CN219106202U

CN219106202U - Inspection structure and fuel cell

Info

Publication number: CN219106202U
Application number: CN202222885711.4U
Authority: CN
Inventors: 李如飞; 魏星; 汪瀛; 刘金成
Original assignee: Huizhou Yiwei Hydrogen Energy Co ltd
Current assignee: Huizhou Yiwei Hydrogen Energy Co ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-05-30
Anticipated expiration: 2032-10-31

Abstract

The utility model belongs to the technical field of batteries, and discloses a patrol structure and a fuel cell. The inspection structure comprises an inspection piece and a bipolar plate, wherein the inspection piece comprises at least two clamping arms which are connected, a clamping space is formed between the at least two clamping arms, and the free ends of the at least two clamping arms are convexly provided with bulges towards the clamping space; the double clamping plates are provided with inserting grooves, at least part of inspection pieces can be inserted into the inserting grooves, and the protrusions are matched with the inserting grooves in a clamping mode. Through inserting two arms in the jack-in groove, set up the arch simultaneously on the arm lock for when the arm lock is in the jack-in groove, protruding and jack-in groove joint, protruding can closely contact with the jack-in groove, patrol and examine the piece and be difficult for droing, and plug mode is simple, has guaranteed to patrol and examine the connection effectiveness of structure, has simplified the connected mode who patrol and examine the structure. The fuel cell is more accurate and effective in the whole inspection result by adopting the inspection mechanism, and is quicker when the inspection structure is connected or installed.

Description

Inspection structure and fuel cell

Technical Field

The present utility model relates to the field of battery technologies, and in particular, to a patrol structure and a fuel cell.

Background

A fuel cell is a chemical device that directly converts chemical energy possessed by fuel into electric energy. The fuel cell converts the Gibbs free energy in the chemical energy of the fuel into electric energy through electrochemical reaction, and is not limited by the Carnot cycle effect, so the efficiency is high. The fuel cell uses fuel and oxygen as raw materials, and has no mechanical transmission parts, so that the fuel cell has no noise pollution and little discharged harmful gas.

The fuel cell comprises a plurality of battery units, wherein each battery unit is correspondingly provided with a routing inspection structure for monitoring the internal condition (such as voltage) of each battery unit in real time, the existing routing inspection structure is characterized in that a spring piece is fixed with a preset hole of a bipolar plate by using elastic extrusion, and the spring piece is easy to fatigue after being used for a long time, so that the spring piece cannot be fully contacted with the bipolar plate, and meanwhile, the possibility of falling off can occur; in the other inspection structure, a metal connecting piece is required to be placed in advance in the bipolar plate manufacturing process, then the metal connecting piece is welded with a wire for inspecting and collecting signals, and the manufacturing efficiency is low. The two inspection structures have certain defects in the connection mode, or the inspection failure caused by poor contact can occur after the inspection structure is used for a long time, or the connection mode is complex.

Therefore, there is a need to design a routing inspection structure and a fuel cell to solve the above problems.

Disclosure of Invention

An object of the present utility model is to provide a patrol structure, which can ensure the close fit of the patrol structure and simplify the installation mode of the patrol structure.

To achieve the purpose, the utility model adopts the following technical scheme:

the inspection structure comprises:

the inspection part comprises at least two connected clamping arms, a clamping space is formed between the at least two clamping arms, and the free ends of the at least two clamping arms are provided with bulges towards the clamping space; and

the bipolar plate is provided with a plug-in groove, at least part of the inspection piece can be inserted into the plug-in groove, and the bulge is in clamping fit with the plug-in groove.

Preferably, the inspection device further includes a conductive portion, wherein one end of the conductive portion is connected to at least one of the clamping arms, and the other end of the conductive portion is used for connecting a wire.

Preferably, the clip arm includes:

a connecting portion, wherein first ends of the connecting portions of at least two clip arms intersect; and

a clamping part, the second end of the connecting part is connected with the clamping part, and the bulge is arranged at the free end of the clamping part; the thickness of the first end is greater than the thickness of the second end.

Preferably, the vertical wall of the clamping portion facing away from the clamping space is inclined toward the clamping space from the second end to the free end of the clamping portion.

Preferably, the inclination angle of the vertical wall of the clamping part on the side facing away from the clamping space is 1-5 degrees.

Preferably, the connection position of the connection portion and the clamping portion is smoothly transited.

Preferably, the protrusion is arc-shaped.

Preferably, the dimension of the position of the insertion groove corresponding to the protrusion is larger than the dimension of the free end of the clip arm.

Another object of the present utility model is to provide a fuel cell, which can ensure that the inspection structure of each cell is compact, and the overall installation is faster.

the fuel cell comprises a plurality of battery units and a total control box, the fuel cell further comprises a plurality of inspection structures, one end of each inspection structure is connected with the battery unit, and the other end of each inspection structure is connected with the total control box through a wire.

Preferably, the fuel cell further comprises a threading plate, wherein two ends of the threading plate are respectively installed on two sides of the whole of the plurality of battery units, a plurality of through holes are formed in the threading plate, and the wires penetrate through the through holes and are connected with the main control box.

The utility model has the beneficial effects that:

according to the inspection structure, the two clamping arms are inserted into the inserting grooves, and the protrusions are arranged on the clamping arms, so that when the clamping arms are in the inserting grooves, the protrusions are clamped with the inserting grooves, the protrusions can be tightly contacted with the inserting grooves, an inspection piece is not easy to fall off, the inserting and pulling mode is simple, the connection effectiveness of the inspection structure is ensured, the connection speed of the inspection structure is improved, and the connection mode of the inspection structure is simplified.

The utility model also provides a fuel cell, which comprises a plurality of battery units, wherein each battery is connected with the inspection structure, so that the whole inspection result of the fuel cell is more accurate and effective, and the fuel cell is quicker when the inspection structure is connected or installed.

Drawings

FIG. 1 is an exploded view of a patrol structure provided by an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a patrol structure according to an embodiment of the present utility model;

fig. 3 is a schematic view of a fuel cell according to an embodiment of the present utility model;

fig. 4 is a schematic structural view of a threading plate according to an embodiment of the present utility model.

In the figure:

1000. a fuel cell;

100. a patrol structure;

10. inspection pieces; 11. a clamp arm; 111. a connection part; 1111. a first end; 1112. a second end; 112. a clamping part; 113. a protrusion; 12. a clamping space; 13. a conductive portion;

20. a bipolar plate; 21. a plug-in groove; 211. a groove;

200. a battery unit; 300. a master control box; 400. a wire; 500. a threading plate; 510. a via hole; 600. and a limiting piece.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The fuel cell generally comprises a plurality of battery units to achieve the purpose of improving the power supply capacity of the fuel cell, and in the working process of the fuel cell, the inspection of each battery unit is necessary, so that an important prompting effect is achieved on the working safety of the fuel cell, and once the battery units are inspected, workers can timely inspect the fuel cell to prevent the damage of the battery or cause safety problems.

The existing inspection structure uses spring pieces and holes preset in the bipolar plate to be fixed by elastic extrusion, and the spring positions are easy to fatigue after being used for a long time, so that the spring pieces and the bipolar plate cannot be fully contacted, and meanwhile, the possibility of falling off can occur; or the metal connecting piece is put in advance in the bipolar plate manufacturing process, then the metal connecting piece is welded with the wire for inspecting and collecting signals, and the manufacturing efficiency is low. The two inspection structures have certain defects in the connection mode, or inspection failure is caused by poor contact after long-term use, or the connection mode is troublesome.

In order to solve the above-mentioned problems, the present embodiment provides a patrol structure 100, which can ensure the close fit of the patrol structure 100 and simplify the installation mode of the patrol structure 100. As shown in fig. 1, the inspection structure 100 includes a bipolar plate 20 and at least two connected clamping arms 11, a clamping space 12 is formed between the at least two clamping arms 11, free ends of the at least two clamping arms 11 are provided with protrusions 113 protruding toward the clamping space 12, the bipolar plate 20 is provided with a socket 21, at least part of the inspection component 10 can be inserted into the socket 21, and the protrusions 113 are in clamping fit with the socket 21. By inserting the two clamping arms 11 into the inserting groove 21 and arranging the protrusions 113 on the clamping arms 11, when the clamping arms 11 are in the inserting groove 21, the protrusions 113 are clamped with the inserting groove 21, the protrusions 113 can be tightly contacted with the inserting groove 21, and a spring piece is not used, so that the inspection structure 100 is used for a long time, the fact that the contact between the inspection piece 10 and the bipolar plate 20 is not tight enough due to elastic failure of the spring piece is avoided, the long-time use of the inspection structure 100 is ensured, the inspection piece 10 and the bipolar plate 20 are still tightly contacted, and the connection effectiveness of the inspection structure 100 is ensured; and the plug mode is simple, the connection speed of the inspection structure 100 is improved, and the connection mode of the inspection structure 100 is simplified.

Optionally, the material of the inspection member 10 may be stainless steel, red copper, beryllium copper, etc., and in order to increase conductivity and corrosion resistance, the surface of the inspection member 10 may be subjected to plating treatment including silver plating, gold plating, titanium plating, etc.

In this embodiment, two clamping arms 11 are provided, and in other embodiments, a plurality of clamping arms 11 may be provided, and the plurality of clamping arms 11 are arranged in a divergent manner, so that the clamping effect can be improved, which is not limited herein.

Alternatively, the two clamping arms 11 are arranged in a U-shaped configuration, which is a good shape for clamping the bipolar plate 20. Correspondingly, the plugging groove 21 is matched with the shapes of the two clamping arms 11, namely, the plugging groove 21 is also U-shaped, the two clamping arms 11 clamp the middle vertical wall of the plugging groove 21, and the vertical wall is provided with a groove 211 matched with the protrusion 113 so as to form clamping connection with the protrusion 113.

Alternatively, the bipolar plate 20 includes an anode side and a cathode side, and the insertion groove 21 may be formed on the anode side or the cathode side, which is not limited herein.

Alternatively, the clip arms 11 include a connection portion 111 and a clip portion 112, the first ends 1111 of the connection portions 111 of at least two clip arms 11 intersect, the clip portion 112 is connected to the second end 1112 of the connection portion 111, and the protrusions 113 are disposed at the free ends of the clip portions 112.

Since the inspection part 10 is slightly deformed when being inserted into the insertion groove 21, the connection position of the at least two clamping arms 11 is easily broken, and in order to solve the above problem, the thickness of the first end 1111 is preferably greater than that of the second end 1112, so that the connection position of the at least two clamping arms 11 is stronger and is not easily broken.

Further, to better facilitate deformation of the inspection piece 10, the cross-sectional area of the clamping portion 112 gradually decreases from the second end 1112 to the free end of the clamping portion 112. Alternatively, as shown in fig. 2, the standing wall of the side of the clamping part 112 facing away from the clamping space 12 is inclined from the second end 1112 to the free end of the clamping part 112 toward the clamping space 12, so that the cross-sectional area of the clamping part 112 from the second end 1112 to the free end of the clamping part 112 is gradually reduced, and thus the inspection piece 10 is better inserted into the insertion groove 21 when being mounted. Specifically, the inclination angle of the vertical wall of the clamping portion 112 on the side facing away from the clamping space 12 ranges from 1 ° to 5 °, preferably from 1 ° to 2 °, so that a certain strength can be ensured, and the plugging resistance of the inspection piece 10 can be appropriately reduced.

Preferably, the connection portion 111 and the clamping portion 112 are smoothly connected to each other, so that bending damage at the bending angle due to stress concentration is prevented.

Preferably, the protrusion 113 is arc-shaped, so that when the inspection piece 10 is just inserted into the insertion groove 21, the protrusion enters the insertion groove 21 tangentially to the groove wall, facilitating the insertion process of the inspection piece 10, and the arc radius of the protrusion 113 is adaptively designed according to the width of the designed clamping part 112 that can be opened.

Alternatively, as shown in fig. 2, the dimensions of the insertion groove 21 corresponding to the projection 113 are larger than the dimensions of the free end of the clip arm 11, so that the projection 113 can smoothly move in the insertion groove 21 without being caught before being inserted into place.

Preferably, the inspection piece 10 includes a conductive portion 13, one end of the conductive portion 13 is connected to at least one of the clamping arms 11 and the other end is used for connecting the wire 400, and the conductive portion 13 is provided to facilitate the hand-held insertion of an operator into the insertion slot. In this embodiment, the conductive portion 13 is L-shaped, and in other embodiments, the conductive portion 13 may be linear, which is not limited herein.

Alternatively, the conductive portion 13 may be connected to the conductive wire 400 by using a wire-pressing terminal, soldering, quick-pull terminal, or the like, which is not limited herein.

As shown in fig. 3, the present embodiment further provides a fuel cell 1000, where the fuel cell 1000 includes a battery unit 200, a total control box 300, and the above-mentioned inspection structures 100, each inspection structure 100 is connected to the battery unit 200, and the other end of each inspection structure 100 is connected to the total control box 300 through a wire 400. Through the above arrangement, the whole inspection of the whole fuel cell 1000 is realized, so that the whole inspection result of the fuel cell 1000 is more accurate and effective, and the inspection structure 100 is more rapid in connection or installation.

Preferably, as shown in fig. 3 and 4, the above-mentioned fuel cell 1000 further includes a threading plate 500, two ends of the threading plate 500 are respectively mounted on two sides of the whole of the plurality of cells, a plurality of through holes 510 are formed in the threading plate 500, and the wires 400 are connected with the overall control box 300 through the through holes 510. Specifically, the limiting members 600 are respectively mounted at both sides of the entire plurality of battery cells 200, the battery cells 200 are fixed, and both ends of the threading plate 500 are respectively mounted on the two limiting members 600.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. Inspection structure, its characterized in that includes:

the inspection part (10) comprises at least two connected clamping arms (11), a clamping space (12) is formed between the at least two clamping arms (11), and protrusions (113) are arranged at the free ends of the at least two clamping arms (11) in a protruding mode towards the clamping space (12); and

the bipolar plate (20) is provided with a plug-in groove (21), at least part of the inspection piece (10) can be inserted into the plug-in groove (21), and the bulge (113) is in clamping fit with the plug-in groove (21).

2. The inspection structure according to claim 1, characterized in that the inspection piece (10) further comprises a conductive portion (13), one end of the conductive portion (13) is connected to at least one of the clamping arms (11) and the other end is used for connecting a wire (400).

3. The inspection structure according to claim 1, characterized in that said clamp arm (11) comprises:

a connecting portion (111), first ends (1111) of the connecting portions (111) of at least two of the clip arms (11) intersecting; and

a clamping part (112), wherein a second end (1112) of the connecting part (111) is connected with the clamping part (112), and the bulge (113) is arranged at the free end of the clamping part (112); the thickness of the first end (1111) is greater than the thickness of the second end (1112).

4. A patrol structure according to claim 3, wherein the standing wall of the side of the clamping part (112) facing away from the clamping space (12) is inclined towards the clamping space (12) from the second end (1112) to the free end of the clamping part (112).

5. The inspection structure according to claim 4, characterized in that the inclination of the standing wall of the clamping part (112) on the side facing away from the clamping space (12) ranges from 1 ° to 5 °.

6. A patrol structure according to claim 3, wherein the connection position of the connection part (111) and the clamping part (112) is smoothly transited.

7. The inspection structure according to any one of claims 1 to 6, characterized in that the protrusions (113) are arc-shaped.

8. The inspection structure according to any one of claims 1 to 6, characterized in that the dimensions of the insertion groove (21) in correspondence with the projection (113) are greater than the dimensions of the free end of the clamping arm (11).

9. Fuel cell comprising a plurality of battery cells (200) and a total control box (300), characterized in that the fuel cell further comprises a plurality of inspection structures according to any one of claims 1-8, one end of each inspection structure is connected with the battery cell (200), and the other end of each inspection structure is connected with the total control box (300) through a wire (400).

10. The fuel cell according to claim 9, further comprising a threading plate (500), wherein both ends of the threading plate (500) are respectively mounted on both sides of the whole of the plurality of battery units (200), a plurality of through holes (510) are formed in the threading plate (500), and the wires (400) are connected to the main control box (300) through the through holes (510).