Electric pile testing tool and testing device

Abstract

The utility model provides a galvanic pile testing tool and a testing device, and the galvanic pile testing tool comprises an air inlet end plate, a first sealing element, a first insulating plate, a second sealing element and an air inlet end collector plate which are sequentially arranged at one side of a to-be-tested polar plate group along the stacking direction of the to-be-tested polar plate group, the blind end plate, the blind end insulating plate and the blind end collector plate are sequentially arranged on the other side of the polar plate group to be detected; the first sealing element, the first insulating plate, the second sealing element, the air inlet end collector plate and the polar plate group to be tested are provided with corresponding air path channels and liquid path channels which are consistent in hole pattern; a plurality of through holes are formed in the air inlet end plate, a part of the through holes are communicated with the two ends of the air path channel, a part of the through holes are communicated with the two ends of the liquid path channel, and the other through holes which are not communicated with the air path channel or the liquid path channel are blocked through first sealing pieces or sealing plugs. The galvanic pile test tool can improve the general performance, and can be suitable for verification of the performance of polar plates of different types.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel cell performance testing, in particular to a fuel cell stack testing tool.

[0002] The utility model also relates to a testing device provided with the above-mentioned battery stack testing tooling. Background Art

[0003] As an energy conversion device, fuel cells can directly convert the chemical energy of fuel into electrical energy. They have the advantages of high energy density, high efficiency, and environmental friendliness. During the development of fuel cells, a lot of adjustment design and experimental exploration are required. Therefore, there are several intermediate design states in the development process of formal products, and these design states require the production of special accessories.

[0004] During the development of the battery stack, multiple short stacks need to be verified. In order to meet the verification requirements, the components of the entire stack design need to be changed and redesigned, which is a heavy task. In addition, different projects require different short stack versions, and the corresponding test tooling components are different, which makes it impossible to use tooling components across projects, resulting in serious waste. Therefore, it is necessary to develop a highly versatile test tooling. Utility Model Content

[0005] In view of this, the utility model aims to propose a battery stack test tool to improve the versatility of the tool and to be applicable to the performance verification of plates of different versions.

[0006] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0007] A stack test tool, characterized by:

[0008] It includes an air intake end plate, a first seal, a first insulating plate, a second seal and an air intake end current collecting plate which are sequentially arranged on one side of the electrode group to be tested along the stacking direction of the electrode group to be tested, and a blind end end plate, a blind end insulating plate and a blind end current collecting plate which are sequentially arranged on the other side of the electrode group to be tested;

[0009] The first seal, the first insulating plate, the second seal, the inlet current collecting plate and the two ends of the electrode group to be tested are respectively provided with a gas path channel and a liquid path channel, the hole shape of the gas path channel on the first seal, the first insulating plate, the second seal and the inlet current collecting plate is consistent with the hole shape of the gas path channel on the electrode group to be tested, and the hole shape of the liquid path channel on the first seal, the first insulating plate, the second seal and the inlet current collecting plate is consistent with the hole shape of the liquid path channel on the electrode group to be tested;

[0010] Both ends of the intake end plate are respectively provided with through-hole areas, the projection of the through-hole areas in the first direction covers the gas path channel and the liquid path channel, the through-hole areas include a plurality of through-holes penetrating the thickness direction of the intake end plate, in the through-hole areas, some of the through-holes are communicated with both ends of the gas path channel, some of the through-holes are communicated with both ends of the liquid path channel, and the through-holes not communicated with the gas path channel and the liquid path channel are blocked by the first seal or the plug.

[0011] Further, the gas path channel includes an anode gas path and a cathode gas path; the anode gas path has an anode intake section and an anode outlet section that are communicated with each other, the cathode gas path has a cathode intake section and a cathode outlet section that are communicated with each other; some of the through-holes communicated with the gas path channel include a first area through-hole, a second area through-hole, a third area through-hole and a fourth area through-hole, the first area through-hole is communicated with the anode intake section, the second area through-hole is communicated with the anode outlet section, the third area through-hole is communicated with the cathode intake section, and the fourth area through-hole is communicated with the cathode outlet section.

[0012] Further, the liquid path channel includes a coolant inlet section and a coolant outlet section that are communicated with each other; some of the through-holes communicated with the liquid path channel include a fifth area through-hole and a sixth area through-hole, the fifth area through-hole is communicated with the coolant inlet section, and the sixth area through-hole is communicated with the coolant outlet section.

[0013] Further, it further includes a test bench and a plurality of connection manifolds; the connection manifold includes a confluence end having a confluence cavity, and a plurality of branch pipelines communicated with the confluence cavity, the confluence end is connected to the gas supply side or the liquid supply side on the test bench, and the plurality of branch pipelines of each connection manifold can be connected to the through-holes in the through-hole area to correspondingly communicate with the gas path channel or the liquid path channel.

[0014] Further, the group of plates to be tested at least includes a group of plate assemblies, the plate assembly includes an anode plate, a cathode plate and a membrane electrode, the anode plate is arranged close to the intake end current collector plate, the cathode plate is arranged close to the blind end current collector plate, and the membrane electrode is arranged between the anode plate and the cathode plate.

[0015] Further, the intake end current collector plate and the blind end current collector plate are both provided with protruding conductive connection parts, and the conductive connection parts are used for electrically connecting with an electronic load.

[0016] Further, the intake end plate and the blind end plate are connected together by fasteners passing through both of them; the first seal, the first insulating plate, the second seal, the intake current collector plate, the polar plate group to be measured, the blind end current collector plate, the blind end insulating plate, and the blind end plate are press-fitted between the intake end plate and the blind end plate.

[0017] Further, the intake end plate is provided with first mounting holes, and the blind end plate is provided with second mounting holes; the fasteners are screws, and both ends of the screw pass through the first mounting hole and the second mounting hole respectively, and are respectively screwed with fastening nuts.

[0018] Further, the first mounting holes are multiple and arranged circumferentially along the intake end plate, the second mounting holes are multiple and arranged circumferentially along the blind end plate, and the multiple first mounting holes correspond to the multiple second mounting holes one by one; the screw is provided in each of the corresponding first mounting hole and the second mounting hole.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] For the fuel cell stack test tooling of the present invention, by providing an intake end plate with multiple through holes, when matching bipolar plates or monopolar plates of different versions, the required through holes can be selected, and the through holes that are not required or have too small through areas can be sealed with the first seal or a sealing plug. In this way, the intake end plate, the blind end plate, the blind end insulating plate, the blind end current collector plate, etc. can be reused, thereby improving the versatility of the test tooling, achieving the effects of avoiding material waste and saving development costs, and also being able to be applicable to the performance verification of different versions of polar plates.

[0021] Another object of the present invention is to provide a test device, the test device includes an inspection instrument, and the fuel cell stack test tooling as described above; the inspection instrument is connected to the polar plate group to be measured.

[0022] The test device of the present invention and the fuel cell stack test tooling as described above have the same beneficial effects as those of the prior art, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0024] Figure 1 is an exploded view of the fuel cell stack test tooling according to the embodiment of the present invention;

[0025] Figure 2The front view of the stack test tooling according to the embodiment of the present utility model;

[0026] Figure 3 is Figure 2 the sectional view taken along the A-A viewing direction in

[0027] Figure 4 is Figure 2 the sectional view taken along the B-B viewing direction in

[0028] Figure 5 The structural schematic diagram of the intake end plate according to the embodiment of the present utility model;

[0029] Figure 6 The structural schematic diagram of the connection manifold according to the embodiment of the present utility model;

[0030] Explanation of reference numerals:

[0031] 1. Intake end plate; 2. First seal; 3. First insulating plate; 4. Second seal; 5. Intake end current collector plate; 6. Blind-end current collector plate; 7. Blind-end insulating plate; 8. Blind-end end plate; 9. Connection manifold; 10. Polar plate group to be tested; 20. Anode intake port; 30. Anode outlet port; 40. Cathode intake port; 50. Cathode outlet port; 60. Coolant inlet port; 70. Coolant outlet port; 91. Confluence end; 910. Confluence cavity; 92. Branch pipeline; 101. First area through hole; 102. Second area through hole; 103. Third area through hole; 104. Fourth area through hole; 105. Fifth area through hole; 106. Sixth area through hole; 107. First mounting hole; 108. Second mounting hole; 100. Anode intake section; 200. Anode outlet section; 300. Cathode intake section; 400. Cathode outlet section; 500. Coolant inlet section; 600. Coolant outlet section. Detailed implementation manners

[0032] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments may be combined with each other.

[0033] In the description of the present utility model, it should be noted that if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. appear, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present utility model. In addition, if terms such as "first", "second", etc. appear, they are also only for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0034] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installation", "connection", "connection", and "connector" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with specific situations.

[0035] The present utility model will be described in detail below with reference to the drawings and in conjunction with embodiments.

[0036] Embodiment 1

[0037] This embodiment relates to a stack testing tooling, which can improve the versatility of the tooling and is applicable to the performance verification of different plate types, thereby effectively avoiding material waste and saving development costs.

[0038] In terms of the overall structure, as Figures 1 to 4 shown, the stack testing tooling of this embodiment includes an inlet end plate 1, a first seal 2, a first insulating plate 3, a second seal 4, and an inlet end current collector plate 5 that are sequentially arranged on one side of the stack of plates to be tested 10 along the stacking direction pointing to the stack of plates to be tested 10, and a blind end plate 8, a blind end insulating plate 7, and a blind end current collector plate 6 that are sequentially arranged on the other side of the stack of plates to be tested 10.

[0039] Among them, gas path channels and liquid path channels are respectively provided at both ends of the first seal 2, the first insulating plate 3, the second seal 4, the inlet end current collector plate 5, and the stack of plates to be tested 10. The hole patterns of the gas path channels on the first seal 2, the first insulating plate 3, the second seal 4, and the inlet end current collector plate 5 are the same as those of the gas path channels on the stack of plates to be tested 10, and the hole patterns of the liquid path channels on the first seal 2, the first insulating plate 3, the second seal 4, and the inlet end current collector plate 5 are the same as those of the liquid path channels on the stack of plates to be tested 10.

[0040] Moreover, through hole areas are respectively provided at both ends of the inlet end plate 1. The projection of the through hole area along the first direction covers the gas path channel and the liquid path channel. The through hole area includes a plurality of through holes penetrating the thickness direction of the inlet end plate. In the through hole area, a part of the through holes is communicated with the gas path channel, a part of the through holes is communicated with the liquid path channel, and the remaining through holes that are not communicated with the gas path channel or the liquid path channel are blocked by the first seal 2 or a sealing plug.

[0041] At this time, in the above structure, the intake end plate 1 with multiple through holes is arranged such that some through holes communicate with the gas path channel and some through holes communicate with the liquid path channel. The remaining through holes that do not communicate with the gas path channel or the liquid path channel are blocked by the first seal 2 or the sealing plug. In this way, when matching different plate type electrodes, the required through holes can be selected to pass hydrogen, coolant or air, and the unnecessary through holes can be sealed by the first seal 2 or the sealing plug. Thus, for different types of stack types (the hole patterns of the gas path channels and liquid path channels of each stack type are different), the intake end plate 1, the blind end plate 8, the blind end insulating plate 7, the blind end current collector plate 6, etc. can be reused, thereby improving the versatility of the test fixture, achieving the effects of avoiding material waste and saving development costs, and also being applicable to the performance verification of different plate type electrodes.

[0042] It can be understood that the hole patterns of the gas path channel and the liquid path channel on the first seal 2 are the same as those of the test electrode plate group 10, the first insulating plate 3, the second seal 4, and the intake end current collector plate 5. Only channel holes are provided on the first seal 2, and the rest of the structure is a planar structure. The hole pattern on the first seal 2 is designed to open according to the hole patterns of the gas path channel and the liquid path channel of the test electrode plate group 10. In specific use, some through holes in the through hole area on the intake end plate 1 will communicate with the channel holes of the first seal 2, and another part of the through holes (i.e., the unnecessary through holes) in the through hole area will be blocked and sealed by the planar structure of the first seal 2 for the performance test of the electrode plate group.

[0043] In addition, it should be noted that the above-mentioned first direction specifically refers to Figure 1 the direction shown in. It should also be noted that the fuel cell stack test fixture of this embodiment can not only verify the performance of the bipolar plate, but also verify the performance of the single plate. In addition, it should be noted that the sealing plug in this embodiment can be made of the same material as the first seal 2, and in terms of structure, for example, it can be set in an approximate cone shape. By using the structural characteristics of the larger end at one end and the smaller end at the other end of the cone, the smaller end is inserted into the through hole that does not need to be used to seal the through hole.

[0044] Specifically, based on the above overall structure, continue to refer to Figures 1 to 4 as shown, the fuel cell stack test fixture of this embodiment includes an intake end plate 1, a first seal 2, a first insulating plate 3, a second seal 4, and an intake end current collector plate 5, as well as a blind end plate 8, a blind end insulating plate 7, and a blind end current collector plate 6. Among them, the intake end plate 1, the first seal 2, the first insulating plate 3, the second seal 4, and the intake end current collector plate 5 are arranged in sequence along the direction pointing to the test electrode plate group 10, and the blind end plate 8, the blind end insulating plate 7, and the blind end current collector plate 6 are also arranged in sequence along the direction pointing to the test electrode plate group 10. The test electrode plate group 10 is clamped between the intake end current collector plate 5 and the blind end current collector plate 6. In this embodiment, still refer to Figures 1 to 4As shown, the above-mentioned gas path channels include an anode gas path and a cathode gas path. Among them, the anode gas path has a connected anode intake section 100 and an anode outlet section 200, and the cathode gas path has a connected cathode intake section 300 and a cathode outlet section 400. Some through-holes connected to the gas path channels include a first area through-hole 101, a second area through-hole 102, a third area through-hole 103, and a fourth area through-hole 104. The first area through-hole 101 is connected to the anode intake section 100, the second area through-hole 102 is connected to the anode outlet section 200, the third area through-hole 103 is connected to the cathode intake section 300, and the fourth area through-hole 104 is connected to the cathode outlet section 400.

[0045] The above-mentioned liquid path channel specifically includes a connected coolant inlet section 500 and a coolant outlet section 600. Some through-holes connected to the liquid path channel include a fifth area through-hole 105 and a sixth area through-hole 106. The fifth area through-hole 105 is connected to the coolant inlet section 500, and the sixth area through-hole 106 is connected to the coolant outlet section 600.

[0046] Specifically, an anode intake port 20, an anode outlet port 30, a cathode intake port 40, a cathode outlet port 50, a coolant inlet port 60, and a coolant outlet port 70 are provided on the first seal 2, the first insulating plate 3, the second seal 4, the intake end current collector plate 5, and the test electrode plate group 10. The anode intake port 20, the coolant outlet port 70, and the cathode outlet port 50 are arranged in sequence at the same end of the first seal 2, the first insulating plate 3, the second seal 4, the intake end current collector plate 5, and the test electrode plate group 10. The cathode intake port 40, the coolant inlet port 60, and the anode outlet port 30 are arranged in sequence at the other end of the first seal 2, the first insulating plate 3, the second seal 4, the intake end current collector plate 5, and the test electrode plate group 10.

[0047] Moreover, the anode intake ports 20 on the first seal 2, the anode intake ports 20 on the first insulating plate 3, the anode intake ports 20 on the second seal 4, the anode intake ports 20 on the intake end current collector plate 5 and the anode intake ports 20 on the test electrode plate group 10 have the same hole shape and are in one-to-one correspondence and connection, and form the anode intake section 100. The anode outlet ports 30 on the first seal 2, the anode outlet ports 30 on the first insulating plate 3, the anode outlet ports 30 on the second seal 4, the anode outlet ports 30 on the intake end current collector plate 5 and the anode outlet ports 30 on the test electrode plate group 10 have the same hole shape and are in one-to-one correspondence and connection, and form the anode outlet section 200.

[0048] The cathode air inlet 40 on the first seal 2, the cathode air inlet 40 on the first insulating plate 3, the cathode air inlet 40 on the second seal 4, the cathode air inlet 40 on the inlet end current collector plate 5 and the cathode air inlet 40 on the test plate group 10 have the same hole shape and are in one-to-one correspondence and communication, and form a cathode air inlet section 300. The cathode air outlet 50 on the first seal 2, the cathode air outlet 50 on the first insulating plate 3, the cathode air outlet 50 on the second seal 4, the cathode air outlet 50 on the inlet end current collector plate 5 and the cathode air outlet 50 on the test plate group 10 have the same hole shape and are in one-to-one correspondence and communication, and form a cathode air outlet section 400.

[0049] The cold zone liquid inlet on the first seal 2, the cold zone liquid inlet on the first insulating plate 3, the cold zone liquid inlet on the second seal 4, the cold zone liquid inlet on the inlet end current collector plate 5 and the cold zone liquid inlet on the test plate group 10 have the same hole shape and are in one-to-one correspondence and communication, and form a cold zone liquid inlet section. The cold zone liquid outlet on the first seal 2, the cold zone liquid outlet on the first insulating plate 3, the cold zone liquid outlet on the second seal 4, the cold zone liquid outlet on the inlet end current collector plate 5 and the cold zone liquid outlet on the test plate group 10 have the same hole shape and are in one-to-one correspondence and communication, and form a cold zone liquid outlet section.

[0050] The settings of the anode air inlet section 100 and the anode air outlet section 200, the cathode air inlet section 300 and the cathode air outlet section 400, and the coolant inlet section 500 and the coolant outlet section 600 can make the test plate group 10 consistent with the actual stack structure, thus facilitating the guarantee of the accuracy of the test structure.

[0051] See Figure 5 As shown, the multiple through holes in each through hole area at both ends of the inlet end plate 1 are arranged at intervals along the length direction and the width direction of the inlet end plate 1, that is, the overall shape of each through hole area is rectangular. Moreover, among the multiple through holes, it includes the first area through holes 101 communicating with the anode air inlet section 100, the second area through holes 102 communicating with the anode air outlet section 200, the third area through holes 103 communicating with the cathode air inlet section 300, the fourth area through holes 104 communicating with the cathode air outlet section 400, the fifth area through holes 105 communicating with the coolant inlet section 500, and the sixth area through holes 106 communicating with the coolant outlet section 600.

[0052] It can be understood here that in addition to the above-mentioned rectangular dot matrix arrangement form, the through hole area can also be arranged in a circular or other polygonal shape, and this is also acceptable. It is also worth noting here that under the condition of ensuring sufficient strength of the inlet end plate 1, it is advisable to ensure that the number of through holes communicating with both ends of the gas path channel and the number of through holes communicating with the liquid path channel are respectively 2-3.

[0053] The test electrode plate group 10 of this embodiment includes at least one group of electrode plate assemblies. That is to say, the test electrode plate group 10 can be one group of electrode plate assemblies or multiple groups of electrode plate assemblies. Each electrode plate assembly includes an anode plate and a cathode plate. The anode plate is arranged close to the intake end plate 1, and a membrane electrode is provided between the anode plate and the cathode plate. At this time, the stack test tooling of this embodiment can test one group of electrode plate assemblies or multiple groups of electrode plate assemblies.

[0054] Moreover, in this embodiment, the intake end current collector plate 5 and the blind end current collector plate 6 are both convexly provided with conductive connection parts, which are used for electrically connecting with an electronic load.

[0055] In addition, as a preferred embodiment, the stack test tooling of this embodiment further includes a test bench and a plurality of connection manifolds 9. Each connection manifold 9 is respectively provided with through holes corresponding to each area. Each connection manifold 9 includes a confluence end 91 having a confluence cavity 910 and a plurality of branch pipelines 92 communicated with the confluence cavity 910. Among them, the confluence end 91 is connected to the gas supply side or the liquid supply side on the test bench, and the plurality of branch pipelines 92 of each connection manifold 9 can be connected to a plurality of through holes in the corresponding area to correspondingly communicate with the gas path channel or the liquid path channel.

[0056] Specifically, the plurality of connection manifolds 9 include a first connection manifold connected to the first area through hole 101, a second connection manifold connected to the second area through hole 102, a third connection manifold connected to the third area through hole 103, a fourth connection manifold connected to the fourth area through hole 104, a fifth connection manifold connected to the fifth area through hole 105, and a sixth connection manifold connected to the sixth area through hole 106.

[0057] Moreover, the plurality of branch pipelines on the first connection manifold 9 are connected to the first area through hole 101, the plurality of branch pipelines on the second connection manifold 9 are connected to the second area through hole 102, the plurality of branch pipelines on the third connection manifold 9 are connected to the third area through hole 103, the plurality of branch pipelines on the fourth connection manifold 9 are connected to the fourth area through hole 104, the plurality of branch pipelines on the fifth connection manifold 9 are connected to the fifth area through hole 105, and the plurality of branch pipelines on the sixth connection manifold 9 are connected to the sixth area through hole 106. And in specific implementation, the plurality of branch pipelines and each through hole are connected through pipe joints.

[0058] As a preferred implementation form, in this embodiment, the intake end plate 1 and the blind end plate 8 are connected together by fasteners passing through both of them. The first seal 2, the first insulating plate 3, the second seal 4, the intake current collector plate, the to-be-tested plate group 10, the blind end current collector plate 6, the blind end insulating plate 7, and the blind end plate 8 are press-fitted between the intake end plate 1 and the blind end plate 8. In this way, it is not necessary to design through holes in the first seal 2, the first insulating plate 3, the second seal 4, the intake current collector plate, the to-be-tested plate group 10, the blind end current collector plate 6, the blind end insulating plate 7, and the blind end plate 8, so that the fasteners are only installed on the intake end plate 1 and the blind end plate 8, which can not only ensure the reliability of the installation between the intake end plate 1 and the blind end plate 8, but also make the installation more convenient.

[0059] Specifically, the intake end plate 1 is provided with a first mounting hole 107, and the blind end plate 8 is provided with a second mounting hole 108. The fastener adopts a screw rod, and both ends of the screw rod pass through the first mounting hole 107 and the second mounting hole 108 respectively, and are respectively screwed with fastening nuts. At this time, using a screw rod as the fastener is convenient for installation and disassembly.

[0060] As a further preferred implementation manner, the first mounting holes 107 are multiple arranged along the circumferential direction of the intake end plate 1, the second mounting holes 108 are multiple arranged along the circumferential direction of the blind end plate 8, the multiple first mounting holes 107 and the multiple second mounting holes 108 correspond to each other one by one, and screw rods are provided in the corresponding first mounting holes 107 and second mounting holes 108. With such a setting, the reliability of the installation between the intake end plate 1 and the blind end plate 8 can be further ensured.

[0061] The stack test tooling of this embodiment can select the required through holes on the intake end plate 1 according to different plate types. The through holes that do not need through holes or have too small through areas can be sealed with the first seal 2 or a sealing plug. In this way, multiple components can be reused, which can improve the versatility of the test tooling, avoid material waste, save development costs, and at the same time can also be applicable to the verification of the performance of different plate types.

[0062] Embodiment Two

[0063] This embodiment relates to a test device, which includes an inspection instrument and the stack test tooling of Embodiment One. Among them, the inspection instrument is connected to the to-be-tested plate group 10 to detect the current and voltage when the plate group 10 is working. The specific connection method can refer to the prior art.

[0064] The test device of this embodiment has good versatility and can be applicable to the performance verification of different plate types, and has a very good use effect.

[0065] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An electric stack testing tooling, characterized in that: It includes an air inlet end plate (1), a first seal (2), a first insulating plate (3), a second seal (4) and an air inlet end current collector plate (5) which are sequentially arranged on one side of the to-be-tested plate group (10) along the stacking direction of the to-be-tested plate group (10), and a blind end plate (8), a blind end insulating plate (7) and a blind end current collector plate (6) which are sequentially arranged on the other side of the to-be-tested plate group (10); The two ends of the first seal (2), the first insulating plate (3), the second seal (4), the air inlet end current collector plate (5) and the to-be-tested plate group (10) are respectively provided with an air path channel and a liquid path channel. The hole patterns of the air path channels on the first seal (2), the first insulating plate (3), the second seal (4) and the air inlet end current collector plate (5) are the same as those of the air path channels on the to-be-tested plate group (10), and the hole patterns of the liquid path channels on the first seal (2), the first insulating plate (3), the second seal (4) and the air inlet end current collector plate (5) are the same as those of the liquid path channels on the to-be-tested plate group (10); The two ends of the air inlet end plate (1) are respectively provided with a through-hole area. The projection of the through-hole area along the first direction covers the air path channel and the liquid path channel. The through-hole area includes a plurality of through-holes penetrating the thickness direction of the air inlet end plate (1); in the through-hole area, a part of the through-holes are communicated with the air path channel, a part of the through-holes are communicated with the liquid path channel, and the through-holes not communicated with the air path channel and the liquid path channel are blocked by the first seal (2) or a sealing plug.

2. The electric stack testing tooling according to claim 1, characterized in that: The air path channel includes an anode air path and a cathode air path; The anode air path has a connected anode air inlet section (100) and an anode air outlet section (200), and the cathode air path has a connected cathode air inlet section (300) and a cathode air outlet section (400); Part of the through-holes communicated with the air path channel include a first area through-hole (101), a second area through-hole (102), a third area through-hole (103) and a fourth area through-hole (104). The first area through-hole (101) is communicated with the anode air inlet section (100), the second area through-hole (102) is communicated with the anode air outlet section (200), the third area through-hole (103) is communicated with the cathode air inlet section (300), and the fourth area through-hole (104) is communicated with the cathode air outlet section (400).

3. The electric stack testing tooling according to claim 2, characterized in that: The liquid path channel includes a connected coolant inlet section (500) and a coolant outlet section (600); Part of the through-holes communicated with the liquid path channel include a fifth area through-hole (105) and a sixth area through-hole (106). The fifth area through-hole (105) is communicated with the coolant inlet section (500), and the sixth area through-hole (106) is communicated with the coolant outlet section (600).

4. The fuel cell stack test tooling according to claim 3, characterized in that: It further includes a test bench and a plurality of connection manifolds (9); The connection manifold (9) includes a confluence end (91) of a confluence chamber (910), and a plurality of branch pipelines (92) communicated with the confluence chamber (910); the confluence end (91) is connected to the gas supply side or the liquid supply side on the test bench, and the plurality of branch pipelines (92) of each connection manifold (9) can be connected to the through holes in the through hole area to correspondingly communicate with the gas path channel or the liquid path channel.

5. The fuel cell stack test tooling according to claim 1, characterized in that: The to-be-tested plate group (10) includes at least one group of plate assemblies, and each plate assembly includes an anode plate, a cathode plate and a membrane electrode; The anode plate is arranged close to the intake end current collector plate (5), the cathode plate is arranged close to the blind end current collector plate (6), and the membrane electrode is arranged between the anode plate and the cathode plate.

6. The fuel cell stack test tooling according to claim 1, characterized in that: Both the intake end current collector plate (5) and the blind end current collector plate (6) are provided with protruding conductive connection parts for electrically connecting with an electronic load.

7. The fuel cell stack test tooling according to any one of claims 1 to 6, characterized in that: The intake end plate (1) and the blind end plate (8) are connected together by fasteners passing through both of them; The first seal (2), the first insulating plate (3), the second seal (4), the intake current collector plate, the to-be-tested plate group (10), the blind end current collector plate (6), the blind end insulating plate (7) and the blind end plate (8) are press-fitted between the intake end plate (1) and the blind end plate (8).

8. The fuel cell stack test tooling according to claim 7, characterized in that: The intake end plate (1) is provided with a first mounting hole (107), and the blind end plate (8) is provided with a second mounting hole (108); The fastener adopts a screw rod, and both ends of the screw rod pass through the first mounting hole (107) and the second mounting hole (108) respectively, and are respectively screwed with fastening nuts.

9. The fuel cell stack test tooling according to claim 8, characterized in that: The first mounting holes (107) are multiple and arranged circumferentially along the intake end plate (1), the second mounting holes (108) are multiple and arranged circumferentially along the blind end plate (8), and the multiple first mounting holes (107) and the multiple second mounting holes (108) correspond to each other one by one; The screw rod is arranged in each of the correspondingly arranged first mounting hole (107) and second mounting hole (108).

10. A test device, characterized in that: The test device includes an inspection instrument and the fuel cell stack test tooling according to any one of claims 1 to 9; The inspection instrument is connected to the to-be-tested plate group (10).

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