Single cell airtight flow resistance test fixture

Abstract

The utility model relates to a single-cell airtight flow resistance test fixture device, including an upper fixture module, a lower fixture module, a sealing ring, and a plurality of product limit blocks. The sealing ring is installed between the upper fixture module and the lower fixture module, and the plurality of product limit blocks are installed on the inner side of the lower fixture module. The plurality of product limit blocks surround the outside of the sealing ring and limit the sealing ring. The single-cell airtight flow resistance test fixture device of the utility model is adopted, and the design that the width of the sealing ring is slightly wider than the width of the groove and the interference fit installation method are adopted to facilitate the replacement of the model. The frosted pattern design on the surface of the sealing ring plays an anti-slip sealing role. The sealing ring is easy and quick to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the field of hydrogen fuel cells, in particular to the field of new energy hydrogen fuel cell single cell production, and specifically refers to a single cell airtight flow resistance testing tooling device. Background Art

[0002] A hydrogen fuel cell is a power generation device that directly converts the chemical energy of hydrogen and oxygen into electrical energy. A single cell is the core of a hydrogen fuel cell and consists of a membrane electrode and a bipolar plate. The sealing test of the bipolar plate to detect the sealing of the single piece is an important indicator for measuring the quality of a single cell.

[0003] The requirements for fuel cell membrane electrode and bipolar plate inspection output and sealing accuracy are getting higher and higher. The traditional sealing strip method not only has unsatisfactory sealing performance, but also has low replacement efficiency and cannot meet the requirements of mass production. Ordinary sealing methods have gradually failed to meet the needs of the rapid development of fuel cells. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the above-mentioned prior art and provide a single-cell airtight flow resistance testing tooling device which has good sealing performance, high replacement efficiency and a wide range of applications.

[0005] In order to achieve the above purpose, the single cell airtight flow resistance test fixture device of the utility model is as follows:

[0006] The main feature of the single-cell airtight flow resistance test fixture device is that the device includes an upper fixture module, a lower fixture module, a sealing ring, and multiple product limit blocks. The sealing ring is installed between the upper fixture module and the lower fixture module, the multiple product limit blocks are installed on the inner side of the lower fixture module, and the multiple product limit blocks surround the outside of the sealing ring and limit the sealing ring.

[0007] Preferably, the sealing ring comprises an upper sealing ring and a lower sealing ring, and the upper sealing ring is embedded and installed on the inner side of the upper tooling module.

[0008] Preferably, the lower sealing ring is embedded and installed on the inner side of the lower tooling module, and the upper sealing ring and the lower sealing ring are installed and connected by interference fit.

[0009] Preferably, an upper tooling groove is provided on the inner side of the upper tooling module, and the upper sealing ring is installed in the upper tooling groove.

[0010] Preferably, the surface of the sealing ring has frosted texture to remove abrasive.

[0011] Preferably, the device further comprises a hydrogen cavity hole, a water cavity hole and a cavity hole, and the hydrogen cavity hole, the water cavity hole and the cavity hole are all arranged on the upper surface of the upper tooling module.

[0012] The utility model adopts the single-cell airtight flow resistance test fixture device, which is convenient for changing the type by adopting the design that the width of the sealing ring is slightly wider than the width of the groove and the installation method of interference fit. The frosted pattern design on the surface of the sealing ring plays an anti-slip sealing role. The sealing ring is easy to disassemble and assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view of the single-cell airtight flow resistance test tooling structure of the utility model.

[0014] Figure 2 It is a three-dimensional schematic diagram of the lower tooling module of the single-cell airtight flow resistance test tooling structure of the present invention.

[0015] Figure 3 It is a three-dimensional schematic diagram of the single-cell airtight flow resistance test tooling structure of the utility model.

[0016] Figure 4 It is a schematic diagram of the sealing ring of the single-cell airtight flow resistance test fixture structure of the present invention.

[0017] Figure 5 It is a top view of the sealing ring of the single-cell airtight flow resistance test fixture structure of the present invention and a partial schematic diagram of the semicircle of the sealing ring.

[0018] Figure 6 It is a schematic diagram of the sealing ring surface of the single-cell airtight flow resistance test fixture structure of the present utility model.

[0019] Figure 7 The utility model is a flowchart of the installation of the single-cell airtight flow resistance test tooling structure.

[0020] Reference numerals:

[0021] 1 Upper tooling module

[0022] 2 Upper tooling module

[0023] 3 Sealing ring

[0024] 4 Sealing ring support plate

[0025] 5 Product limit block

[0026] 6 Hydrogen cavity hole position

[0027] 7 Water cavity hole position

[0028] 8 Cavity hole location DETAILED DESCRIPTION

[0029] In order to more clearly describe the technical content of the present invention, further description is given below in conjunction with specific embodiments.

[0030] The single-cell airtight flow resistance testing tooling device of the utility model comprises an upper tooling module, an upper tooling module, a sealing ring, and a plurality of product limit blocks. The sealing ring is installed between the upper tooling module and the lower tooling module, the plurality of product limit blocks are installed on the inner side of the lower tooling module, and the plurality of product limit blocks surround the outside of the sealing ring and limit the sealing ring.

[0031] As a preferred embodiment of the present utility model, the sealing ring comprises an upper sealing ring and a lower sealing ring, and the upper sealing ring is embedded and installed on the inner side of the upper tooling module.

[0032] As a preferred embodiment of the present utility model, the lower sealing ring is embedded and installed on the inner side of the lower tooling module, and the upper sealing ring and the lower sealing ring are installed and connected by interference fit.

[0033] As a preferred embodiment of the present utility model, an upper tooling groove is provided on the inner side of the upper tooling module, and the upper sealing ring is installed in the upper tooling groove.

[0034] As a preferred embodiment of the present utility model, the surface of the sealing ring has frosted pattern and peeling abrasive.

[0035] As a preferred embodiment of the present utility model, the device further comprises a hydrogen cavity hole, a water cavity hole and a cavity hole, and the hydrogen cavity hole, the water cavity hole and the cavity hole are all arranged on the upper surface of the upper tooling module.

[0036] With the rapid development of the fuel cell industry, the requirements for single-cell detection and positioning are becoming increasingly higher, so a convenient installation sealing ring has been developed. The upper and lower sealing rings are used to tighten the bipolar plate or membrane electrode to accurately detect the airtightness of the membrane electrode and bipolar plate.

[0037] In the specific implementation of the utility model, the technical solution includes two parts: a lower tooling module and an upper tooling module.

[0038] The installation process of the utility model is as follows:

[0039] Step 1: The sealing ring is installed in the upper tooling groove (the sealing ring is wider than the groove edge) and is inserted through interference fit to facilitate installation and changeover.

[0040] Step 2: The frosted pattern on the sealing ring surface removes abrasive materials to prevent material from being carried.

[0041] Step 3: If the sealing ring is damaged, it is designed to be easily replaced.

[0042] Conventional sealing rings are generally bonded on one side with glue, which makes it inconvenient to clean after changing the shape, and is more likely to contaminate the product to be tested and cause product damage. The utility model is easy to disassemble and assemble for changing the shape. The sealing strip and the tooling of the utility model are inserted into each other through interference fit, which is convenient for disassembly and replacement.

[0043] Compared with other double-peak seals, the utility model has a better sealing effect with frosted patterns on the surface. The frosted patterns of the utility model make the contact area larger and the sealing effect better, and have an anti-sticking function, which is not available in other conventional double-peak seals.

[0044] The sealing ring of the utility model is thicker and not easy to be damaged. The sealing ring is embedded in the tooling and is more solid and durable than the conventional sealing ring, which is relatively thin and easy to be damaged.

[0045] Most conventional sealing ring designs are only for reducing costs, and are often insufficient in terms of convenient disassembly and assembly. The utility model is not only low in cost but also easy to disassemble and replace.

[0046] The specific implementation scheme of this embodiment can refer to the relevant description in the above embodiment, which will not be repeated here.

[0047] It can be understood that the same or similar parts of the above embodiments can be referenced to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments.

[0048] It should be noted that, in the description of the present invention, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, the meaning of "plurality" refers to at least two.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0050] The utility model adopts the single-cell airtight flow resistance test fixture device, which is convenient for changing the type by adopting the design that the width of the sealing ring is slightly wider than the width of the groove and the installation method of interference fit. The frosted pattern design on the surface of the sealing ring plays an anti-slip sealing role. The sealing ring is easy to disassemble and assemble.

[0051] In this specification, the utility model has been described with reference to its specific embodiments. However, it is obvious that various modifications and changes can be made without departing from the spirit and scope of the utility model. Therefore, the description and drawings should be regarded as illustrative rather than restrictive.

Claims

1. A single cell airtight flow resistance test fixture, characterized in that: The device includes an upper tooling module, a lower tooling module, a sealing ring, and multiple product limit blocks. The sealing ring is installed between the upper tooling module and the lower tooling module, the multiple product limit blocks are installed on the inner side of the lower tooling module, and the multiple product limit blocks surround the outside of the sealing ring and limit the sealing ring.

2. The single cell airtight flow resistance test fixture device according to claim 1, characterized in that: The sealing ring comprises an upper sealing ring and a lower sealing ring, and the upper sealing ring is embedded and installed on the inner side of the upper tooling module.

3. The single cell airtight flow resistance test fixture device according to claim 2, characterized in that: The lower sealing ring is embedded and installed on the inner side of the lower tooling module, and the upper sealing ring and the lower sealing ring are installed and connected by interference fit.

4. The single cell airtight flow resistance test fixture device according to claim 2, characterized in that: An upper tooling groove is provided on the inner side of the upper tooling module, and the upper sealing ring is installed in the upper tooling groove.

5. The single cell airtight flow resistance test fixture device according to claim 1, characterized in that: The surface of the sealing ring has frosted grains to remove abrasive materials.

6. The single cell airtight flow resistance test fixture device according to any one of claims 1 to 5, characterized in that: The device further comprises a hydrogen cavity hole, a water cavity hole and a cavity hole, and the hydrogen cavity hole, the water cavity hole and the cavity hole are all arranged on the upper surface of the upper tooling module.

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