Fuel cell plate surface conductivity detection device

Abstract

An embodiment of the utility model provides a fuel cell plate surface conductivity detection device, which relates to the field of plate resistance detection. It aims to improve the problem that the test of the fixed measurement point of the plate resistance is not comprehensive and accurate enough. The fuel cell plate surface conductivity detection device includes a plurality of roller groups and at least one resistance measurement component, and a channel for transmitting the plate is formed between the plurality of first rollers and the plurality of second rollers; the resistance measurement component includes a first resistance measurement roller and a second resistance measurement roller arranged at intervals; the first resistance measurement roller and the second resistance measurement roller are respectively used to contact the surfaces on both sides of the plate passing through the channel. The resistance measurement roller is used to continuously and evenly press the plate to achieve an ideal detection density. While the resistance measurement roller is rolling, the resistance value of different positions on the plate surface can be continuously measured to improve the detection efficiency. It helps to significantly improve the overall performance of the product and reduce the defective rate.

Description

Technical Field

[0001] The utility model relates to the field of plate resistance detection, in particular to a device for detecting the surface conductivity of a fuel cell plate. Background Art

[0002] Testing the conductivity of the plate usually involves measuring its conductivity, which is a physical quantity that measures the ability of an object to conduct current. Existing testing methods mainly measure the conductivity of the plate surface by the resistance value on the plate surface. The measurement principle uses the voltammetry method, which applies a fixed voltage (such as 24V) between two points on the plate, and then measures the current between the two points. The surface resistance of the plate is calculated through R=U / I, that is, resistance=voltage / current. The larger the resistance, the worse the conductivity, and vice versa.

[0003] However, existing testing methods all use fixed measurement point testing, the measurement position is fixed, and the measurement data is not comprehensive and representative enough. Utility Model Content

[0004] The purpose of the utility model includes, for example, providing a device for detecting the surface conductivity of a fuel cell plate, which can improve the problem that the test of the plate resistance fixed measurement point is not comprehensive and accurate enough.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] An embodiment of the utility model provides a fuel cell plate surface conductivity detection device, comprising a plurality of roller groups and at least one resistance measuring component, wherein the plurality of roller groups are arranged side by side, each of the roller groups comprises a first roller and a second roller arranged at intervals, and a channel for transmitting the plate is formed between the plurality of the first rollers and the plurality of the second rollers; the resistance measuring component is arranged between two adjacent roller groups, and the resistance measuring component comprises a first resistance measuring roller and a second resistance measuring roller arranged at intervals; the first resistance measuring roller and the second resistance measuring roller are used to be connected to a resistance tester, and the first resistance measuring roller and the second resistance measuring roller are respectively used to contact the surfaces on both sides of the plate passing through the channel to measure the resistance of the plate.

[0007] In addition, the fuel cell plate surface conductivity detection device provided by the embodiment of the utility model may also have a second additional technical feature:

[0008] Optionally, the positions of the first resistance measuring roller and the second resistance measuring roller of each resistance measuring assembly along the axial direction of the first roller and the second roller are adjustable.

[0009] Optionally, the number of the resistance measuring components is at least two; each of the resistance measuring components is disposed between two adjacent roller groups; and at least two of the resistance measuring components are staggered along the axial directions of the first roller and the second roller.

[0010] Optionally, the plurality of roller groups are divided into a detection area and a displacement retention area along the extension direction of the channel; all the resistance measuring components are arranged between two adjacent roller groups in the detection area, and the displacement retention area is used to receive the electrode plate passing through the resistance measuring component; the plurality of roller groups are used to transport the electrode plate in the channel to reciprocate between the detection area and the displacement retention area.

[0011] Optionally, the fuel cell plate surface conductivity detection device also includes a mounting seat and multiple transmission mechanisms; multiple first rollers and multiple second rollers are rotatably arranged on the mounting seat, and two adjacent second rollers are connected by the transmission mechanism to drive the multiple second rollers to rotate synchronously.

[0012] Optionally, the resistance measuring component also includes a first track and a second track; the first track and the second track are arranged side by side and spaced between two adjacent roller groups, and the first track and the second track both extend along the axial direction of the first roller and the second roller; the first resistance measuring roller is slidably connected to the first track, and the second resistance measuring roller is slidably connected to the second track.

[0013] Optionally, the resistance measuring component also includes a first sliding member, a first spring, a second sliding member and a second spring; the first sliding member is slidably connected to the first track, and the first resistance measuring roller is installed on the first sliding member through the first spring; the second sliding member is slidably connected to the second track, and the second resistance measuring roller is installed on the second sliding member through the second spring; the first spring and the second spring have a movement tendency to drive the first resistance measuring roller and the second resistance measuring roller to approach each other.

[0014] Optionally, the resistance measuring assembly also includes a first pendulum rod and a second pendulum rod; one end of the first pendulum rod is hinged to the first sliding member, the middle part of the first pendulum rod is connected to the first sliding member via the first spring, and the first resistance measuring roller is rotatably installed at an end of the first pendulum rod away from the first sliding member; one end of the second pendulum rod is hinged to the second sliding member, the middle part of the second pendulum rod is connected to the second sliding member via the second spring, and the second resistance measuring roller is rotatably installed at an end of the second pendulum rod away from the second sliding member.

[0015] Optionally, the fuel cell plate surface conductivity detection device also includes a loading mechanism; the loading mechanism includes a loading platform and a loading conveyor belt; the loading platform is arranged upstream of the plurality of roller groups, the loading conveyor belt is arranged on the loading platform, the loading conveyor belt is connected with the channel, and the loading conveyor belt is used to transfer the plate into the channel.

[0016] Optionally, the fuel cell plate surface conductivity detection device also includes a pushing mechanism; the pushing mechanism is arranged on the loading platform, and the pushing mechanism is located on one side of the loading conveyor belt, and the pushing mechanism is used to extend in a direction perpendicular to the loading conveyor belt to push and adjust the position of the plate, or retract.

[0017] The beneficial effects of the fuel cell plate surface conductivity detection device of the embodiment of the utility model include, for example:

[0018] A fuel cell plate surface conductivity detection device includes a plurality of roller groups and at least one resistance measuring component, wherein the plurality of roller groups are arranged side by side, each roller group includes a first roller and a second roller arranged at intervals, and a channel for transmitting the plate is formed between the plurality of first rollers and the plurality of second rollers; the resistance measuring component is arranged between two adjacent roller groups, and the resistance measuring component includes a first resistance measuring roller and a second resistance measuring roller arranged at intervals; the first resistance measuring roller and the second resistance measuring roller are used to be connected to a resistance tester, and the first resistance measuring roller and the second resistance measuring roller are respectively used to contact the surfaces on both sides of the plate passing through the channel to measure the resistance of the plate.

[0019] Use the resistance measuring roller to continuously and evenly press the plate to achieve the ideal detection density. While the resistance measuring roller is rolling, the resistance tester will perform real-time online detection along the direction of the plate's movement. It can continuously measure the resistance value of different positions on the plate surface under contact and applying a certain pressure, thereby improving the detection efficiency. This helps to significantly improve the overall performance of the product and reduce the defective product rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 An axial side view of a device for detecting the surface conductivity of a fuel cell plate provided by an embodiment of the utility model;

[0022] Figure 2 A partial structural schematic diagram of a fuel cell plate surface conductivity detection device provided by an embodiment of the utility model;

[0023] Figure 3 for Figure 2 A partial enlarged view of middle A;

[0024] Figure 4 A front view of a roller assembly and a resistance measurement assembly in a fuel cell plate surface conductivity detection device provided in an embodiment of the utility model.

[0025] Icons: 10-fuel cell plate surface conductivity detection device; 100-roller assembly; 110-first roller; 120-second roller; 130-channel; 200-resistance measurement assembly; 210-first resistance measurement roller; 211-second resistance measurement roller; 220-first track; 221-second track; 230-first sliding member; 240-first spring; 250-second sliding member; 260-second spring; 270-first swing arm; 271-second swing arm; 300-detection area; 400-displacement retention area; 500-mounting seat; 510-transmission mechanism; 600-feeding mechanism; 610-feeding platform; 620-feeding conveyor belt; 700-pushing mechanism. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] In the description of the present utility model, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present utility model.

[0030] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0031] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0032] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The embodiment of the utility model provides a fuel cell plate surface conductivity detection device 10, comprising a plurality of roller groups 100 and at least one resistance measuring component 200, wherein the plurality of roller groups 100 are arranged side by side, each roller group 100 comprises a first roller 110 and a second roller 120 arranged at intervals, and a channel 130 for transmitting the plate is formed between the plurality of first rollers 110 and the plurality of second rollers 120; the resistance measuring component 200 is arranged between two adjacent roller groups 100, and the resistance measuring component 200 comprises a first resistance measuring roller 210 and a second resistance measuring roller 211 arranged at intervals; the first resistance measuring roller 210 and the second resistance measuring roller 211 are used to be connected to a resistance tester, and the first resistance measuring roller 210 and the second resistance measuring roller 211 are respectively used to contact the surfaces on both sides of the plate passing through the channel 130 to measure the resistance of the plate.

[0033] Specifically, the plurality of first rollers 110 are arranged above the plurality of second rollers 120, and a channel 130 is formed between the plurality of first rollers 110 and the plurality of second rollers 120. The plate is transported in the channel 130. During the transport process, the plate passes between the first resistance measuring roller 210 and the second resistance measuring roller 211, and the first resistance measuring roller 210 and the second resistance measuring roller 211 are in contact with the surface of the plate to measure the resistance of the plate.

[0034] During the plate resistance measurement process, the first resistance measuring roller 210 and the second resistance measuring roller 211 are used to continuously and evenly press the plate to achieve an ideal detection density. While the first resistance measuring roller 210 and the second resistance measuring roller 211 are rolling the plate, the resistance tester will perform real-time online detection along the direction of movement of the plate, and can continuously measure the resistance values ​​at different positions on the surface of the plate under the condition of contact and applying a certain pressure. The continuous resistance data obtained in this way is transmitted to the control system in real time. By processing and analyzing these data, the system can quickly identify whether the surface resistance of the plate is uniform and whether there are abnormal areas, and adjust the production process parameters accordingly to ensure the consistency and stability of product quality. Comprehensively improving the efficiency and accuracy of resistance detection will help improve the overall performance of the product and reduce the defective rate, which is of great significance for large-scale industrial production.

[0035] Reference Figure 2 , Figure 3 and Figure 4 In this embodiment, the positions of the first resistance measuring roller 210 and the second resistance measuring roller 211 of each resistance measuring assembly 200 along the axial direction of the first roller 110 and the second roller 120 are adjustable.

[0036] The axial position of the resistance measuring component 200 along the roller group 100 is adjustable, that is, the resistance measuring component 200 can be adjusted relative to the width direction of the plate, and the resistance measuring component 200 can measure the resistance values ​​at different positions in the width direction of the plate; the movement of the roller group 100 can measure the resistance values ​​at different positions in the length direction of the plate. The resistance detection of the entire plate surface is realized through the roller group 100 and the resistance measuring component 200, thereby improving the resistance detection efficiency and quality.

[0037] Reference Figure 2 , Figure 3 and Figure 4 In this embodiment, the number of resistance measuring components 200 is at least two; each resistance measuring component 200 is arranged between two adjacent roller groups 100; at least two resistance measuring components 200 are staggered along the axial positions of the first roller 110 and the second roller 120.

[0038] The number of resistance measuring components 200 can be one group, two groups, three groups, or more than three groups. If one group of resistance measuring components 200 is set, the position of the resistance measuring components 200 along the axial direction is fixed during the process of conveying the electrode plate along the channel 130, and a group of data in the length direction of the electrode plate can be detected; the next time the electrode plate is conveyed in the reverse direction, after the resistance measuring components 200 are adjusted axially, another group of data in the length direction of the electrode plate can be detected. When two or more resistance measuring components 200 are set, and the axial positions of the resistance measuring components 200 are different, the electrode plate is conveyed along the channel 130 once, and two groups of data, three groups, or more than three groups of data in the length direction of the electrode plate can be measured. If there are several groups of resistance measuring components 200 staggered along the axial direction, several groups of data in the length direction of the electrode plate can be measured at one time, further improving the detection efficiency.

[0039] Reference Figure 1 and Figure 2 In this embodiment, multiple roller groups 100 are divided into a detection area 300 and a displacement retention area 400 along the extension direction of the channel 130; all resistance measuring components 200 are arranged between two adjacent roller groups 100 in the detection area 300, and the displacement retention area 400 is used to receive the electrode plate passing through the resistance measuring component 200; multiple roller groups 100 are used to transport the electrode plate in the channel 130 to move back and forth between the detection area 300 and the displacement retention area 400.

[0040] The detection area 300 is provided with a resistance measuring component 200, and the displacement retention area 400 is not provided with a resistance measuring component 200. The detection area 300 transports the electrode plate while using the resistance measuring roller to perform resistance detection. The displacement retention area 400 receives the electrode plate that has been tested for resistance. In the initial state, the electrode plate is transported from the detection area 300 to the displacement retention area 400. In the detection area 300, the resistance measuring component 200 measures the resistance of the electrode plate. When the electrode plate is transported to the displacement retention area 400, a resistance detection is completed; the roller group 100 transmits in the reverse direction and transports the electrode plate from the displacement retention area 400 to the detection area 300. At this time, the axial position of the resistance measuring component 200 is adjusted, and the resistance measuring component 200 measures the resistance of the electrode plate transported to the detection area 300.

[0041] Reference Figure 1 and Figure 2 In this embodiment, the fuel cell plate surface conductivity detection device 10 also includes a mounting seat 500 and a plurality of transmission mechanisms 510; a plurality of first rollers 110 and a plurality of second rollers 120 are rotatably arranged on the mounting seat 500, and two adjacent second rollers 120 are connected by the transmission mechanism 510 to drive the plurality of second rollers 120 to rotate synchronously.

[0042] The transmission mechanism 510 can be a transmission belt or a transmission chain. Gears are fixed at the same end of the first roller 110 and the second roller 120, and the plurality of second rollers 120 are driven by the transmission mechanism 510 to achieve synchronous rotation, so as to achieve uniform speed transportation of the electrode plates.

[0043] Reference Figure 2 , Figure 3 and Figure 4 In this embodiment, the resistance measuring component 200 also includes a first track 220 and a second track 221; the first track 220 and the second track 221 are arranged side by side and spaced apart between two adjacent roller groups 100, and the first track 220 and the second track 221 both extend along the axial direction of the first roller 110 and the second roller 120; the first resistance measuring roller 210 is slidably connected to the first track 220, and the second resistance measuring roller 211 is slidably connected to the second track 221.

[0044] Specifically, both ends of the first track 220 are fixed on the mounting seat 500, and both ends of the second track 221 are fixed on the mounting seat 500. The first resistance measuring roller 210 and the second resistance measuring roller 211 are driven by the driving mechanism to move along the first track 220 and the second track 221, respectively, to achieve axial position adjustment.

[0045] Specifically, the first resistance measuring roller 210 may be driven to slide along the first track 220 , and the second resistance measuring roller 211 may be driven to slide along the second track 221 , by a lead screw.

[0046] Reference Figure 2 , Figure 3 and Figure 4 In this embodiment, the resistance measuring component 200 also includes a first sliding member 230, a first spring 240, a second sliding member 250 and a second spring 260; the first sliding member 230 is slidably connected to the first track 220, and the first resistance measuring roller 210 is installed on the first sliding member 230 through the first spring 240; the second sliding member 250 is slidably connected to the second track 221, and the second resistance measuring roller 211 is installed on the second sliding member 250 through the second spring 260; the first spring 240 and the second spring 260 have a movement tendency to drive the first resistance measuring roller 210 and the second resistance measuring roller 211 to approach each other.

[0047] The first spring 240 and the second spring 260 are used to allow the distance between the first resistance measuring roller 210 and the second resistance measuring roller 211 to be elastically changed. When the electrode plate passes between the first resistance measuring roller 210 and the second resistance measuring roller 211, the elastic force can be used to ensure close pressing contact with the electrode plate to improve the resistance detection accuracy without damaging the surface of the electrode plate.

[0048] Specifically, the first spring 240 makes the first resistance measuring roller 210 tend to move downward, and the second spring 260 makes the second resistance measuring roller 211 tend to move upward, so that the first resistance measuring roller 210 and the second resistance measuring roller 211 press the electrode plate.

[0049] Reference Figure 2 , Figure 3 and Figure 4 In this embodiment, the resistance measuring component 200 also includes a first swing rod 270 and a second swing rod 271; one end of the first swing rod 270 is hinged to the first sliding member 230, and the middle part of the first swing rod 270 is connected to the first sliding member 230 through a first spring 240, and the first resistance measuring roller 210 is rotatably installed at one end of the first swing rod 270 away from the first sliding member 230; one end of the second swing rod 271 is hinged to the second sliding member 250, and the middle part of the second swing rod 271 is connected to the second sliding member 250 through a second spring 260, and the second resistance measuring roller 211 is rotatably installed at one end of the second swing rod 271 away from the second sliding member 250.

[0050] The first sliding member 230 is vertically slidably disposed on the first track 220, the first swing rod 270 is disposed at an angle to the first sliding member 230, and the first swing rod 270 and the first sliding member 230 are connected via a first spring 240. The second sliding member 250 is vertically slidably disposed on the second track 221, the second swing rod 271 is disposed at an angle to the second sliding member 250, and the second swing rod 271 and the second sliding member 250 are connected via a second spring 260. The first spring 240 and the second spring 260 drive one end of the first swing rod 270 and the second swing rod 271 to approach each other, thereby driving the first resistance measuring roller 210 and the second resistance measuring roller 211 to approach each other.

[0051] Reference Figure 1 and Figure 2 In this embodiment, the fuel cell plate surface conductivity detection device 10 also includes a loading mechanism 600; the loading mechanism 600 includes a loading platform 610 and a loading conveyor belt 620; the loading platform 610 is arranged upstream of the multiple roller groups 100, and the loading conveyor belt 620 is arranged on the loading platform 610, and the loading conveyor belt 620 is connected to the channel 130, and the loading conveyor belt 620 is used to transfer the plate into the channel 130.

[0052] There are two feeding conveyors 620, which are arranged side by side and spaced apart, and the two feeding conveyors 620 are synchronously conveyed. The two sides of the plate are placed on the two feeding conveyors 620, and the two feeding conveyors 620 transfer the plate to the channel 130, and then the roller group 100 transfers it.

[0053] Reference Figure 1 and Figure 2 In this embodiment, the fuel cell plate surface conductivity detection device 10 also includes a pushing mechanism 700; the pushing mechanism 700 is arranged on the loading platform 610, and the pushing mechanism 700 is located on one side of the loading conveyor belt 620, and the pushing mechanism 700 is used to extend in a direction perpendicular to the loading conveyor belt 620 to push and adjust the position of the plate, or retract it.

[0054] The pushing mechanism 700 is used to correct the position of the electrode plate on the two feeding conveyor belts 620, so that the electrode plate is located at a position directly opposite to the two feeding conveyor belts 620, and prevent the electrode plate from being offset during the transmission process. Specifically, the pushing mechanism 700 includes a power cylinder and a pushing block, the power cylinder is connected to the pushing block, and the power cylinder drives the pushing block to reciprocate in a direction perpendicular to the feeding conveyor belt 620.

[0055] According to a fuel cell plate surface conductivity detection device 10 provided in this embodiment, the working principle of the fuel cell plate surface conductivity detection device 10 is: linear continuous resistance detection of the plate surface is performed by a resistance measuring roller during the process of rolling the plate.

[0056] The fuel cell plate surface conductivity detection device 10 provided in this embodiment has at least the following advantages:

[0057] During the plate resistance measurement process, a resistance measuring roller is used to continuously and evenly roll the plate to achieve an ideal detection density. While the resistance measuring roller is rolling, the resistance tester will perform real-time online detection along the direction of the plate movement, and can continuously measure the resistance values ​​at different positions on the plate surface while in contact and applying a certain pressure. The continuous resistance data obtained in this way is transmitted to the control system in real time. The system processes and analyzes these data to quickly identify whether the plate surface resistance is uniform and whether there are abnormal areas, and adjust the production process parameters accordingly to ensure the consistency and stability of product quality. This helps to significantly improve the overall performance of the product and reduce the defective rate.

[0058] By measuring the conductivity of the plate surface, the cleanliness of the plate surface can be ensured, and the effect of welding and coating can be guaranteed. Surface resistivity is an important indicator to characterize the surface cleanliness and conductivity of the material. Higher surface resistance often means the presence of contaminants or oxide layers, which will affect the subsequent welding quality and the bonding strength between the coating and the substrate. By real-time monitoring of the changes in the surface resistance of the plate, surface contamination can be detected and cleaned in time, thereby improving the quality of the welding point and the adhesion of the coating.

[0059] By measuring the conductivity of the plate surface, the surface quality of the coating can be ensured, and products with poor conductivity can be detected and eliminated. A coating with good conductivity is essential for the performance of electronic devices. By detecting the surface resistance of the plate after plating, the uniformity and integrity of the coating can be accurately evaluated. If the resistance of a certain part is too high, it may mean that the coating is too thin, has pores, is falling off, or contains impurities. Such products can be screened out and eliminated through resistance testing, thereby ensuring that the electrical performance of the final product is stable and reliable.

[0060] By detecting whether the surface conductivity of the plate is abnormal, the plate status, coating equipment status, cleaning equipment status, and whether the coating material is abnormal can be determined. By monitoring the changes in the surface resistance of the plate at different processing stages (such as after cleaning, before and after coating), not only can the quality of the plate itself be evaluated, but also the status of each link in the entire production process can be reflected. For example, if the resistance of the plate after cleaning fails to drop to the expected level, it may be that the cleaning equipment fails or the cleaning agent formula is inappropriate; similarly, if the resistance fluctuates greatly after coating, it may indicate that there is a problem with the coating equipment or the quality of the coating material is unstable. This indirect diagnostic function plays an important role in optimizing process parameters, preventing failures and improving production efficiency.

[0061] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A fuel cell plate surface conductivity detection device, characterized in that: include: A plurality of roller groups (100), wherein the plurality of roller groups (100) are arranged side by side, each of the roller groups (100) comprises a first roller (110) and a second roller (120) arranged at intervals, and a channel (130) for transmitting the electrode plates is formed between the plurality of first rollers (110) and the plurality of second rollers (120); and at least one resistance measuring component (200), the resistance measuring component (200) being arranged between two adjacent roller groups (100), the resistance measuring component (200) comprising a first resistance measuring roller (210) and a second resistance measuring roller (211) arranged at an interval; the first resistance measuring roller (210) and the second resistance measuring roller (211) being used to connect to a resistance tester, and the first resistance measuring roller (210) and the second resistance measuring roller (211) being used to contact the surfaces on both sides of the electrode plate passing through the channel (130) respectively, so as to measure the resistance of the electrode plate.

2. The fuel cell plate surface conductivity detection device according to claim 1, characterized in that: The positions of the first resistance measuring roller (210) and the second resistance measuring roller (211) of each resistance measuring assembly (200) along the axial direction of the first roller (110) and the second roller (120) are adjustable.

3. The fuel cell plate surface conductivity detection device according to claim 2, characterized in that: The number of the resistance measuring components (200) is at least two; each of the resistance measuring components (200) is arranged between two adjacent roller groups (100); and at least two of the resistance measuring components (200) are staggered along the axial direction of the first roller (110) and the second roller (120).

4. The fuel cell plate surface conductivity detection device according to claim 3, characterized in that: The plurality of roller groups (100) are divided into a detection area (300) and a displacement retention area (400) along the extension direction of the channel (130); all the resistance measurement components (200) are arranged between two adjacent roller groups (100) in the detection area (300); the displacement retention area (400) is used to receive the electrode plate passing through the resistance measurement component (200); and the plurality of roller groups (100) are used to transport the electrode plate in the channel (130) to reciprocate between the detection area (300) and the displacement retention area (400).

5. The fuel cell plate surface conductivity detection device according to any one of claims 1 to 4, characterized in that: The fuel cell plate surface conductivity detection device also includes a mounting seat (500) and a plurality of transmission mechanisms (510); a plurality of the first rollers (110) and a plurality of the second rollers (120) are rotatably arranged on the mounting seat (500), and two adjacent second rollers (120) are connected by transmission via the transmission mechanism (510) to drive the plurality of second rollers (120) to rotate synchronously.

6. The fuel cell plate surface conductivity detection device according to any one of claims 2 to 4, characterized in that: The resistance measuring assembly (200) further comprises a first track (220) and a second track (221); the first track (220) and the second track (221) are arranged side by side and spaced apart between two adjacent roller groups (100), and the first track (220) and the second track (221) both extend along the axial direction of the first roller (110) and the second roller (120); the first resistance measuring roller (210) is slidably connected to the first track (220), and the second resistance measuring roller (211) is slidably connected to the second track (221).

7. The fuel cell plate surface conductivity detection device according to claim 6, characterized in that: The resistance measuring assembly (200) further comprises a first sliding member (230), a first spring (240), a second sliding member (250) and a second spring (260); the first sliding member (230) is slidably connected to the first track (220), and the first resistance measuring roller (210) is mounted on the first sliding member (230) via the first spring (240); the second sliding member (250) is slidably connected to the second track (221), and the second resistance measuring roller (211) is mounted on the second sliding member (250) via the second spring (260); the first spring (240) and the second spring (260) have a movement tendency of driving the first resistance measuring roller (210) and the second resistance measuring roller (211) to move closer to each other.

8. The fuel cell plate surface conductivity detection device according to claim 7, characterized in that: The resistance measuring assembly (200) further comprises a first swing rod (270) and a second swing rod (271); one end of the first swing rod (270) is hinged to the first sliding member (230), the middle portion of the first swing rod (270) is connected to the first sliding member (230) via the first spring (240), and the first resistance measuring roller (210) is rotatably mounted on an end of the first swing rod (270) away from the first sliding member (230); one end of the second swing rod (271) is hinged to the second sliding member (250), the middle portion of the second swing rod (271) is connected to the second sliding member (250) via the second spring (260), and the second resistance measuring roller (211) is rotatably mounted on an end of the second swing rod (271) away from the second sliding member (250).

9. The fuel cell plate surface conductivity detection device according to any one of claims 1 to 4, characterized in that: The fuel cell plate surface conductivity detection device also includes a loading mechanism (600); the loading mechanism (600) includes a loading platform (610) and a loading conveyor belt (620); the loading platform (610) is arranged upstream of the plurality of roller groups (100); the loading conveyor belt (620) is arranged on the loading platform (610); the loading conveyor belt (620) is connected to the channel (130); and the loading conveyor belt (620) is used to transfer the plate into the channel (130).

10. The fuel cell plate surface conductivity detection device according to claim 9, characterized in that: The fuel cell plate surface conductivity detection device also includes a pushing mechanism (700); the pushing mechanism (700) is arranged on the loading platform (610), and the pushing mechanism (700) is located on one side of the loading conveyor belt (620); the pushing mechanism (700) is used to extend in a direction perpendicular to the loading conveyor belt (620) to push and adjust the position of the plate, or retract.

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