clamp splice subassembly.
Preferably, the clamp splice subassembly includes carbon plate and end plate, the runner sets up one side of carbon plate, the end plate is located and corresponds the opposite side of carbon plate, and fill up between the two and be equipped with first insulating piece and electrode board, just the electrode board is located between first insulating piece and the carbon plate.
Preferably, the reference electrode further comprises a sealing ring, an insulating block and a hollow bolt;
the end plate is provided with screw holes penetrating through two sides of the end plate, the carbon plate is provided with counter bores penetrating through two sides of the carbon plate and communicated with the corresponding flow channels, the number of the screw holes and the number of the counter bores are consistent with the number of the reference electrodes positioned on the carbon plate and respectively correspond to one another one by one, and the screw holes on the end plate are aligned with the corresponding counter bores on the corresponding carbon plate; the thick ends of the counter bores on the two carbon plates face to opposite directions and penetrate through the electrode plate and the first insulating sheet close to the counter bores;
the sealing ring is arranged at the bottom of the thick end corresponding to the counter bore, the insulating block is arranged in the counter bore, and one end of the insulating block, which is close to the carbon plate, extends into the corresponding screw hole;
the hollow bolt is installed in the corresponding screw hole in a threaded manner, and is screwed down to extrude the corresponding insulating block and tightly press the corresponding sealing ring;
one end of the conducting wire penetrates through the inner holes corresponding to the insulating block and the sealing ring from the inner hole of the hollow bolt and extends to be electrically connected with the hydrogen energy source reactor reaction layer from the thin end corresponding to the counter bore.
Preferably, the core material of the conductive wire is a platinum wire.
Preferably, the insulation block is made of polytetrafluoroethylene material.
Preferably, the sealing ring is a nitrile washer.
Preferably, the connecting piece include many bolts and a plurality of with the nut of bolt one-to-one, many the screw thread end of bolt runs through two in proper order along left right direction the edge of end plate and two carbon plates, every the screw thread end fastening of bolt is one the nut.
Preferably, the middle parts of the sides of the two end plates, which are far away from each other, are respectively provided with a groove, the screw hole is positioned at the groove bottom corresponding to the groove, and one end of the hollow bolt, which is far away from the threaded end of the hollow bolt, is positioned in the corresponding groove;
two one side that the end plate kept away from each other is equipped with a second insulating piece respectively, the second insulating piece will correspond on the end plate the notch of recess is covered.
Preferably, the middle parts of the two sides of the second insulating sheets far away from each other are respectively provided with a layer of heating sheet.
The beneficial effects of the utility model reside in that: the utility model provides a take fuel cell monolithic test fixture of reference electrode can gather traditional power data in same test, can also gather the data of galvanic pile reaction center, the result of contrasting two kinds of data can have an audio-visual understanding to proton exchange membrane's electrochemical activity in the hydrogen energy galvanic pile reaction layer, the reaction efficiency to the catalyst in the proton exchange membrane can more accurate calculation, be favorable to confirming the energy loss source, for example, the voltage current that working electrode output voltage electric current than the reference electrode output descends too much, explain that electric power has very big loss in the conduction process, through determining that calorific capacity of each position can confirm which structure is great to the loss of electric power and optimize and improve; in addition, according to the difference of the positions of the reference electrodes, the reaction state of the hydrogen-oxygen fuel in the cell can be intuitively reflected, for example, relative to the reference electrode at the inlet of the flow channel, the current and voltage of the reference electrode at the middle part of the flow channel are in a reduced state but the overall power requirement of the cell reaches the standard, which indicates that the electrochemical reaction is higher, so that the length of the flow channel on the carbon plate can be reduced, the area of the carbon plate is reduced, the volume is reduced, or the pressure of a hydrogen pressure bottle and an oxygen pressure bottle is reduced.
Drawings
FIG. 1 is a schematic diagram of a single-piece testing fixture for a fuel cell according to an embodiment of the present invention;
FIG. 2 is an assembly view of a fuel cell monolithic test fixture according to an embodiment of the present invention;
fig. 3 is an enlarged view of the reference electrode at a in fig. 2.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", "electrically connected", and the like are to be understood in a broad sense, such as "electrically connected", either as a fixed connection between conductive materials or as a contact between conductive materials. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The embodiment provides a fuel cell single-chip testing clamp which comprises two clamping block assemblies 1 which are connected through a connecting piece 2, wherein one sides of the clamping block assemblies 1 are close to each other, and each clamping block assembly 1 is provided with a working electrode;
a flow channel 111 is arranged on one side, close to each other, of each of the two clamping block assemblies 1, and a hydrogen energy source reactor reaction layer 3 is clamped between the two sides, corresponding to the flow channel (wherein the hydrogen energy source reactor reaction layer seals both the two flow channels after being clamped);
at least one reference electrode 4 is respectively installed at one side of each of the two clamp block assemblies 1 departing from the flow channel 111 at intervals and in an insulating manner, the reference electrode 4 is provided with a conductive wire 41 (the end parts of the two ends of the conductive wire core material are exposed), the surface of which is provided with an insulating layer, one end of the conductive wire 41 extends to be electrically connected with one side of the hydrogen energy source reactor reaction layer close to the conductive wire 41, and the other end of the conductive wire 41 extends to penetrate out of the clamp block assembly 1. The structure of the installation cavity is matched with the shape of the hydrogen energy source electric reactor reaction layer, so that the hydrogen energy source electric reactor reaction layer can be firmly installed and limited in the installation cavity, wherein the two clamping block assemblies are respectively provided with an air inlet (for introducing hydrogen and air) and an air outlet (for removing gas after combustion) which are communicated with the installation cavity, and the two clamping block assemblies are respectively provided with a working electrode (respectively an anode and a cathode).
Preferably, the clamping block assembly 1 includes a carbon plate 11 and an end plate 12, the flow channel 111 is disposed on one side of the carbon plate 11, the end plate 12 is disposed on the other side of the carbon plate 11, and a first insulating sheet 13 and an electrode plate 15 (the electrode plate constitutes a working electrode) are disposed between the two, and the electrode plate 15 is disposed between the first insulating sheet 13 and the carbon plate 11.
Preferably, the reference electrode 4 further comprises a sealing ring 42, an insulating block 43 and a hollow bolt 44;
the end plate 12 is provided with screw holes penetrating through two sides of the end plate, the carbon plate 11 is provided with counter bores penetrating through two sides of the carbon plate and communicated with the corresponding flow channels 111, the number of the screw holes and the number of the counter bores are consistent with the number of the reference electrodes 4 positioned on the end plate and are respectively in one-to-one correspondence, and the screw holes on the end plate 12 are aligned with the corresponding counter bores on the corresponding carbon plate 11; the thick ends of the counter bores on the two carbon plates 11 face to opposite directions and penetrate through the electrode plate 15 and the first insulating sheet 13 close to the two carbon plates;
the sealing ring 42 is arranged at the bottom of the thick end corresponding to the counterbore, the insulating block 43 is arranged in the counterbore, and one end of the insulating block, which is close to the carbon plate 11, extends into the corresponding counterbore (wherein the cross section of the insulating block is consistent with that of the thick end of the counterbore, so that the insulating block is densely filled in the counterbore, and the depth of the end, which is close to the carbon plate 11, of the insulating block, which just extends into the corresponding counterbore is preferably 1 mm);
the hollow bolt 44 is installed in the corresponding screw hole in a threaded manner, the hollow bolt 44 is screwed down to enable the threaded end of the hollow bolt to be in contact with the insulation block 43, the insulation block 43 is pressed to move towards the counter bore, and the sealing ring 42 is further pressed to be in close contact with the bottom of the thick end of the counter bore and is sealed and blocked together with the insulation block;
one end of the conductive wire 41 passes through the inner holes corresponding to the insulating block 43 and the sealing ring 42 from the inner hole of the hollow bolt 44 and extends to the thin end corresponding to the counter bore to be electrically connected with the hydrogen energy reactor reaction layer 3, preferably, the conductive wire penetrates through the insulating block and is integrally connected with the insulating block, namely, the insulating block is positioned on the conductive wire, and two ends of the conductive wire protrude out of the insulating block.
Preferably, the core material of the conductive wire 41 is a platinum wire (which has excellent conductivity).
Preferably, the insulation block 43 is made of teflon.
Preferably, the sealing ring 42 is a nitrile gasket.
Preferably, the connecting member 2 includes a plurality of bolts 21 and a plurality of nuts 22 corresponding to the bolts 21 one by one, and a plurality of the threaded ends of the bolts 21 sequentially penetrate through two of the edges of the end plate 12, the two first insulating sheets 13, the two electrode plates 15 and the two carbon plates 11 in the left-right direction, and each of the threaded ends of the bolts 21 is fastened with one of the nuts 22.
Preferably, the middle parts of the sides of the two end plates 12 far away from each other are respectively provided with a groove 121, the screw holes are located at the groove bottom corresponding to the groove 121, and the ends of the hollow bolts 44 far away from the threaded ends thereof are located in the corresponding grooves 121;
two one sides that the end plate 12 kept away from each other are equipped with a second insulating piece 14 respectively, second insulating piece 14 will correspond on the end plate 12 the notch of recess 121 covers.
Preferably, the middle parts of the sides of the two second insulation sheets 14 away from each other are respectively provided with a layer of heating sheet (so that the temperature of the fuel cell single sheet test fixture can be raised by heating the heating sheets at 0 ℃ and below so as to enable the fuel cell single sheet test fixture to work normally).
The first insulating sheet and the second insulating sheet can adopt pp insulating sheets, the first insulating sheet is provided with an opening at the corresponding position of each reference electrode to allow the reference electrode to penetrate through, specifically, the bolt, the nut and the end plate need to be subjected to insulating treatment, if the diameter of a small hole on the end plate for the bolt to penetrate through is larger than that of the rod part of the bolt, the rod part of the bolt is not contacted with the end plate, an insulating hard ring is arranged between the nut and the end plate close to the nut in a diameter pad mode, and similarly, an insulating hard ring can also be arranged between one end, far away from the threaded end of the bolt, and the end plate close to the bolt in a pad mode.
The difference between the present embodiment and the prior art is that reference electrodes are respectively mounted on two clamping block assemblies, preferably, each of the clamping block assemblies is provided with a plurality of reference electrodes, and the distribution positions of the reference electrodes are not fixed, for example, two ends of each flow channel 111 can be respectively provided with one reference electrode, and the middle of the flow channel 111 is provided with a plurality of reference electrodes at intervals, each of the carbon plates 11 is respectively provided with an air inlet connector 5 and an air outlet connector 6, the air inlet connector 5 is communicated with one end corresponding to the flow channel 111, and the air outlet connector 6 is communicated with the other end corresponding to the flow channel 111.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (9)
1. The fuel cell single-chip testing clamp is characterized by comprising two clamping block assemblies (1) which are connected through a connecting piece (2) and one sides of the clamping block assemblies are close to each other, and each clamping block assembly (1) is provided with a working electrode;
a flow channel (111) is arranged on one side, close to each other, of each of the two clamping block assemblies (1), and a hydrogen energy pile reaction layer (3) is clamped between the two clamping block assemblies corresponding to the flow channel;
two clamp splice subassembly (1) deviates from one side of runner (111) is the interval respectively and insulated mounting has at least one reference electrode (4), just reference electrode (4) have a surface and are equipped with conducting wire (41) of insulating layer, just the one end of conducting wire (41) extend to with hydrogen energy pile reaction layer (3) are close to its one side electricity and are connected, the other end of conducting wire (41) extends to and wears out to correspond outside clamp splice subassembly (1).
2. The fuel cell single chip test fixture according to claim 1, wherein the clamping block assembly (1) comprises a carbon plate (11) and an end plate (12), the flow channel (111) is disposed on one side of the carbon plate (11), the end plate (12) is disposed on the other side corresponding to the carbon plate (11), a first insulating sheet (13) and an electrode plate (15) are padded therebetween, and the electrode plate (15) is disposed between the first insulating sheet (13) and the carbon plate (11).
3. The fuel cell monolithic test fixture according to claim 2, wherein the reference electrode (4) further comprises a seal ring (42), an insulating block (43), and a hollow bolt (44);
screw holes penetrating through two sides of the end plate (12) are formed in the end plate (12), counter bores penetrating through two sides of the carbon plate (11) and communicated with the corresponding flow channels (111) are formed in the carbon plate, the number of the screw holes and the number of the counter bores are identical to the number of the reference electrodes (4) positioned on the end plate and correspond to the counter bores one by one respectively, and the screw holes in the end plate (12) are aligned with the corresponding counter bores in the carbon plate (11); the thick ends of the counter bores on the two carbon plates (11) face to the opposite direction and penetrate through the electrode plate (15) and the first insulating sheet (13) close to the counter bores;
the sealing ring (42) is arranged at the bottom of the thick end corresponding to the counter bore, the insulating block (43) is arranged in the counter bore, and one end of the insulating block, which is close to the carbon plate (11), extends into the corresponding screw hole;
the hollow bolt (44) is installed in the corresponding screw hole in a threaded mode, the hollow bolt (44) is screwed down to extrude the corresponding insulating block (43) and press the corresponding sealing ring (42);
one end of the conducting wire (41) penetrates through the inner holes corresponding to the insulating block (43) and the sealing ring (42) from the inner hole of the hollow bolt (44) and extends to be electrically connected with the hydrogen energy source reactor reaction layer (3) from the thin end corresponding to the counter bore.
4. The fuel cell slice test fixture of claim 3, wherein the core of the conductive wire (41) is a platinum wire.
5. The fuel cell slice test fixture according to claim 3, wherein said insulating blocks (43) are made of polytetrafluoroethylene material.
6. The fuel cell monolithic test fixture of claim 3, wherein said seal ring (42) is a nitrile washer.
7. The fuel cell single chip test fixture according to any one of claims 3 to 6, wherein the connecting member (2) includes a plurality of bolts (21) and a plurality of nuts (22) corresponding to the bolts (21) one by one, and threaded ends of the plurality of bolts (21) penetrate edges of the two end plates (12), the two first insulating sheets (13), the two electrode plates (15) and the two carbon plates (11) in the left-right direction in sequence, and one nut (22) is fastened to a threaded end of each bolt (21).
8. The fuel cell single chip test fixture as claimed in claim 7, wherein the two end plates (12) are provided with a groove (121) at the middle of the side away from each other, the screw hole is located at the groove bottom corresponding to the groove (121), and the ends of the hollow bolts (44) away from the threaded ends thereof are located in the corresponding grooves (121);
two one side that end plate (12) kept away from each other is equipped with a second insulating piece (14) respectively, second insulating piece (14) will correspond on end plate (12) the notch of recess (121) is covered.
9. The fuel cell single chip testing jig according to claim 8, wherein the second insulating sheets (14) are provided with a heat generating sheet at the central portion of the sides thereof remote from each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022259148.0U CN213600744U (en) | 2020-10-12 | 2020-10-12 | Fuel cell monolithic test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022259148.0U CN213600744U (en) | 2020-10-12 | 2020-10-12 | Fuel cell monolithic test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213600744U true CN213600744U (en) | 2021-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022259148.0U Active CN213600744U (en) | 2020-10-12 | 2020-10-12 | Fuel cell monolithic test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213600744U (en) |
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2020
- 2020-10-12 CN CN202022259148.0U patent/CN213600744U/en active Active
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