CN212342869U

CN212342869U - Fuel cell stack inspection connector and fuel cell

Info

Publication number: CN212342869U
Application number: CN202021422691.1U
Authority: CN
Inventors: 李建; 彭太坤; 林海燕
Original assignee: Xing Wan Lian Electronics Co ltd
Current assignee: Xing Wan Lian Electronics Co ltd
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2021-01-12
Anticipated expiration: 2030-07-17

Abstract

The utility model discloses a fuel cell pile patrols and examines connector and fuel cell, wherein, this fuel cell pile patrols and examines the connector and includes connecting seat and conductive terminal, the connecting seat has mounting hole and spacing portion, the mounting hole has the inserted hole, the connecting seat is used for installing at the fuel cell pile. The conductive terminal is provided with an elastic section, the elastic section is inserted into the mounting hole from the insertion hole and is used for being abutted against a single cell of the fuel cell stack, and the conductive terminal is abutted against the limiting part so as to limit the conductive terminal to be separated from the mounting hole from the insertion hole. The utility model discloses technical scheme can improve the connection reliability that the fuel cell pile patrolled and examined the connector.

Description

Fuel cell stack inspection connector and fuel cell

Technical Field

The utility model relates to a fuel cell technical field, in particular to fuel cell pile patrols and examines connector and fuel cell.

Background

In the current fuel cell inspection connector, a terminal is generally made into a two-piece structure, so that the terminal clamps a single cell. However, in this structure, the single cell is clamped by the elastic structure of the terminal, the clamping force of the terminal is small, so that poor contact is likely to occur when the product vibrates, and the connection reliability of the inspection connector is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a fuel cell galvanic pile patrols and examines connector aims at improving the connection reliability that fuel cell galvanic pile patrolled and examined the connector.

In order to achieve the above object, the utility model provides a fuel cell stack inspection connector, include:

the connecting seat is provided with a mounting hole and a limiting part, the mounting hole is provided with an insertion hole, and the connecting seat is used for being mounted on the fuel cell stack; and the number of the first and second groups,

and the conductive terminal is provided with an elastic section, the elastic section is inserted into the mounting hole from the insertion hole and is used for abutting against a single cell of the fuel cell stack, and the conductive terminal abuts against the limiting part so as to limit the conductive terminal to be separated from the mounting hole from the insertion hole.

Optionally, the conductive terminal further includes a connecting section, the elastic section includes an elastic arm and an abutting portion, the elastic arm is connected to the connecting section, and is disposed at an included angle with the connecting section, and the abutting portion is connected to an end of the elastic arm away from the connecting section, and is used for abutting against the single cell of the fuel cell stack.

Optionally, the abutting portion is disposed in a bent manner, and one end of the abutting portion, which is far away from the elastic arm, extends toward the direction of the connecting section.

Optionally, the conductive terminal further includes a reinforcing portion, and the reinforcing portion is disposed on the elastic arm and extends along a length direction of the elastic arm.

Optionally, the reinforcement portion includes a first section and a second section, the first section is disposed on the elastic arm and extends toward the connecting section, and the second section is disposed on the connecting section and is connected to the first section.

Optionally, the connecting section has a first side surface and a second side surface opposite to each other, the elastic arm is inclined relative to the connecting section in a direction from the second side surface to the first side surface, and the second section is convexly disposed on the first side surface; and/or the reinforcing part is formed by integrally punching the elastic arm.

Optionally, the connecting section is provided with a clamping convex part, the limiting part is arranged on the hole wall of the mounting hole, and the clamping convex part is abutted against the surface of the limiting part, which faces away from the insertion hole.

Optionally, the clamping convex part is a spring plate, the spring plate is provided with a connecting end and a free end which are opposite, the connecting end is connected with the connecting section, and the free end is abutted against the limiting part.

Optionally, the clamping protrusion and the elastic arm are respectively protruded toward two opposite sides of the connecting section.

The utility model also provides a fuel cell, this fuel cell include that pile and fuel cell pile patrol and examine the connector, and the fuel cell pile patrol and examine the connector and include connecting seat and conductive terminal, the connecting seat has mounting hole and spacing portion, the mounting hole has the inserted hole, the connecting seat is used for installing at the fuel cell pile. The conductive terminal is provided with an elastic section, the elastic section is inserted into the mounting hole from the insertion hole and is used for being abutted against a single cell of the fuel cell stack, and the conductive terminal is abutted against the limiting part so as to limit the conductive terminal to be separated from the mounting hole from the insertion hole. The fuel cell stack inspection connector is mounted to the stack.

The utility model discloses technical scheme is through setting up the elasticity section on conductive terminal, inserts conductive terminal and locates in the mounting hole, fixes the connecting seat when the fuel cell pile again, can make the monocell and the elasticity section butt of fuel cell pile to extrude the elasticity section and take place elastic deformation towards the direction of inserted hole, because be equipped with spacing portion restriction conductive terminal on the connecting seat and break away from inserting the mouth the mounting hole, so can make the elasticity section remain elastic deformation's state throughout, the elasticity section has the trend of recovering towards monocell elasticity promptly all the time, thereby can guarantee elasticity section and monocell fully contact, improved the connection reliability that the connector was patrolled and examined to the fuel cell pile.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic view of an embodiment of a fuel cell stack inspection connector according to the present invention assembled with a stack;

FIG. 2 is a cut-away schematic view of the fuel cell stack routing inspection connector and stack of FIG. 1;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is a cross-sectional view of the fuel cell stack routing inspection connector and the stack of FIG. 1 taken in another direction;

FIG. 5 is an enlarged view at B in FIG. 4;

FIG. 6 is a schematic view of the conductive terminal shown in FIG. 5;

fig. 7 is a schematic structural view of the conductive terminal in fig. 6 from another perspective.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Connecting seat	222	Second side surface
11	Mounting hole	23	Clamping convex part
				12	Limiting part	231	Connecting end
20	Conductive terminal	232	Free end
				21	Elastic segment	24	Reinforcing part
211	Elastic arm	241	First stage
				212	Abutting part	242	Second section
22	Connecting segment	40	Fuel cell stack
				221	First side surface	41	Single cell

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a fuel cell pile patrols and examines connector (for the convenience of explanation, the connector is patrolled and examined for the following short) for fuel cell specifically, patrols and examines the connector and install in fuel cell's pile. Among them, the fuel cell may be a hydrogen fuel cell, a Direct Methanol Fuel Cell (DMFC), and the like.

In the embodiment of the present invention, please refer to fig. 1 to fig. 5 in combination (it should be understood that the fuel cell stack 40 shown in the figures is a partial schematic structure), the fuel cell stack inspection connector includes a connecting socket 10 and a conductive terminal 20, the connecting socket 10 has a mounting hole 11 and a limiting portion 12, the mounting hole 11 has an insertion hole (not shown), and the connecting socket 10 is used for being mounted on the fuel cell stack 40. The conductive terminal 20 has an elastic section 21, the elastic section 21 is inserted into the mounting hole 11 from the insertion opening and is used for abutting against the single cell 41 of the fuel cell stack 40 (it should be understood that the conductive terminal 20 is electrically connected with the pole piece of the single cell 41, that is, the elastic section 21 abuts against the pole piece of the single cell 41), and the conductive terminal 20 abuts against the limiting part 12 to limit the conductive terminal 20 to be separated from the mounting hole 11 from the insertion opening.

In this embodiment, the mounting hole 11 penetrates through the connecting socket 10, one end of the conductive terminal 20 away from the elastic section 21 is used for connecting with an electric wire, and at least the elastic section 21 of the conductive terminal 20 can be inserted into the mounting hole 11 through the insertion opening, i.e. only the elastic section 21 can be inserted into the mounting hole 11, or the conductive terminal 20 can be integrally inserted into the mounting hole 11. When the connecting holder 10 is mounted on the fuel cell stack 40, the single cell 41 may be inserted into the mounting hole 11 to abut against the elastic section 21, or the elastic section 21 may be extended from one end of the mounting hole 11 away from the insertion port to abut against the single cell 41 to extend out of the mounting hole 11. Or a slot (not shown) is arranged on one side of the connecting seat 10 departing from the insertion opening, the mounting hole 11 is communicated with the slot, when the connecting seat 10 is mounted on the fuel cell stack 40, the single cell 41 is inserted into the slot, and the elastic section 21 partially extends into the slot and abuts against the single cell 41. In addition, connection seat 10 and the manner of installing in fuel cell stack 40 have various forms, for example, a buckle may be provided on connection seat 10, and a slot may be provided on fuel cell stack 40, and the buckle and the slot are clamped to fix connection seat 10 on fuel cell stack 40. Or a slot is arranged on one side of the connecting seat 10, which is far away from the insertion opening, and the single battery 41 is inserted into the slot in an interference manner. The conductive terminal 20 further has a limiting shoulder, the wall of the mounting hole 11 has a limiting step facing the insertion opening, and the limiting shoulder abuts against the surface of the limiting step facing the insertion opening to limit the conductive terminal 20 from being excessively inserted into the mounting hole 11, that is, the conductive terminal 20 can be limited in the mounting hole 11 by the limiting part 12 and the limiting step. Of course, the limit step may not be provided. In addition, the connecting socket 10 is provided with a plurality of mounting holes 11, each mounting hole 11 is provided with a conductive terminal 20, and each conductive terminal 20 is correspondingly abutted against one single cell 41 of the fuel cell stack 40.

When the conductive terminal 20 is inserted into the mounting hole 11, the elastic section 21 can elastically deform in the direction of the insertion opening, and when the conductive terminal 20 abuts against the stopper 12, the conductive terminal 20 can be restricted from coming out of the mounting hole 11 from the insertion opening. When the connecting base 10 is mounted on the fuel cell stack 40, the single cell 41 of the fuel cell stack 40 is abutted against the elastic section 21, the elastic section 21 is elastically deformed in the direction of the insertion opening, and then the connecting base 10 is fixed with the fuel cell stack 40, so that the elastic section 21 always keeps the state of elastic deformation, namely the elastic section 21 always has the tendency of moving towards the single cell 41 and abutting against the single cell 41, and thus the elastic section 21 can be ensured to be fully contacted with the single cell 41.

The utility model discloses technical scheme is through setting up elasticity section 21 on conductive terminal 20, insert conductive terminal 20 and locate in mounting hole 11, fix connecting seat 10 when fuel cell pile 40 again, can make the monocell 41 and the 21 butt of elasticity section of fuel cell pile 40, and extrude elasticity section 21 and take place elastic deformation towards the direction of inserted hole, because be equipped with spacing portion 12 on the connecting seat 10 and restrict conductive terminal 20 and break away from mounting hole 11 from the entry of inserting, so can make elasticity section 21 remain elastic deformation's state throughout, elasticity section 21 has the trend towards monocell 41 elastic recovery all the time promptly, thereby can guarantee elasticity section 21 and the abundant contact of monocell 41, the connection reliability of fuel cell pile inspection connector has been improved.

Referring to fig. 3, fig. 6 and fig. 7, the structure of the elastic section 21 has various structures, for example, in an embodiment, the conductive terminal 20 further includes a connecting section 22, the elastic section 21 includes an elastic arm 211 and an abutting portion 212, the elastic arm 211 is connected to the connecting section 22 and forms an included angle with the connecting section 22, and the abutting portion 212 is connected to one end of the elastic arm 211 away from the connecting section 22 and is used for abutting against the single cell 41 of the fuel cell stack 40. Specifically, the connecting section 22 and the elastic arm 211 are integrally formed, the connecting section 22 is used for being connected with an electric wire and extends in a long strip shape along the length direction of the mounting hole 11, and the extending direction of the elastic arm 211 and the extending direction of the connecting section 22 form an included angle. When the junction holder 10 is mounted to the fuel cell stack 40, the abutting portion 212 abuts against the single cell 41 of the fuel cell stack 40, and the elastic arm 211 is elastically deformed in the direction of the insertion port by the pressing action of the single cell 41. The structure is simple and reliable, and the inspection connector is favorable for improving the connection reliability and reducing the cost. Wherein the angle between the elastic arm 211 and the connecting section 22 is greater than 0 ° and less than 180 °. In other embodiments, the elastic section 21 may be provided in a spring structure, or the elastic arm 211 may be bent in two sections.

In one embodiment, the abutting portion 212 is disposed in a curved manner, and an end of the abutting portion 212 away from the elastic arm 211 extends toward the direction of the connecting segment 22. Specifically, the abutting portion 212 is gradually bent toward the insertion opening in a direction away from the elastic arm 211, so that the surface of the abutting portion 212 abutting against the single cell 41 is an arc surface, and the abutting portion 212 makes line contact with the single cell 41, thereby ensuring the contact effect between the abutting portion 212 and the single cell 41, and reducing the friction force between the abutting portion 212 and the single cell 41, so that the single cell 41 presses the abutting portion 212 to deform the elastic arm 211. Of course, in other embodiments, the abutting portion 212 may be provided straight along the extending direction of the elastic arm 211. Or bent in the direction of the unit cell 41.

Further, in an embodiment, the conductive terminal 20 further includes a reinforcing portion 24, and the reinforcing portion 24 is disposed on the elastic arm 211 and extends along a length direction of the elastic arm 211. Specifically, the reinforcing portion 24 is provided protruding from the side surface of the elastic arm 211 and has an elongated shape. The reinforcement portion 24 thus provided can increase the rigidity of the elastic arm 211, that is, can increase the elastic force of the elastic arm 211, so that the urging force of the elastic arm 211 elastically returning toward the cell 41 is larger, and the contact effect between the abutting portion 212 and the cell 41 is better. Of course, in other embodiments, the reinforcement portion 24 may not be provided, and the elastic force may be increased by increasing the thickness of the elastic arm 211.

In one embodiment, the reinforcement portion 24 includes a first section 241 and a second section 242, the first section 241 is disposed on the elastic arm 211 and extends toward the connecting section 22, and the second section 242 is disposed on the connecting section 22 and is connected to the first section 241. For example, the elastic arm 211 and the connecting section 22 are provided with the reinforced part 24, and the reinforced part 24 on the elastic arm 211 and the reinforced part 24 on the connecting section 22 are connected with each other, that is, the reinforced part 24 is formed on the connecting section 22 and the elastic arm 211 by punching at the same time. It should be understood that when the elastic arm 211 is deformed by a force, the joint of the connecting segment 22 and the elastic arm 211 is a main deformation part, and the elastic force at the joint of the connecting segment 22 and the elastic arm 211 is set to be capable of being lifted, so that the elastic force of the elastic arm 211 elastically restoring towards the single cell 41 is larger, and the contact effect of the abutting part 212 and the single cell 41 is better.

In one embodiment, the connecting section 22 has a first side 221 and a second side 222 opposite to each other, the elastic arm 211 is inclined to the connecting section 22 in a direction pointing from the second side 222 to the first side 221, and the second section 242 is protruded from the first side 221. The first segment 241 is protruded from the surface of the elastic arm 211 connected to the first side 221. The elastic arm 211 is bent from the second side 222 toward the first side 221 relative to the connecting section 22, so that when the conductive terminal 20 is inserted into the mounting hole 11, the second side 222 is closer to the hole wall of the mounting hole 11 relative to the first side 221, i.e., a gap between the second side 222 and the hole wall of the mounting hole 11 is smaller than a gap between the first side 221 and another opposite hole wall of the mounting hole 11. Therefore, when the second section 242 is convexly arranged on the first side surface 221, the second section 242 can be prevented from interfering with the hole wall of the mounting hole 11 in the process of inserting the conductive terminal 20 into the mounting hole 11, which is beneficial to reducing the resistance when the conductive terminal 20 is inserted into the mounting hole 11 and facilitating the installation of the conductive terminal 20. Of course, in other embodiments, the second segment 242 may be protruded from the second side surface 222. In addition, the first segment 241 may be protruded from the surface of the elastic arm 211 connected to the second side 222.

In one embodiment, the reinforcement 24 is integrally stamped and formed with the spring arms 211. Specifically, the reinforcing portion 24 is integrally press-formed from the second side surface 222 toward the first side surface 221 by the elastic arm 211, so that the forming is convenient, the structure is simple, the number of processing steps and waste can be reduced, and the structural stability of the reinforcing portion 24 on the elastic arm 211 can be ensured. Of course, in other embodiments, the reinforcement portion 24 may be welded or 3D printed to the elastic arm 211.

In one embodiment, the connecting section 22 has a locking protrusion 23, the limiting portion 12 is disposed on the wall of the mounting hole 11, and the locking protrusion 23 abuts against a surface of the limiting portion 12 facing away from the insertion opening. Specifically, the engagement protrusion 23 is provided on the connecting section 22, so that the engagement protrusion 23 is provided on the conductive terminal 20, the stopper 12 is provided in the mounting hole 11, and when the conductive terminal 20 is inserted into the mounting hole and the engagement protrusion 23 is positioned on the side of the stopper 12 opposite to the insertion hole beyond the stopper 12, the engagement protrusion 23 can abut against the surface of the stopper 12 opposite to the insertion hole, thereby preventing the conductive terminal 20 from being separated from the mounting hole 11 from the insertion hole. That is, after the conductive terminal 20 is inserted into the mounting hole 11, the clamping protrusion 23 abuts against the limiting portion 12 for limiting, so as to facilitate the mounting of the conductive terminal 20. Of course, in other embodiments, the position-limiting portion 12 may be separated from the connecting socket 10, and after the conductive terminal 20 is inserted into the mounting hole 11, the position-limiting portion 12 is mounted at the insertion opening of the connecting socket 10 and abuts against the end of the conductive terminal 20.

In one embodiment, the clamping protrusion 23 is a spring, the spring has a connecting end 231 and a free end 232 opposite to each other, the connecting end 231 is connected to the connecting section 22, and the free end 232 is abutted to the position-limiting portion 12. Specifically, the connecting end 231 is located on the side of the spring plate away from the insertion port, and the free end 232 is located on the side of the spring plate close to the insertion port and is protruded from the side surface of the connecting section 22. In the process of inserting the conductive terminal 20 into the mounting hole 11, the free end 232 is pressed by the hole wall of the mounting hole 11 and deforms toward the direction close to the connecting section 22, and after the free end 232 passes over the limiting portion 12 and is located on the side of the limiting portion 12 back to the insertion hole, the free end 232 can elastically recover toward the direction away from the connecting section 22 and abut against the surface of the limiting portion 12 back to the insertion hole. So insert the in-process of mounting hole 11 at conductive terminal 20, reduced the butt effort of joint convex part 23 with the mounting hole 11 pore wall, avoided joint convex part 23 and the mounting hole 11 pore wall rigidity butt and leaded to conductive terminal 20 to be difficult to insert the condition of mounting hole 11, can guarantee that joint convex part 23 can be spacing with spacing portion 12 butt, also can make things convenient for conductive terminal 20's installation. Of course, in other embodiments, the snap-fit protrusion 23 may also be a bump structure.

In one embodiment, the snap projections 23 are integrally stamped and formed with the connecting section 22. That is, a part of the connecting section 22 is punched by a punching device to form a spring piece, a part protruding from the side of the connecting section 22 forms a free end 232, and the connecting end 231 is connected with the connecting section 22. So do not need extra shaping shell fragment, can reduce manufacturing procedure, the shaping is convenient, and the shell fragment is more firm with linkage segment 22's connection moreover, and the reliability is higher. Of course, in other embodiments, the connection end 231 may be welded to the connection segment 22.

In one embodiment, the latch protrusion 23 and the elastic arm 211 are respectively protruded toward two opposite sides of the connection segment 22. That is, the latch protrusion 23 is protruded from the second side 222, and since the elastic arm 211 is inclined relative to the connection segment 22 in the direction from the second side 222 to the first side 221, the elastic arm 211 is protruded from the first side 221 along the direction from the second side 222 to the first side 221. Since the clearance between the second side surface 222 and the wall of the hole 11 is smaller than the clearance between the first side surface 221 and the other opposite wall of the hole 11. Therefore, when the clamping convex part 23 is arranged on the second side surface 222, the protruding height of the clamping convex part 23 on the second side surface 222 can be reduced, the protruding height of the limiting part 12 on the wall of the mounting hole 11 can also be reduced, and the occupied space of the clamping convex part 23 and the limiting part 12 in the mounting hole 11 is reduced, so that the sizes of the mounting hole 11 and the connecting seat 10 are reduced. But also avoid the interference between the position-limiting part 12 and the elastic arm 211, so as to facilitate the installation of the conductive terminal 20 and the connecting socket 10. Of course, in other embodiments, the snap-in protrusion 23 may be protruded from the first side surface 221.

The utility model also provides a fuel cell (not shown), this fuel cell includes that pile and fuel cell pile patrol and examine the connector, and the concrete structure that this fuel cell pile patrols and examines the connector refers to above-mentioned embodiment, because this fuel cell has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and it is here no longer repeated. Wherein, the fuel cell stack inspection connector is installed on the stack. The fuel cell may be a hydrogen fuel cell, a Direct Methanol Fuel Cell (DMFC), or the like.

In this embodiment, the pile includes the mount and locates a plurality of monocells of mount, wherein, each monocell all includes proton exchange membrane, two gas diffusion layers, two catalyst layers and two pole pieces, two catalyst layers, two gas diffusion layers and two pole pieces are outwards arranged from proton exchange membrane's double-phase offsides in proper order, and proton exchange membrane presss from both sides and locates between two catalyst layers promptly, and two gas diffusion layers divide and locate one side that deviates from proton exchange membrane of two catalyst layers, and two pole pieces divide and locate one side that deviates from proton exchange membrane of two gas diffusion layers. The catalyst layer is composed of a catalyst, and the gas diffusion layer is composed of carbon paper or carbon cloth. The cathode of the single cell is formed between the proton exchange membrane and one of the pole pieces, and the anode of the single cell is formed between the proton exchange membrane and the other pole piece. When the single cell is abutted with the conductive terminal of the inspection connector, two pole pieces of the single cell are abutted with the conductive terminal to realize electric connection. Of course, in other embodiments, the stack may have other configurations, such as other conventional configurations.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A fuel cell stack inspection connector, comprising:

2. The fuel cell stack inspection connector according to claim 1, wherein the conductive terminal further includes a connecting section, the elastic section includes an elastic arm and an abutting portion, the elastic arm is connected to the connecting section and disposed at an included angle with the connecting section, and the abutting portion is connected to one end of the elastic arm away from the connecting section and used for abutting against a single cell of the fuel cell stack.

3. The fuel cell stack inspection connector according to claim 2, wherein the abutting portion is curved, and an end of the abutting portion away from the elastic arm extends in a direction of the connection section.

4. The fuel cell stack inspection connector according to claim 2, wherein the conductive terminal further includes a reinforcement portion disposed on the spring arm and extending along a length of the spring arm.

5. The fuel cell stack inspection connector according to claim 4, wherein the reinforcement portion includes a first section disposed on the resilient arm and extending toward the connection section, and a second section disposed on the connection section and connected to the first section.

6. The fuel cell stack inspection connector according to claim 5, wherein the connection segment has opposite first and second side surfaces, the resilient arm is inclined relative to the connection segment in a direction from the second side surface toward the first side surface, and the second segment is convexly disposed on the first side surface; and/or the presence of a gas in the gas,

the reinforcing part is formed by integrally punching the elastic arm.

7. The fuel cell stack inspection connector according to any one of claims 2 to 6, wherein the connecting section is provided with a clamping convex part, the limiting part is arranged on the hole wall of the mounting hole, and the clamping convex part abuts against the surface of the limiting part, which faces away from the insertion hole.

8. The fuel cell stack inspection connector according to claim 7, wherein the clamping protrusion is a spring plate having a connecting end and a free end opposite to each other, the connecting end is connected with the connecting section, and the free end abuts against the limiting portion.

9. The fuel cell stack inspection connector according to claim 7, wherein the snap protrusions and the resilient arms are disposed to protrude toward opposite sides of the connection section, respectively.

10. A fuel cell comprising a stack and the stack routing inspection connector of any one of claims 1 to 9, the stack routing inspection connector being mounted to the stack.