CN217766751U - Fuel cell testing device - Google Patents

Abstract

The utility model relates to the technical field of battery testing, in particular to a fuel cell testing device. A fuel cell test device, comprising: a test platform, the test platform has at least a pair of hoses, and one end of each hose away from the test platform is fixedly connected with a first joint; at least a pair of chucks, one end of each chuck has The connecting plate connected with the fuel cell to be tested, the other end of each chuck is provided with a second joint adapted to the first joint; the fastening structure includes a first half ring and a second half ring, the first half ring It is connected with the connecting end of the second half ring in rotation, and the tightening end is connected by a tightening rod, and the tightening rod is tightened to close the tightening ends of the first half ring and the second half ring to form an annular accommodating space. The accommodating space is used for to accommodate the first connector and the second connector. The utility model solves the problem that the connection strength between the joints is insufficient, resulting in gaps or even separation at the joints when the fuel cell testing device is subjected to relatively large pressure in use.

Description

A fuel cell testing device

technical field

The utility model relates to the technical field of battery testing, in particular to a fuel cell testing device.

Background technique

Before the water-cooled stack fuel cell is used, it needs to be tested and processed. During the test, it needs to be tested for sealing, stack performance, and output performance. During the test, it is required to maintain a good airtightness between the test device and the fuel cell to be tested, otherwise gas and water are likely to leak, which will affect the test data and lead to deviations in the test results.

In the existing fuel cell test device, the test device and the fuel cell to be tested are connected through hoses and hard tubes, but during the connection process, the joints of the hoses and the hard tube joints are often connected by plugging. When the gas or water pressure of the body is high, due to the insufficient connection strength between the joints, gaps will easily appear at the joints, and in severe cases, the joints will separate, making the test process unable to proceed smoothly.

Utility model content

Therefore, the technical problem to be solved by the utility model is to overcome the defect that gaps or even separation occur at the connection due to insufficient connection strength between the joints when the fuel cell testing device in the prior art is subjected to high pressure during use, thereby providing a A fuel cell testing device.

In order to solve the above problems, the utility model provides a fuel cell testing device, comprising:

A test platform, the test platform has at least one pair of flexible pipes, and each end of the flexible pipes away from the test platform is fixedly connected with a first joint;

At least one pair of chucks, one end of each chuck has a connection plate connected to the fuel cell to be tested, and the other end of each chuck is provided with a second joint adapted to the first joint;

The fastening structure includes a first half ring and a second half ring, the connection ends of the first half ring and the second half ring are connected in rotation, and the fastening ends are connected by a fastening rod, and the fastening rod is tightened so that the The fastening ends of the first half-ring and the second half-ring are closed to form an annular accommodation space for accommodating the first joint and the second joint.

Optionally, the fastening rod includes a rotating head and a screw, and the screw passes through threaded holes at the fastening ends of the first half-ring and the second half-ring.

Optionally, the connecting ends of the first half-ring and the second half-ring are pierced with a fixing rod, and the first half-ring and the second half-ring rotate around the central axis of the fixing rod.

Optionally, the number of the hoses is three pairs, and each pair of the hoses is symmetrically arranged on a different chuck.

Optionally, the first joint and the second joint have the same outer diameter and are internally connected.

Optionally, baffles extend from side surfaces of the first half ring and the second half ring toward the central axis.

Optionally, the mating surfaces of the first joint and the second joint are provided with grooves adapted to each other, and the grooves are suitable for placing sealing rings.

Optionally, a connecting pipe is provided between the second joint of the chuck and the connecting plate, and the connecting pipe passes through the connecting plate.

Optionally, the hose is a metal hose, and the connecting pipe is a metal hard pipe.

Optionally, the test platform further includes an air storage tank and a water storage tank, and the air storage tank and the water storage tank are respectively connected to the hose pipeline.

The technical scheme of the utility model has the following advantages:

1. The fuel cell test device provided by the utility model includes: a test platform, the test platform has at least one pair of flexible pipes, each flexible pipe is fixedly connected with a first joint at one end away from the test platform; at least one pair of chucks, each The other end of the chuck is provided with a second joint adapted to the first joint; the fastening structure includes a first half-ring and a second half-ring, and the connecting ends of the first half-ring and the second half-ring are rotationally connected and fastened The two ends are connected by a fastening rod, and the fastening rod is tightened to close the fastening ends of the first half-ring and the second half-ring to form an annular accommodation space for accommodating the first joint and the second joint. The fastening structure includes a first half-ring and a second half-ring, the connection ends of the first half-ring and the second half-ring are rotationally connected, and the fastening end is fastened by a fastening rod, so that when the fastening rod is tightened, an annular shape is formed. The accommodating space accommodates the first connector and the second connector in the accommodating space. The first joint and the second joint are located in the annular space of the first half ring and the second half ring. When the fluid pressure passing through the first joint and the second joint is high, due to the fastening effect of the fastening rod, the first half The ring and the second half-ring are tightly fitted, and there will be no gaps at the first joint and the second joint, so that the joint between the first joint and the second joint can pass through the fluid with a strength that meets the test standard, and the data obtained from the test platform test It is more accurate and ensures the accuracy of fuel cell testing.

2. In the fuel cell test device provided by the utility model, the fastening rod includes a rotating head and a screw rod, and the screw rod passes through the threaded holes of the fastening ends of the first half ring and the second half ring, so that the first half ring and the second half ring can be screwed together. The second half ring is fastened to form a ring-shaped accommodation space, the connection is more reliable, and the disassembly and assembly are convenient.

3. In the fuel cell test device provided by the utility model, the connection ends of the first half ring and the second half ring are pierced with a fixed rod, and the first half ring and the second half ring rotate around the central axis of the fixed rod to pass through the fixed rod. The rod enables relative rotation between the first half-ring and the second half-ring between the connecting ends.

4. The fuel cell testing device provided by the utility model has three pairs of hoses, and each pair of hoses is symmetrically arranged on different chucks. Three pairs of flexible pipes are convenient for passing in hydrogen gas, air and water respectively when testing the fuel cell, so as to connect different chucks respectively to form closed fluid inlet and outlet pipelines.

5. In the fuel cell testing device provided by the utility model, the outer diameter of the first joint and the second joint are the same, and the inside is connected. One joint smoothly enters the other joint, which ensures the smooth flow of fluid during the test.

6. In the fuel cell testing device provided by the utility model, the sides of the first half-ring and the second half-ring extend toward the direction of the central axis with baffles, and the baffles prevent the first joint and the second joint from moving along the central axis The function of avoiding the movement of the first joint and the second joint when encountering a relatively high-pressure fluid ensures that there will be no gap between the first joint and the second joint.

7. In the fuel cell testing device provided by the utility model, the bonding surfaces of the first joint and the second joint are provided with mutually compatible grooves, and the grooves are suitable for placing sealing rings, and the sealing rings further play a sealing role.

8. In the fuel cell test device provided by the utility model, a connecting pipe is provided between the second joint of the chuck and the connecting plate, the connecting pipe runs through the connecting plate, the connecting pipe is a metal hard pipe, and the connecting pipe plays a role in connecting and supporting the second joint role. The hose is a metal hose, which is convenient for the connection between the test platform and the chuck, and will not reduce the strength of the pipe body itself, and can withstand a relatively high pressure fluid.

9. The fuel cell test device provided by the utility model, the test platform also includes a gas storage tank and a water storage tank, and the gas storage tank and the water storage tank are respectively connected with hose pipelines to provide gas and water flow for the test.

Description of drawings

In order to more clearly illustrate the specific implementation of the utility model or the technical solutions in the prior art, the accompanying drawings that need to be used in the description of the specific implementation or the prior art will be briefly introduced below. Obviously, the following descriptions The accompanying drawings are some implementations of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative work.

FIG. 1 is a schematic structural view of a fuel cell testing device provided in an embodiment of the present invention;

Fig. 2 is the structural representation of the chuck provided in the embodiment of the present utility model;

Fig. 3 is a schematic structural view of the connection between the hose and the first joint provided in the embodiment of the present invention.

Explanation of reference signs: 1. Fuel cell to be tested; 2. Connecting plate; 3. Connecting pipe; 4. Second joint; 5. Flexible hose; 6. First joint; 7. First half-ring; 8. Second Half ring; 9, fastening rod; 10, groove.

Detailed ways

The technical solutions of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the utility model, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific The azimuth structure and operation, therefore can not be construed as the limitation of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not constitute conflicts with each other.

A specific implementation of the fuel cell testing device shown in Figures 1-3 includes: a test platform, a chuck for connecting the test platform and the fuel cell to be tested, and three pairs of hoses 5 .

As shown in FIG. 1 , one end of each hose 5 is connected to the test platform, and the other end away from the test platform is fixedly connected with a first connector 6 . Specifically, the hose 5 is a metal hose.

As shown in Figure 1, a pair of chucks are installed on one side of the fuel cell 1 to be tested. The connection pipe 3 of the two joints 4, the connection plate 2 is fixed on the fuel cell 1 to be tested, the second joint 4 is arranged on the side away from the connection plate 2 on each chuck, and is adapted to the first joint 6, the connection pipe 3 is set through the connecting plate 2, specifically, the connecting pipe 3 is a stainless steel pipe.

In order to connect the test platform and the fuel cell 1 to be tested through, it also includes a fastening structure for accommodating the first joint 6 and the second joint 4 . As shown in FIG. 1 , the fastening structure includes a first half ring 7 and a second half ring 8 , and the first half ring 7 and the second half ring 8 are half rings with exactly the same size. One end of the first half ring 7 and the second half ring 8 is a connecting end, and the other end is a fastening end, wherein the connecting ends of the first half ring 7 and the second half ring 8 are pierced with a fixed rod, so that the first half ring The ring 7 and the second half-ring 8 rotate about the central axis of the fixed rod. The fastening end of the first half ring 7 and the second half ring 8 is provided with an extension mounting plate, and the mounting plate is provided with an internally threaded hole, and the fastening rod 9 passes through the first half ring 7 and the second half ring 8 The internally threaded holes make the fastening ends of the first half-ring 7 and the second half-ring 8 fit together, thereby forming an annular accommodating space that can accommodate the first joint 6 and the second joint 4 . In order to limit the movement of the first joint 6 and the second joint 4 in the accommodation space, the sides of the first joint 6 and the second joint 4, that is, on the cross section, are provided with baffles extending toward the central axis, and the baffles are on the The first half-ring 7 and the second half-ring 8 are closed to form a ring whose inner diameter is equal to the outer diameter of the connecting pipe 3 and the hose 5 .

In order to make the first joint 6 and the second joint 4 fit together, the outer diameters of the first joint 6 and the second joint 4 are the same, and the inside is through. In order to seal the gap between the first joint 6 and the second joint 4, as shown in Figure 3, the joint surfaces of the first joint 6 and the second joint 4 are provided with arc-shaped grooves 10 that are mutually adapted, and the grooves 10 is suitable for placing the sealing ring.

In order to realize the test of the fuel cell 1 to be tested, the test platform also includes an air storage tank and a water storage tank, and the air storage tank and the water storage tank are respectively connected with the hose 5 pipelines. Specifically, the gas storage tank is a hydrogen storage tank. In order to control the pipeline pressure, the test platform also includes a pressurizer. In order to realize the output of the test signal, the test platform also includes a controller and a display screen, wherein the controller is respectively connected to the signal of the pressurizer, the display screen, and the gas storage tank.

In the specific implementation process, first disconnect the connection between the first half ring 7 and the second half ring 8, and the tester puts the first joint 6, the second joint 4 and the sealing ring into the first half ring 7 and the second half ring respectively. In the second half-ring 8, rotate the first half-ring 7 and the second half-ring 8 to fit the fastening end, and screw the fastening rod 9 through the internal threaded hole of the fastening end to make the first half-ring 7 and the second half-ring 8 tight fit. After the air tightness test is completed, the testers respectively pass in fluids (hydrogen, water or air) that meet the pressure standards according to the test standards, and form closed pipelines through the hoses 5 that are separately arranged on different chucks. The controller displays the results on the display screen through analysis according to the tested data, so as to help testers judge whether the fuel cell 1 to be tested meets the production standard.

As an alternative embodiment, the number of hoses 5 can also be 1 pair, 2 pairs, 4 pairs or even more pairs.

As an alternative embodiment, the connecting pipe 3 may also be made of other metal materials such as copper pipes.

Apparently, the above-mentioned embodiments are only examples for clear description, rather than limiting the implementation. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. And the obvious changes or variations derived therefrom are still within the scope of protection of the utility model.

Claims (10)

1. A fuel cell testing device, characterized in that, comprising: A test platform, the test platform has at least one pair of flexible pipes (5), and one end of each flexible pipe (5) away from the test platform is fixedly connected with a first joint (6); At least one pair of chucks, one end of each of the chucks has a connection plate (2) connected to the fuel cell (1) to be tested, and the other end of each of the chucks is provided with a connecting plate (2) connected to the first joint ( 6) Adapted second connector (4); The fastening structure includes a first half-ring (7) and a second half-ring (8), the connecting ends of the first half-ring (7) and the second half-ring (8) are rotatably connected, and the fastening ends are fastened Rods (9) are connected, and the fastening rods (9) are tightened to close the fastening ends of the first half-ring (7) and the second half-ring (8) to form a ring-shaped accommodation space, and the accommodation space It is used to accommodate the first joint (6) and the second joint (4). 2. The fuel cell testing device according to claim 1, characterized in that the fastening rod (9) comprises a rotating head and a screw, and the screw passes through the first half ring (7) and the second half ring Threaded hole in fastening end of ring (8). 3. The fuel cell testing device according to claim 1, characterized in that, the connection ends of the first half ring (7) and the second half ring (8) are pierced with a fixing rod, and the first half ring (7) and the second half-ring (8) rotate around the central axis of the fixed rod. 4. The fuel cell testing device according to claim 1, characterized in that the number of said hoses (5) is three pairs, and each pair of said hoses (5) is symmetrically arranged on different said chucks superior. 5. The fuel cell testing device according to any one of claims 1-4, characterized in that, the first joint (6) and the second joint (4) have the same outer diameter and are penetrated inside. 6. The fuel cell testing device according to any one of claims 1-4, characterized in that, the sides of the first half-ring (7) and the second half-ring (8) both extend toward the direction of the central axis bezel. 7. The fuel cell testing device according to any one of claims 1-4, characterized in that, the abutment surfaces of the first joint (6) and the second joint (4) are provided with recesses that are adapted to each other. A groove (10), said groove (10) being suitable for placing a sealing ring. 8. The fuel cell testing device according to any one of claims 1-4, characterized in that a connecting pipe (3) is provided between the second joint (4) of the chuck and the connecting plate (2) , the connecting pipe (3) runs through the connecting plate (2). 9. The fuel cell testing device according to claim 8, characterized in that, the hose (5) is a metal hose (5), and the connecting pipe (3) is a metal hard pipe. 10. The fuel cell testing device according to any one of claims 1-4, characterized in that, the test platform further comprises an air storage tank and a water storage tank, the gas storage tank and the water storage tank are respectively connected to the Hose (5) pipeline connection.

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