Inspection device for fuel cell and fuel cell

Abstract

The application discloses a kind of fuel cell's inspection device and fuel cell, it is related to battery inspection technical field, wherein, the inspection device of fuel cell includes main body, plug connector and sealing structure, multiple through installation channels are separately provided on main body, installation channel includes sealing section and connecting section;Plug connector includes contact terminal and transmission line, contact terminal includes connecting part and contact part, when contact terminal is inserted into installation channel, connecting part is correspondingly arranged in sealing section, and contact part is correspondingly arranged in connecting section;Connecting part forms through mounting hole, and transmission line extends into mounting hole;Sealing structure is sleeved on the outer periphery of transmission line, sealing structure is made of elastic material, and the outer diameter of sealing structure is greater than the inner diameter of sealing section.The application realizes the plugging of water vapor by the cooperation of sealing structure and installation channel, avoids the corrosion and oxidation of water vapor into installation channel to contact terminal, transmission line and main body, prolongs the service life time of voltage inspection device.

Description

Technical Field

[0001] This invention relates to the field of battery inspection technology, and in particular to an inspection device for a fuel cell and a fuel cell. Background Technology

[0002] A fuel cell stack consists of multiple individual cells stacked sequentially. The voltage of each individual cell is susceptible to fluctuations due to changes in the operating environment and conditions. To ensure the stable operation of the fuel cell system, it is necessary to monitor the voltage of each individual cell in real time and transmit the collected voltage signals to the fuel cell controller. This allows for accurate assessment of the cell's operating status and the development of appropriate response strategies. Currently, voltage monitoring devices are typically connected to the fuel cell stack to achieve precise acquisition and transmission of the voltage of each individual cell within the stack.

[0003] In existing technologies, during the use of customer fuel cell stacks, the air in the stack core contains some moisture, and some moisture will seep out of the stack core during operation, resulting in high humidity in the stack core. Currently used voltage inspection devices are basically not waterproof. Voltage inspection devices are in a high humidity and high temperature environment for a long time, which will accelerate the oxidation of the metal in the voltage inspection device, reduce the insulation strength of the plastic, and shorten the service life of the voltage inspection device. Summary of the Invention

[0004] The main objective of this invention is to propose a fuel cell inspection device and a fuel cell, aiming to solve the problem of short service life of voltage inspection devices in high humidity environments in the prior art.

[0005] To achieve the above objectives, the present invention proposes a fuel cell inspection device, comprising:

[0006] The main body has multiple through-type installation channels spaced apart on it, and each installation channel includes a sealing section and a connecting section;

[0007] A connector, comprising a contact terminal and a transmission line, wherein the contact terminal comprises a connecting portion and a contact portion, the contact terminal being inserted from one end of the mounting channel and extending from the other end, such that the contact portion abuts against the electrode of the fuel cell; when the contact terminal is inserted into the mounting channel, the connecting portion is correspondingly disposed within the sealing section, and the contact portion is correspondingly disposed within the connecting section;

[0008] The connecting portion forms a through mounting hole, and the transmission line extends into the mounting hole and is electrically connected to the contact terminal;

[0009] A sealing structure is sleeved on the outer periphery of the transmission line, and at least a portion of the sealing structure is sandwiched between the connection portion and the transmission line. The sealing structure is made of an elastic material, and the outer diameter of the sealing structure is larger than the inner diameter of the sealing section, so that the sealing structure abuts against the inner wall of the sealing section.

[0010] In one embodiment, the connecting portion includes a conductive section and a fixing section. One end of the conductive section is connected to the contact portion, and the conductive section forms the mounting hole. The fixing section is connected to the end of the conductive section away from the contact portion, and the fixing section is arranged in a ring and surrounds the outer periphery of the transmission line.

[0011] In one embodiment, the transmission line includes an outer sheath and a core, the fixing section surrounds the outer periphery of the outer sheath, and the core extends into the mounting hole and is electrically connected to the conducting section.

[0012] In one embodiment, the sealing structure includes a sealing ring and a clamping section, the fixing section being spaced apart from the outer skin to form a gap, the clamping section extending into the gap and abutting against the fixing section and the outer skin respectively, and the sealing ring being connected to the side of the clamping section away from the fixing section.

[0013] In one embodiment, the sealing ring includes two sealing rings stacked along the extension direction of the transmission line. The outer diameter of each sealing ring gradually decreases from the middle to both ends along the extension direction of the transmission line, and the inner diameter of each sealing ring gradually increases from the middle to both ends along the extension direction of the transmission line, so that the inner surface of each sealing ring protrudes inward and abuts against the outer skin, and the outer surface of each sealing ring protrudes outward and abuts against the sealing section.

[0014] In one embodiment, the fixed segment and the conductive segment are spaced apart along the extension direction of the transmission line, and the fixed segment and the conductive segment are connected by a connecting bridge, and the clamping segment extends toward the conductive segment to be flush with the end of the outer skin.

[0015] In one embodiment, the fixing segment includes a first body and two first clamping arms. The two first clamping arms are spaced apart on the first body along the extension direction of the transmission line, and the two first clamping arms are respectively disposed on opposite sides of the first body. Each first clamping arm is bent toward the other first clamping arm so that the first body and the two first clamping arms form a ring structure, and each first clamping arm abuts against the clamping segment.

[0016] In one embodiment, the conductive section includes a second body and two second clamping arms. The two second clamping arms are respectively disposed on opposite sides of the second body. Each second clamping arm is bent toward the other second clamping arm and abuts against the second body near the middle to form two tangent arc-shaped structures. The end of each second clamping arm away from the second body abuts against the wire core.

[0017] In one embodiment, a backstop groove is provided on one inner wall of the connecting segment, and a buckle is provided on the side of the contact portion facing the backstop groove. The buckle includes an elastic arm and a snap-fit ​​connector. One end of the elastic arm is connected to the contact portion, and the elastic arm is inclined from the contact portion toward the connecting portion in a direction away from the contact portion. The snap-fit ​​connector is provided at the other end of the elastic arm and is used to abut against the groove wall of the backstop groove after the contact portion extends into the connecting segment.

[0018] The present invention also proposes a fuel cell that uses the aforementioned fuel cell inspection device.

[0019] The technical solution of this invention improves the sealing performance of the main body by providing only one opening, the installation channel, while the rest is sealed. Contact terminals are then inserted into the installation channel, and the transmission line is connected to the mounting hole formed on the contact terminal. A sealing structure is fitted around the transmission line, with the outer diameter of the sealing structure larger than the inner diameter of the sealing section, creating an interference fit between the sealing structure and the sealing section. This seals the installation channel, preventing moisture from entering and causing corrosion and oxidation to the contact terminals, transmission line, and main body, thus extending the service life of the voltage monitoring device. This invention achieves moisture blocking through the combination of the sealing structure and the installation channel, preventing moisture from entering the installation channel and causing corrosion and oxidation to the contact terminals, transmission line, and main body, thereby extending the service life of the voltage monitoring device. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a fuel cell inspection device provided in an embodiment of the present invention;

[0022] Figure 2 This is an exploded structural diagram of the main body and connector of the fuel cell inspection device provided in an embodiment of the present invention.

[0023] Figure 3 A schematic cross-sectional view of the connector, sealing structure, and main body of a fuel cell inspection device according to an embodiment of the present invention;

[0024] Figure 4 This is an assembly diagram of the connector and sealing structure of a fuel cell inspection device according to an embodiment of the present invention.

[0025] Figure 5 This is a schematic diagram of the connector of a fuel cell inspection device according to an embodiment of the present invention;

[0026] Figure 6 An exploded view of the connector of a fuel cell inspection device according to an embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of the sealing structure of a fuel cell inspection device provided in an embodiment of the present invention.

[0028] Explanation of icon numbers:

[0029] 100. Inspection device for fuel cells; 1. Main body; 11. Installation channel; 111. Sealing section; 112. Connecting section; 1121. Anti-reverse groove; 12. Groove; 2. Connector; 21. Contact terminal; 211. Connecting part; 2111. Conducting section; 21111. Second body; 21112. Second clamping arm; 2112. Fixing section; 21121. First body; 21122. First clamping arm 2113 Arm; 2114 Mounting hole; 2115 Connecting bridge; 2126 Contact part; 2121 Snap-fit; 2122 Elastic arm; 2123 Snap-fit ​​connector; 213 Contact block; 214 Probe; 215 Clearance groove; 226 Transmission line; 221 Outer sheath; 222 Wire core; 3. Sealing structure; 31. Sealing ring; 311. Sealing ring; 32. Clamping section; 4. Gap; 5. Pressure block; 6. Electrode.

[0030] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0032] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0033] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0034] In existing technologies, during the use of customer fuel cell stacks, the air in the stack core contains some moisture, and some moisture will seep out of the stack core during operation, resulting in high humidity in the stack core. Currently used voltage inspection devices are basically not waterproof. Voltage inspection devices are in a high humidity and high temperature environment for a long time, which will accelerate the oxidation of the metal in the voltage inspection device, reduce the insulation strength of the plastic, and shorten the service life of the voltage inspection device.

[0035] To address the aforementioned problems, this invention proposes a fuel cell inspection device 100.

[0036] Please combine Figures 1 to 3 and Figure 6The fuel cell inspection device 100 of this embodiment includes a main body 1, a connector 2, and a sealing structure 3. The main body 1 has multiple through mounting channels 11 spaced apart. Each mounting channel 11 includes a sealing section 111 and a connecting section 112. The connector 2 includes a contact terminal 21 and a transmission line 22. The contact terminal 21 includes a connecting portion 211 and a contact portion 212. The contact terminal 21 is inserted into one end of the mounting channel 11 and extends out from the other end, so that the contact portion 212 abuts against the electrode plate 6 of the fuel cell. The contact terminal 21 is inserted into the mounting channel 11. At this time, the connecting part 211 is correspondingly disposed in the sealing section 111, and the contact part 212 is correspondingly disposed in the connecting section 112; the connecting part 211 forms a through mounting hole 2113, the transmission line 22 extends into the mounting hole 2113 and is electrically connected to the contact terminal 21; the sealing structure 3 is sleeved on the outer periphery of the transmission line 22, and at least a portion of the sealing structure 3 is sandwiched between the connecting part 211 and the transmission line 22. The sealing structure 3 is made of elastic material, and the outer diameter of the sealing structure 3 is larger than the inner diameter of the sealing section 111, so that the sealing structure 3 abuts against the inner wall of the sealing section 111.

[0037] Understandably, in order to achieve waterproofing, the main body 1 must have as few holes as possible, and any holes must be sealed with silicone waterproof rings. Therefore, only one type of opening, the installation channel 11, was made to improve the sealing of the main body.

[0038] The technical solution of this invention improves the sealing performance of the main body 1 by providing only one opening, the mounting channel 11, on the main body 1, while sealing the rest. Then, the contact terminal 21 is inserted into the mounting channel 11, and the transmission line 22 is inserted into the mounting hole 2113 formed on the contact terminal 21. A sealing structure 3 is fitted around the transmission line 22. By making the outer diameter of the sealing structure 3 larger than the inner diameter of the sealing section 111, the sealing structure 3 and the sealing section 111 are press-fitted, sealing the mounting channel 11. This prevents moisture from entering the mounting channel 11 and causing corrosion and oxidation to the contact terminal 21, the transmission line 22, and the main body 1, thus extending the service life of the voltage inspection device. This invention achieves moisture blocking through the cooperation of the sealing structure 3 and the mounting channel 11, preventing moisture from entering the mounting channel 11 and causing corrosion and oxidation to the contact terminal 21, the transmission line 22, and the main body 1, thereby extending the service life of the voltage inspection device.

[0039] Please combine Figures 4 to 6 In one embodiment, the connecting portion 211 includes a conductive section 2111 and a fixing section 2112. One end of the conductive section 2111 is connected to the contact portion 212, and the conductive section 2111 forms a mounting hole 2113. The fixing section 2112 is connected to the end of the conductive section 2111 away from the contact portion 212. The fixing section 2112 is arranged in a ring and surrounds the outer periphery of the transmission line 22.

[0040] By providing two parts, a conductive section 2111 and a fixing section 2112, in the connecting part 211, the conductive section 2111 is used to achieve electrical connection with the transmission line 22, and the fixing section 2112 is used to structurally limit and support the transmission line 22 in a circumferential manner, thereby improving the connection stability between the contact terminal 21 and the transmission line 22 and avoiding contact loosening caused by vibration or long-term use. At the same time, the fixing section 2112 is arranged in a ring around the outer periphery of the transmission line 22, which can form a uniform covering support at the outer sheath 221 of the transmission line 22, improving the tensile strength and displacement resistance of the overall structure, and further enhancing the sealing reliability of the sealing structure 3.

[0041] In one embodiment, the transmission line 22 includes an outer sheath 221 and a core 222. A fixing section 2112 surrounds the outer periphery of the outer sheath 221, and the core 222 extends into the mounting hole 2113 and is electrically connected to the conducting section 2111.

[0042] By mates the outer sheath 221 of the transmission line 22 with the fixing section 2112, the fixing section 2112 can stably clamp the outer sheath 221 of the transmission line 22, thereby preventing the outer sheath 221 from slipping or falling off and improving the mechanical strength of the electrical connection. Simultaneously, the wire core 222 extends directly into the mounting hole 2113 and is electrically connected to the conducting section 2111, reducing intermediate connection links, lowering contact resistance, and ensuring the reliability and stability of electrical signal transmission. Furthermore, this structure facilitates the effective sealing of the sealing structure 3 around the transmission line 22, further preventing moisture from entering the mounting channel 11 and improving the durability and service life of the entire fuel cell inspection device.

[0043] Please combine Figure 3 and Figure 7 In one embodiment, the sealing structure 3 includes a sealing ring 31 and a clamping section 32. The fixing section 2112 and the outer skin 221 are spaced apart to form a gap 4. The clamping section 32 extends into the gap 4 and abuts against the fixing section 2112 and the outer skin 221 respectively. The sealing ring 31 is connected to the side of the clamping section 32 away from the fixing section 2112.

[0044] By designing the sealing structure 3 to include a sealing ring 31 and a clamping section 32, the sealing structure 3 can simultaneously achieve the dual functions of sealing and stabilization. The gap 4 formed between the fixed section 2112 and the outer skin 221 accommodates the clamping section 32, which abuts against both the fixed section 2112 and the outer skin 221, generating a continuous elastic clamping force in the radial direction. This effectively prevents the sealing structure 3 from loosening during vibration or tension. Simultaneously, the sealing ring 31 is located on the side of the clamping section 32 away from the fixed section 2112, forming a second sealing barrier between the transmission line 22 and the inner wall of the sealing section 111, further blocking moisture penetration into the installation channel 11. Through this structural design, the sealing structure 3 can significantly improve the sealing effect while ensuring the stability of the transmission line 22, effectively preventing corrosion and insulation degradation of the contact terminals 21 caused by moisture intrusion, and extending the overall service life of the fuel cell inspection device.

[0045] Furthermore, the sealing ring 31 includes two overlapping sealing rings 311 along the extension direction of the transmission line 22. The outer diameter of each sealing ring 311 gradually decreases from the middle to both ends along the extension direction of the transmission line 22, and the inner diameter of each sealing ring 311 gradually increases from the middle to both ends along the extension direction of the transmission line 22, so that the inner surface of the sealing ring 311 protrudes inward and abuts against the outer skin 221, and the outer surface of each sealing ring 311 protrudes outward and abuts against the sealing section 111.

[0046] The sealing ring 31 includes two stacked sealing rings 311, thereby achieving double sealing in the extension direction of the sealing section 111, which improves the sealing performance of the sealing ring 31 for the sealing section 111; at the same time, the inner ring of each sealing ring 311 protrudes inward and the outer ring protrudes outward, so that the inner ring of the sealing ring 311 is press-fitted with the outer sheath 221 of the transmission line 22, and the outer ring is press-fitted with the inner wall of the sealing section 111, thereby further improving the sealing effect.

[0047] Specifically, the outer diameter of the sealing ring 31 is A, the distance between each inner wall of the sealing section 111 and the center of the sealing ring 31 is B, AB > 0.2 mm; and / or,

[0048] The inner diameter of the sealing ring 31 is C, and the outer diameter of the transmission line 22 is D, where DC > 0.2 mm.

[0049] By limiting the fit dimension relationship between the outer diameter of the sealing ring 31 and the inner wall of the sealing section 111 (AB>0.2mm), the sealing ring 31 is fitted into the sealing section 111 with an appropriate interference, thereby ensuring that the sealing ring 31 and the inner wall of the sealing section 111 are tightly abutted, achieving a reliable radial sealing effect and preventing moisture from seeping in along the transmission line 22 channel.

[0050] Furthermore, by limiting the relationship between the outer diameter of the sealing ring 31 and the outer diameter of the transmission line 22 (DC>0.2mm), the sealing ring 31 and the outer sheath 221 of the transmission line 22 are made to have an interference fit for moisture, thereby ensuring that the sealing ring 31 and the outer wall of the outer sheath 221 are in tight contact, achieving a reliable radial sealing effect and preventing moisture from seeping in along the transmission line 22 channel.

[0051] Please combine Figures 3 to 6 In one embodiment, the fixed section 2112 and the conductive section 2111 are spaced apart along the extension direction of the transmission line 22, and the fixed section 2112 and the conductive section 2111 are connected by a connecting bridge 2114. The clamping section 32 extends toward the conductive section 2111 until it is flush with the end of the outer skin 221.

[0052] By spacing the fixed section 2112 and the conductive section 2111 along the direction of the transmission line 22, and providing a connecting bridge 2114 between them, the conductive section 2111 and the fixed section 2112 maintain both electrical independence and mechanical connection in structure, thereby effectively improving the overall structural strength and assembly stability of the contact terminal 21. The connecting bridge 2114 provides transition support and elastic buffering between the conductive section 2111 and the fixed section 2112, avoiding stress concentration or deformation caused by thermal expansion and contraction, and improving the reliability of long-term use.

[0053] Meanwhile, the clamping section 32 extends towards the conduction section 2111 until it is flush with the end of the outer sheath 221, so that the sealing structure 3 forms a complete encapsulation seal at the end of the transmission line 22, preventing water leakage or oxidation problems caused by the exposed end of the transmission line 22. This design can further optimize the sealing performance while maintaining good conductivity, thereby improving the moisture resistance, corrosion resistance and service life of the fuel cell inspection device.

[0054] In one embodiment, the fixing segment 2112 includes a first body 21121 and two first clamping arms 21122. The two first clamping arms 21122 are spaced apart on the first body 21121 along the extension direction of the transmission line 22, and the two first clamping arms 21122 are respectively disposed on opposite sides of the first body 21121. Each first clamping arm 21122 is bent toward the other first clamping arm 21122 so that the first body 21121 and the two first clamping arms 21122 form a ring structure, and each first clamping arm 21122 abuts against the clamping segment 32.

[0055] By designing the fixed section 2112 as a ring structure composed of the first body 21121 and two first clamping arms 21122, the fixed section 2112 can form a uniform circumferential covering force around the transmission line 22, thereby improving the stability and tensile strength between the fixed section 2112 and the transmission line 22. Furthermore, the two first clamping arms 21122 can be opened outwards to replace the transmission line 22, improving the portability of disassembly and repair. The two first clamping arms 21122 are spaced apart along the extension direction of the transmission line 22 and bent inwards to form a ring structure, effectively clamping the transmission line 22 in the radial direction to prevent displacement under vibration or external force. Simultaneously, the first clamping arms 21122 and the clamping section 32 abut against each other, forming a continuous contact interface between the sealing structure 3 and the fixed section 2112, further improving local sealing performance and mechanical stability, thereby enhancing the moisture resistance and oxidation resistance of the entire fuel cell inspection device.

[0056] In one embodiment, the conducting section 2111 includes a second body 21111 and two second clamping arms 21112. The two second clamping arms 21112 are respectively disposed on opposite sides of the second body 21111. Each second clamping arm 21112 is bent toward the other second clamping arm 21112 and abuts against the middle of the second body 21111 to form two tangent arc-shaped structures. The end of each second clamping arm 21112 away from the second body 21111 is pressed against the wire core 222.

[0057] By designing the conducting section 2111 as a double-arc structure consisting of a second body 21111 and two second clamping arms 21112, the wire core 222 is clamped by the two second clamping arms 21112, which improves the stability of the wire core. At the same time, the second body 21111 forms a surface contact with the wire core 222 when it contacts the wire core, which increases the electrical connection area and reduces the contact resistance, thereby improving the stability and conductivity of electrical signal transmission.

[0058] In one embodiment, a retaining groove 1121 is provided on one inner wall of the connecting section 112, and a buckle 2121 is provided on the side of the contact portion 212 facing the retaining groove 1121. The buckle 2121 includes an elastic arm 2122 and a snap-fit ​​connector 2123. One end of the elastic arm 2122 is connected to the contact portion 212, and the elastic arm 2122 is inclined from the contact portion 212 toward the connecting portion 211 in a direction away from the contact portion 212. The snap-fit ​​connector 2123 is provided at the other end of the elastic arm 2122 and is used to abut against the groove wall of the retaining groove 1121 after the contact portion 212 extends into the connecting section 112.

[0059] By providing a backlash groove 1121 on the inner wall of the connecting section 112 and a snap-fit ​​structure 2121 on the contact portion 212, the contact terminal 21 can achieve self-locking after being assembled into the connecting section 112, preventing axial displacement or loosening of the contact terminal 21 due to vibration or external force. The elastic arm 2122 undergoes elastic deformation during assembly. When the contact portion 212 is fully inserted into the connecting section 112, the elastic arm 2122 returns to its original shape, causing the snap-fit ​​connector 2123 to automatically spring into the backlash groove 1121 and abut against the groove wall, thus achieving a secure lock. This structure achieves reliable anti-retraction function without adding additional fasteners, simplifying the assembly process and improving the overall stability and reliability of the structure. Simultaneously, the elastic arm 2122 has good reset performance, allowing for easy disassembly during maintenance or replacement, improving the maintainability and service life of the fuel cell inspection device.

[0060] Furthermore, the contact portion 212 includes a contact block 213 and a probe 214. One end of the contact block 213 is connected to the connecting portion 211, and the other end is connected to the probe 214. The probe 214 extends out of the main body 1 through the mounting channel 11 and is electrically connected to the battery electrode 6. An elastic arm 2122 is provided on the side of the contact block 213 near the probe 214. The side of the contact block 213 corresponding to the elastic arm 2122 is recessed in the direction away from the elastic arm 2122 to form a relief groove 215.

[0061] By designing the contact portion 212 as a two-segment structure consisting of a contact block 213 and a probe 214, the probe 214 can extend independently out of the main body 1 to form a reliable electrical contact with the battery electrode 6, while the contact block 213 plays a supporting and conductive role, thereby improving the structural strength and conductivity of the contact terminal 21.

[0062] Furthermore, the elastic arm 2122 provided on the contact block 213 can provide elastic buffering for the probe 214 during assembly or operation, so that the probe 214 maintains stable contact pressure when subjected to external force or vibration, preventing electrical signal fluctuations caused by poor contact. In addition, a clearance groove 215 is formed on one side of the contact block 213 corresponding to the elastic arm 2122, so that the elastic arm 2122 has sufficient room for movement when deformed, avoiding elastic attenuation caused by structural interference, thereby ensuring the working sensitivity and long-term reliability of the elastic arm 2122.

[0063] In one embodiment, the fuel cell inspection device 100 further includes a pressure block 5. A groove 12 is provided on one side of the main body 1, and an installation channel 11 is provided on the other side. The pressure block 5 is inserted into the groove 12 to press the main body 1 against the fuel cell electrode 6. By providing the groove 12 on the main body 1 and using the pressure block 5 in conjunction, the pressure block 5 can be inserted into the groove 12 to apply a clamping force to the main body 1, thereby achieving a stable fit between the main body 1 and the fuel cell electrode 6. Simultaneously, the pressure block 5 ensures a constant pressure between the contact portion 212 and the fuel cell electrode 6, maintaining contact stability and avoiding voltage detection errors caused by poor contact.

[0064] The present invention also proposes a fuel cell, wherein the fuel cell uses the aforementioned fuel cell inspection device 100. The specific structure of the fuel cell inspection device 100 is as described in the above embodiments. Since this fuel cell adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated here.

[0065] The above are merely optional embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made under the concept of the present invention using the contents of the specification and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An inspection device for a fuel cell, characterized in that, include: The main body has multiple through-type installation channels spaced apart on it, and each installation channel includes a sealing section and a connecting section; A connector, comprising a contact terminal and a transmission line, wherein the contact terminal comprises a connecting portion and a contact portion, the contact terminal being inserted from one end of the mounting channel and extending from the other end, such that the contact portion abuts against the electrode of the fuel cell; when the contact terminal is inserted into the mounting channel, the connecting portion is correspondingly disposed within the sealing section, and the contact portion is correspondingly disposed within the connecting section; The connecting portion forms a through mounting hole, and the transmission line extends into the mounting hole and is electrically connected to the contact terminal; A sealing structure is sleeved on the outer periphery of the transmission line, and at least a portion of the sealing structure is sandwiched between the connecting portion and the transmission line. The sealing structure is made of an elastic material, and the outer diameter of the sealing structure is larger than the inner diameter of the sealing section, so that the sealing structure abuts against the inner wall of the sealing section. The connecting part includes a conductive section and a fixed section. One end of the conductive section is connected to the contact part, and the conductive section forms the mounting hole. The fixed section is connected to the end of the conductive section away from the contact part. The fixed section is arranged in a ring and surrounds the outer periphery of the transmission line. The transmission line includes an outer sheath and a core wire. The fixed section surrounds the outer periphery of the outer sheath, and the core wire extends into the mounting hole and is electrically connected to the conductive section. The sealing structure includes a sealing ring and a clamping section. The fixing section is spaced apart from the outer skin to form a gap. The clamping section extends into the gap and abuts against the fixing section and the outer skin respectively. The sealing ring is connected to the side of the clamping section away from the fixing section and abuts against the inner wall of the sealing section.

2. The fuel cell inspection device as described in claim 1, characterized in that, The sealing ring includes two sealing rings stacked along the extension direction of the transmission line. The outer diameter of each sealing ring gradually decreases from the middle to both ends along the extension direction of the transmission line, and the inner diameter of each sealing ring gradually increases from the middle to both ends along the extension direction of the transmission line, so that the inner surface of each sealing ring protrudes inward and abuts against the outer skin, and the outer surface of each sealing ring protrudes outward and abuts against the sealing section.

3. The fuel cell inspection device as described in claim 1, characterized in that, The fixed section and the conductive section are spaced apart along the extension direction of the transmission line, and the fixed section and the conductive section are connected by a connecting bridge. The clamping section extends toward the conductive section to be flush with the end of the outer skin.

4. The fuel cell inspection device as described in claim 1, characterized in that, The fixing section includes a first body and two first clamping arms. The two first clamping arms are spaced apart on the first body along the extension direction of the transmission line, and the two first clamping arms are respectively located on opposite sides of the first body. Each first clamping arm is bent toward the other first clamping arm so that the first body and the two first clamping arms form a ring structure, and each first clamping arm abuts against the clamping section.

5. The fuel cell inspection device as described in claim 1, characterized in that, The conductive section includes a second body and two second clamping arms. The two second clamping arms are respectively disposed on opposite sides of the second body. Each second clamping arm bends toward the other second clamping arm and abuts against the second body near the middle to form two tangent arc-shaped structures. The end of each second clamping arm away from the second body abuts against the wire core.

6. The fuel cell inspection device according to any one of claims 1 to 5, characterized in that, An anti-reverse groove is provided on one side of the inner wall of the connecting section. A buckle is provided on the side of the contact portion facing the anti-reverse groove. The buckle includes an elastic arm and a snap-fit ​​connector. One end of the elastic arm is connected to the contact portion. The elastic arm is inclined from the contact portion toward the connecting portion in a direction away from the contact portion. The snap-fit ​​connector is provided at the other end of the elastic arm and is used to abut against the groove wall of the anti-reverse groove after the contact portion extends into the connecting section.

7. A fuel cell, characterized in that, The fuel cell application includes a fuel cell inspection device as described in any one of claims 1 to 6.

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