Bipolar plate single plate forming hydraulic pressure leak hunting tool

Abstract

The utility model discloses a bipolar plate single plate forming hydraulic pressure leak hunting tool comprising a single-sided plate, the lower bottom surface of which is a smooth surface structure layer; a first cavity is formed in the middle of the single-sided board, and a first water inlet space and a first water outlet space are formed in the front end and the rear end of the first cavity respectively; a second cavity is formed in the middle of the tool plate structure, and a second water inlet space and a second water outlet space are formed in the front end and the rear end of the second cavity correspondingly; the second water inlet space, the second cavity and the second water outlet space are communicated, and a sealing ring structure is arranged on the upper edge of the communicated outer contour; a sealing cavity is formed between the tool plate structure and the single-sided plate through contact sealing of the sealing ring structure and the smooth surface structure layer; a silica gel pad is arranged at the lower end of the tool plate structure; a water inlet corresponding to the position of the second water inlet space is formed in one end of the silica gel pad; the other end of the silica gel pad is provided with a water outlet corresponding to the second water outlet space in position.

Description

Technical Field

[0001] The utility model relates to the field of fuel cell manufacturing, in particular to a bipolar plate single plate forming water pressure leak detection tool. Background Art

[0002] At present, the market competition for graphite fuel cell bipolar plates is fierce. With the gradual increase in demand and quantity, it is urgent for the company to improve the efficiency of each step of the production process, reduce production costs, and improve production efficiency and quality. Water pressure leak detection is an important step in detecting whether the bipolar plate is qualified.

[0003] Although there is a water pressure leak detection process in the process flow, it is not as accurate as leak detection after forming. Therefore, a bipolar plate single plate forming water pressure leak detection tooling was developed to meet product quality requirements. Utility Model Content

[0004] In order to overcome the above defects of the prior art, the purpose of the utility model is to provide a bipolar plate single plate forming hydraulic leak detection tool. The bipolar plate single plate forming hydraulic leak detection tool of the utility model can verify the side leakage process during the early assembly period, reduce product costs, and improve the factory qualification rate.

[0005] A bipolar plate single plate forming hydraulic leak detection tool, comprising:

[0006] At least one single-sided board, the bottom surface of the single-sided board being a smooth structural layer;

[0007] A first cavity is provided in the middle of the single-sided board, and a first water inlet space and a first water outlet space are respectively provided at the front and rear ends of the first cavity;

[0008] At least one tooling plate structure, wherein a second cavity is disposed in the middle of the tooling plate structure, and a second water inlet space and a second water outlet space are disposed at the front and rear ends of the second cavity respectively;

[0009] The second water inlet space, the second cavity and the second water outlet space are connected and a sealing ring structure is arranged on the outer contour of the connection;

[0010] The contour of the first water inlet space corresponds to the contour of the second water inlet space

[0011] The contour of the first water outlet space corresponds to the contour of the second water outlet space;

[0012] A sealed cavity is formed between the tooling board structure and the single-sided board by contacting and sealing the sealing ring structure with the smooth surface structure layer;

[0013] A silicone pad is provided at the lower end of the tooling plate structure;

[0014] One end of the silicone pad is provided with a water inlet corresponding to the position of the second water inlet space;

[0015] The other end of the silicone pad is provided with a water outlet corresponding to the position of the second water outlet space.

[0016] In a preferred embodiment of the present invention, the bipolar plate single plate forming hydraulic leak detection tooling is provided as one or more groups stacked up and down.

[0017] The preferred number of stacking groups is three.

[0018] In a preferred embodiment of the utility model, the bipolar plate single plate forming water pressure leak detection tooling is pressed by the tooling upper pressure plate at the upper end cooperating with the tooling positioning plate at the bottom.

[0019] In a preferred embodiment of the present invention, the sealing ring structure is a rubber sealing ring structure.

[0020] In a preferred embodiment of the present invention, the first cavity is filled with graphite.

[0021] In a preferred embodiment of the present invention, the second cavity is filled with graphite.

[0022] The beneficial effects of the utility model are:

[0023] The bipolar plate single plate forming water pressure leak detection tooling of the utility model can verify the side leakage process during the early assembly period, reduce product costs, and improve the factory qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the layered structure of the utility model.

[0025] Figure 2 It is a partial structural schematic diagram of the utility model.

[0026] Figure 3 It is a schematic diagram of the overall structure of the utility model. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the scope of the utility model. In addition, in the following structure, the description of the well-known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0028] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] like Figure 1-3 The illustrated bipolar plate single plate forming hydraulic leak detection tool comprises a single panel 100, the bottom surface of the single panel 100 is a smooth structural layer 101, a first cavity 110 is arranged in the middle of the single panel 100, and the first cavity 110 is filled with graphite.

[0030] A first water inlet space 111 and a first water outlet space 112 are respectively provided at the front and rear ends of the first cavity 110. The first water inlet space 111, the first cavity 110 and the first water outlet space 112 are connected.

[0031] A second cavity 210 is disposed in the middle of the tooling plate structure 200 , and the second cavity 210 is filled with graphite.

[0032] A second water inlet space 211 and a second water outlet space 212 are respectively provided at the front and rear ends of the second cavity 210. The second water inlet space 211, the second cavity 210 and the second water outlet space 212 are connected and a sealing ring structure 220 is provided on the upper edge of the connected outer contour. The sealing ring structure 220 is a rubber sealing ring structure.

[0033] The contour of the first water inlet space 111 corresponds to the contour of the second water inlet space 211 , and the contour of the first water outlet space 112 corresponds to the contour of the second water outlet space 212 .

[0034] A sealed cavity 30 is formed between the tooling board structure 200 and the single-sided board 100 by the sealing ring structure 220 contacting and sealing with the smooth surface structure layer 101 .

[0035] A silicone pad 300 is disposed at the lower end of the tooling plate structure 200 , and a water inlet 310 corresponding to the position of the second water inlet space 211 is disposed at one end of the silicone pad 300 .

[0036] The other end of the silicone pad 300 is provided with a water outlet 320 corresponding to the position of the second water outlet space 212 .

[0037] According to specific needs, the bipolar plate single plate forming water pressure leak detection tooling is set to stack one or more groups up and down, for example, the number of stacking groups is three.

[0038] The bipolar plate single plate forming hydraulic leak detection tooling is pressed together by the tooling upper pressing plate 10 at the upper end and the tooling positioning plate 20 at the bottom.

[0039] Because of the above structure, the working principle of the utility model is:

[0040] When a side leakage test is required, water is introduced through the water inlet, enters the single panel and tooling board structure through the two water inlet spaces, and then is discharged into the water outlet through the two water outlet spaces.

[0041] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above.

[0042] Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention shall be defined by the attached claims and their equivalents.

Claims

1. A bipolar plate single plate forming hydraulic leak detection tool, characterized in that: include: At least one single-sided board, the bottom surface of the single-sided board being a smooth structural layer; A first cavity is provided in the middle of the single-sided board, and a first water inlet space and a first water outlet space are respectively provided at the front and rear ends of the first cavity; At least one tooling plate structure, wherein a second cavity is disposed in the middle of the tooling plate structure, and a second water inlet space and a second water outlet space are disposed at the front and rear ends of the second cavity respectively; The second water inlet space, the second cavity and the second water outlet space are connected and a sealing ring structure is arranged on the outer contour of the connection; The contour of the first water inlet space corresponds to the contour of the second water inlet space The contour of the first water outlet space corresponds to the contour of the second water outlet space; A sealed cavity is formed between the tooling board structure and the single-sided board by contacting and sealing the sealing ring structure with the smooth surface structure layer; A silicone pad is provided at the lower end of the tooling plate structure; One end of the silicone pad is provided with a water inlet corresponding to the position of the second water inlet space; The other end of the silicone pad is provided with a water outlet corresponding to the position of the second water outlet space.

2. A bipolar plate single plate forming hydraulic leak detection tool as claimed in claim 1, characterized in that: The bipolar plate single plate forming hydraulic leak detection tooling is arranged as one or more groups stacked up and down.

3. A bipolar plate single plate forming hydraulic leak detection tool as claimed in claim 1, characterized in that: The bipolar plate single plate forming hydraulic leak detection tooling is pressed by the tooling upper pressure plate at the upper end cooperating with the tooling positioning plate at the bottom.

4. A bipolar plate single plate forming hydraulic leak detection tool as claimed in claim 1, characterized in that: The sealing ring structure is a rubber sealing ring structure.

5. The bipolar plate single plate forming hydraulic leak detection tool as claimed in claim 1, characterized in that: The first cavity is filled with graphite.

6. A bipolar plate single plate forming hydraulic leak detection tool as claimed in claim 1, characterized in that: The second cavity is filled with graphite.

Images