Mounting structure for fuel cell stack inspection

Abstract

The utility model relates to the technical field of fuel cells, and discloses a mounting structure for fuel cell stack inspection, which comprises an inspection piece, a mounting part and a connecting part which are integrally arranged, the mounting part is provided with a positioning hole, one side of the mounting part extends outwards to form a first bump, and the connecting part is used for being connected with a plug of an inspection module; the surface of the bipolar plate is provided with a mounting groove, a positioning part and a first slot, one side of the mounting groove extends out of the side edge of the bipolar plate, the positioning part is arranged in the mounting groove and is connected with the bipolar plate, and the first slot is formed in the other side of the mounting groove and is communicated with the mounting groove; when the installation part of the inspection piece is correspondingly installed in the installation groove of the bipolar plate, the connection part is located outside the side edge of the bipolar plate, the positioning part is correspondingly clamped in the positioning hole, and the first protruding block is correspondingly clamped in the first insertion groove. According to the installation structure, the polling piece is accurately installed, and the position is stable.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel cells, in particular to an installation structure for inspecting a fuel cell stack. Background Art

[0002] A hydrogen fuel cell is a power generation device that uses hydrogen as fuel and converts the chemical energy in the fuel cell into electrical energy through an electrochemical reaction. A fuel cell stack is composed of components such as bipolar plates, membrane electrodes, current collectors, inlet end plates, rear end plates, fixing components, and inspection modules. Among them, the inspection module is used to detect whether the stack voltage is normal, and the structure of the inspection piece and its installation method on the bipolar plate directly affect the reliability and accuracy of the stack voltage detection. At present, the installation and positioning of the inspection piece are not accurate enough, and it is easy to produce position deviation. Content of the Utility Model

[0003] The purpose of the utility model is to provide an installation structure for inspecting a fuel cell stack, so that the inspection piece is accurately installed and has a stable position.

[0004] To achieve the above purpose, the utility model provides an installation structure for inspecting a fuel cell stack, including:

[0005] An inspection piece, including an integrally provided installation part and a connecting part, the installation part has a positioning hole, one side of the installation part extends outward to form a first convex block, and the connecting part is used for connecting with the plug of the inspection module; and

[0006] A bipolar plate, the surface of which has an installation groove, a positioning part and a first slot, one side of the installation groove extends out of the side of the bipolar plate, the positioning part is arranged in the installation groove and connected with the bipolar plate, and the first slot is arranged on the other side of the installation groove and communicated with the installation groove;

[0007] Wherein, when the installation part of the inspection piece is correspondingly installed in the installation groove of the bipolar plate, the connecting part is located outside the side of the bipolar plate, the positioning part is correspondingly clamped in the positioning hole, and the first convex block is correspondingly clamped in the first slot.

[0008] In some embodiments, the inspection piece is made of a conductive material, and the thickness of the inspection piece is 0.1 - 0.5 mm.

[0009] In some embodiments, the positioning part is rectangularly arranged, and the shape of the positioning hole is adapted to the shape of the positioning part.

[0010] In some embodiments, both sides of the connecting part are recessed inward to form notch grooves, and the notch grooves are used for connecting with the plug of the inspection module.

[0011] In some embodiments, the side of the positioning portion is flush with the side of the bipolar plate.

[0012] In some embodiments, the surface of the bipolar plate further has a second slot, which is disposed opposite to the first slot and is parallel to the side of the bipolar plate.

[0013] In some embodiments, the other side of the mounting portion extends outward to form a second bump, and the second bump is correspondingly engaged in the second slot.

[0014] In some embodiments, the first slot extends in a direction away from the side of the bipolar plate, and an angle a is formed between the first slot and the second slot.

[0015] In some embodiments, the value range of the angle a is 15° - 45°.

[0016] In some embodiments, the thickness of the inspection piece, the depth of the mounting groove, and the height of the positioning portion are all equal.

[0017] The present utility model provides an installation structure for fuel cell stack inspection. Compared with the prior art, its beneficial effects are as follows:

[0018] When the mounting portion of the inspection piece is correspondingly mounted in the mounting groove of the bipolar plate, the connecting portion is located outside the side of the bipolar plate, the positioning portion is correspondingly engaged in the positioning hole, and the first bump is correspondingly engaged in the first slot, so that the inspection piece is accurately mounted on the bipolar plate and has a stable position. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of the installation structure for fuel cell stack inspection provided by an embodiment of the present utility model.

[0020] Figure 2 It is a schematic diagram of a partially enlarged structure of the installation structure for fuel cell stack inspection provided by an embodiment of the present utility model.

[0021] In the figure: 1. Inspection piece; 11. Mounting portion; 111. Positioning hole; 112. First bump; 113. Second bump; 12. Connecting portion; 121. Notch groove; 2. Bipolar plate; 21. Mounting groove; 22. Positioning portion; 23. First slot; 24. Second slot. Detailed Embodiments

[0022] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0023] It should be understood that in the description of the present application, the orientation or positional relationship indicated by terms such as "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application 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. Therefore, it should not be construed as a limitation to the present application. The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. That is, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In addition, unless otherwise specified, the meaning of "a plurality" is two or more.

[0024] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0025] As Figure 1-2 shown, the installation structure for inspecting a fuel cell stack according to an embodiment of the present utility model includes an inspection piece 1 and a bipolar plate 2.

[0026] The inspection piece 1 includes an integrally provided mounting portion 11 and a connecting portion 12. The mounting portion 11 has a positioning hole 111. One side of the mounting portion 11 extends outward to form a first convex block 112. The connecting portion 12 is used for connecting with the plug of the inspection module.

[0027] The surface of the bipolar plate 2 has a mounting groove 21, a positioning portion 22, and a first slot 23. One side of the mounting groove 21 extends out of the side of the bipolar plate 2. The positioning portion 22 is provided in the mounting groove 21 and is connected to the bipolar plate 2. The first slot 23 is provided on the other side of the mounting groove 21 and is communicated with the mounting groove 21.

[0028] In this embodiment, when the mounting portion 11 of the inspection piece 1 is correspondingly mounted in the mounting groove 21 of the bipolar plate 2, the connecting portion 12 is located outside the side of the bipolar plate 2. The positioning portion 22 is correspondingly engaged in the positioning hole 111, and the first convex block 112 is correspondingly engaged in the first slot 23. The positioning portion 22 is correspondingly engaged in the positioning hole 111 to realize the positioning of the inspection piece 1 on the bipolar plate 2. The first convex block 112 is correspondingly engaged in the first slot 23, which can limit the position of the inspection piece 1 on the bipolar plate 2 and prevent the inspection piece 1 from shifting or rotating.

[0029] Based on the above structural arrangement, the inspection piece 1 is accurately mounted on the bipolar plate 2 and has a stable position. When the fuel cell stack is working and is subjected to vibration and impact, the accuracy and reliability of voltage detection can be ensured.

[0030] In one embodiment, the inspection piece 1 is made of a conductive material, and the thickness of the inspection piece 1 is 0.1 - 0.5 mm. Exemplarily, the inspection piece 1 is made of brass or stainless steel material to achieve the conductive effect.

[0031] In one embodiment, the positioning portion 22 is rectangularly arranged, and the shape of the positioning hole 111 is adapted to the shape of the positioning portion 22. When the positioning portion 22 is correspondingly engaged in the positioning hole 111, the outer wall of the positioning portion 22 abuts against the inner wall of the positioning hole 111 to achieve positioning and ensure the installation accuracy.

[0032] In one embodiment, notches 121 are formed by inward depressions on both sides of the connecting portion 12. The notches 121 are used to connect with the plug of the inspection module. The notches 121 can keep the plug of the inspection module installed on the connecting portion 12 and not easily slip off.

[0033] In one embodiment, the side of the positioning portion 22 is flush with the side of the bipolar plate 2, making the outer shape of the bipolar plate 2 regular.

[0034] In one embodiment, the surface of the bipolar plate 2 further has a second slot 24. The second slot 24 is arranged opposite to the first slot 23 and is parallel to the side of the bipolar plate 2.

[0035] Based on the position of the second slot 24 described above, the other side of the mounting portion 11 extends outward to form a second protrusion 113. The second protrusion 113 is correspondingly engaged in the second slot 24. Through the structural arrangement of the second protrusion 113 and the second slot 24, the position of the inspection piece 1 on the bipolar plate 2 can be further defined, preventing the inspection piece 1 from shifting or rotating.

[0036] In one embodiment, the first slot 23 extends in a direction away from the side of the bipolar plate 2, and an included angle a is formed between the first slot 23 and the second slot 24. The extending directions of the first slot 23 and the second slot 24 are different. When the first protrusion 112 is correspondingly engaged in the first slot 23 and the second protrusion 113 is correspondingly engaged in the second slot 24, it is more conducive to keeping the position of the inspection piece 1 stable and preventing it from shifting or rotating.

[0037] As Figure 2 shown, in one embodiment, the value range of the included angle a is 15° - 45°.

[0038] In one embodiment, the thickness of the inspection piece 1, the depth of the mounting groove 21, and the height of the positioning portion 22 are all equal. When the inspection piece 1 is installed in the mounting groove 21 of the bipolar plate 2, the overall structure is compact and occupies little space.

[0039] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present utility model.

Claims

1. An installation structure for inspecting a fuel cell stack, characterized in that, Including: An inspection piece, including an integrally provided installation part and a connection part. The installation part has a positioning hole, and one side of the installation part extends outward to form a first bump. The connection part is used to connect with the plug of the inspection module; and A bipolar plate, the surface of which has an installation groove, a positioning part and a first slot. One side of the installation groove extends out of the side of the bipolar plate. The positioning part is arranged in the installation groove and connected with the bipolar plate. The first slot is arranged on the other side of the installation groove and communicated with the installation groove; Wherein, when the installation part of the inspection piece is correspondingly installed in the installation groove of the bipolar plate, the connection part is located outside the side of the bipolar plate, the positioning part is correspondingly engaged in the positioning hole, and the first bump is correspondingly engaged in the first slot.

2. The installation structure for the inspection tour of the fuel cell stack according to claim 1, characterized in that, The inspection piece is made of a conductive material, and the thickness of the inspection piece is 0.1 - 0.5 mm.

3. The installation structure for the inspection tour of the fuel cell stack according to claim 1, characterized in that, The positioning part is rectangularly arranged, and the shape of the positioning hole is adapted to the shape of the positioning part.

4. The installation structure for the inspection of the fuel cell stack according to claim 1, characterized in that, Both sides of the connection part are recessed inward to form notch grooves, and the notch grooves are used to connect with the plug of the inspection module.

5. The installation structure for the inspection of the fuel cell stack according to claim 1, characterized in that, The side of the positioning part is flush with the side of the bipolar plate.

6. The installation structure for the inspection of the fuel cell stack according to claim 5, characterized in that, The surface of the bipolar plate also has a second slot, the second slot is arranged opposite to the first slot, and the second slot is parallel to the side of the bipolar plate.

7. The installation structure for the inspection of the fuel cell stack according to claim 6, characterized in that, The other side of the installation part extends outward to form a second bump, and the second bump is correspondingly engaged in the second slot.

8. The installation structure for the inspection of a fuel cell stack according to claim 6, wherein The first slot extends in the direction away from the side of the bipolar plate, and an included angle a is formed between the first slot and the second slot.

9. The installation structure for inspecting a fuel cell stack according to claim 8, characterized in that, The value range of the included angle a is 15° - 45°.

10. The installation structure for the inspection of a fuel cell stack according to claim 1, characterized in that, The thickness of the inspection piece, the depth of the installation groove and the height of the positioning part are all equal.

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