Fixing device and hydrogen production system

Abstract

The application discloses a fixing device and a hydrogen production system. The fixing device comprises a support frame and a limiting mechanism. The support frame is provided with a containing groove and an opening communicating with the containing groove, and a stack is detachably arranged in the containing groove; the limiting mechanism is arranged on the support frame, and the limiting mechanism comprises a first limiting component and a second limiting component. At least part of the first limiting component is arranged around the two opposite sides of the stack along the length direction of the support frame, and the second limiting component is arranged on the outer periphery of the opening and abuts against the stack. The application can solve the problem that the fixing mode of the stack in the prior art has weak anti-vibration performance and easily causes the loose structure or damage of the stack.

Description

Technical Field

[0001] This application relates to the field of hydrogen production technology, and more specifically, to a stationary device and a hydrogen production system. Background Technology

[0002] Fuel cell stacks, as important energy conversion or storage devices, are widely used in various industrial and electronic equipment. A fuel cell stack typically consists of multiple unit modules, fixed to a frame or support structure in a specific arrangement to ensure stable operation. In practical applications, fuel cell stacks require a robust fixing structure to prevent displacement or loosening during transportation, vibration, or external impacts, which could affect equipment performance and lifespan. Furthermore, in vibration or impact environments, existing fixing methods often have weak vibration resistance, easily leading to loosening or damage to the fuel cell stack structure. Utility Model Content

[0003] The main objective of this application is to provide a fixing device and a hydrogen production system to solve the problem that the fixing method of fuel cell stacks in the prior art has weak vibration resistance, which easily leads to loosening or damage of the fuel cell stack structure.

[0004] According to one aspect of this application, a fixing device is provided, the fixing device being used for fixing at least a fuel cell stack, the fixing device comprising:

[0005] A support frame is provided with a receiving groove and an opening communicating with the receiving groove, and the fuel cell stack is detachably disposed in the receiving groove;

[0006] A limiting mechanism is provided on the support frame. The limiting mechanism includes a first limiting component and a second limiting component. At least a portion of the first limiting component surrounds two opposing sides of the fuel cell stack along the length direction of the support frame. The second limiting component is provided on the outer periphery of the opening and abuts against the fuel cell stack.

[0007] Furthermore, the first limiting component includes:

[0008] The support portion is disposed on the support frame;

[0009] The stop portion is disposed on the outer edge of the bearing portion and extends along the height direction of the support frame. The stop portion is provided with a first clearance notch for the wiring terminal to pass through, and the stop portion and the bearing portion surround to form the receiving groove. At least a portion of the stop portion surrounds the two opposite sides of the fuel cell stack along the length direction of the support frame.

[0010] Furthermore, a second clearance notch is provided near the opening of the bearing portion, and the second clearance notch is provided through the thickness direction of the bearing portion.

[0011] Furthermore, a limiting member is provided on the bearing portion, the limiting member including a connecting section and a plug-in section, the connecting section is connected to the bearing portion and extends along the height direction of the support frame, the plug-in section is located on the side of the connecting section away from the bearing portion and extends along the width direction of the support frame, a limiting groove is provided on the side wall of the fuel cell stack, and the plug-in section is inserted into the limiting groove.

[0012] Furthermore, the second limiting component includes a first limiting piece and a second limiting piece. The first limiting piece is disposed on the support frame, and the second limiting piece is rotatably disposed on the first limiting piece. The second limiting piece has a locking position that abuts against the fuel cell stack to lock the fuel cell stack in the receiving slot, and a release position that rotates by a predetermined angle to separate from the fuel cell stack.

[0013] When the second limiting piece is in the locked position, the second limiting piece is in contact with the surface of the fuel cell stack.

[0014] Furthermore, the first limiting piece has a first through hole, and the second limiting piece has a second through hole;

[0015] The second limiting component also includes a stop screw and a lock nut. The stop screw is disposed at the first through hole and extends in a direction away from the support frame. The second limiting piece is sleeved on the stop screw through the second through hole. The lock nut is rotatably sleeved on the stop screw and is located on the side of the second limiting piece away from the first limiting piece.

[0016] Furthermore, the second limiting component also includes an elastic element, which is sleeved on the plug screw and located between the first limiting piece and the second limiting piece.

[0017] Furthermore, the second limiting component includes two components, which are disposed on the support frame and located at opposite ends of the opening along the length direction of the support frame, and the two second limiting components respectively abut against the fuel cell stack.

[0018] Furthermore, the receiving slot includes multiple rows, the multiple rows of receiving slots are spaced apart along the height direction of the support frame, and each row of receiving slots includes multiple receiving slots spaced apart along the length direction of the support frame.

[0019] The fuel cell stacks include multiple stacks, and each stack is disposed in a corresponding manner within a plurality of receiving slots.

[0020] On the other hand, this application also provides a hydrogen production system, which includes the aforementioned stationary device.

[0021] In this application, a first limiting component restricts the displacement of the fuel cell stack along the length of the support frame, while a second limiting component prevents the stack from detaching from the opening. The combination of the first and second limiting components forms a multi-dimensional limiting system, making the fuel cell stack more stable within the fixing device and improving its reliability. Regardless of the direction of external force applied to the fuel cell stack, it can be constrained to a certain extent, effectively improving the vibration resistance of the fuel cell stack fixing method. Simultaneously, the dual limiting structure ensures that the fuel cell stack remains in a fixed position, preventing interference or collisions with surrounding components due to displacement. This protects the fuel cell stack itself and surrounding components, reduces the risk of malfunctions or damage caused by collisions with other components, and contributes to the stable operation of the entire system. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0023] Figure 1 This is a schematic diagram of the fixing device disclosed in the embodiments of this application;

[0024] Figure 2 The appendices disclosed in the embodiments of this application Figure 1 Enlarged view of region A in the middle;

[0025] Figure 3 The appendices disclosed in the embodiments of this application Figure 1 Enlarged view of region B in the middle;

[0026] Figure 4 This is a schematic diagram of the structure of the second limiting component disclosed in the embodiments of this application;

[0027] Figure 5 This is a side view of the second limiting component disclosed in an embodiment of this application;

[0028] Figure 6 This is a schematic diagram of the structure of the first limiting component disclosed in the embodiments of this application.

[0029] The above figures include the following reference numerals:

[0030] 10. Support frame; 11. Receiving groove; 12. Opening; 20. Limiting mechanism; 21. First limiting component; 211. Bearing part; 212. Stop part; 213. First clearance notch; 214. Second clearance notch; 22. Second limiting component; 221. First limiting piece; 222. Second limiting piece; 223. Plug screw; 224. Anti-loosening nut; 225. Elastic element; 23. Limiting element; 231. Connecting section; 232. Plug-in section; 30. Fusible pile; 40. Terminal block. Detailed Implementation

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0033] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0034] As mentioned in the background section, existing fuel cell stacks require a robust fixing structure to prevent displacement or loosening during transportation, vibration, or external impact. However, under vibration or impact conditions, the existing fuel cell stack fixing methods have weak vibration resistance, easily leading to loosening or damage to the stack structure. Therefore, the inventors of this application have designed a novel fixing device that solves the problem of weak vibration resistance in existing fuel cell stack fixing methods, which easily leads to loosening or damage to the stack structure. The fixing device of this application will be described in detail below with reference to the accompanying drawings.

[0035] It should be noted that "the length direction of the support frame 10" in this application refers to the attached... Figure 1 The direction indicated by the letter X; "the width direction of support frame 10" refers to the attached... Figure 1 The direction indicated by the letter Y; "the height direction of support frame 10" refers to the attached... Figure 1 The direction indicated by the letter Z.

[0036] See Figures 1 to 6 As shown, according to an embodiment of this application, a fixing device is provided for fixing at least a fuel cell stack 30. The fixing device includes a support frame 10 and a limiting mechanism 20.

[0037] The support frame 10 is provided with a receiving groove 11 and an opening 12 communicating with the receiving groove 11. The fuel cell stack 30 is detachably disposed in the receiving groove 11. The limiting mechanism 20 is disposed on the support frame 10. The limiting mechanism 20 includes a first limiting component 21 and a second limiting component 22. At least part of the first limiting component 21 surrounds the fuel cell stack 30 on opposite sides along the length direction of the support frame 10. The second limiting component 22 is disposed on the outer periphery of the opening 12 and abuts against the fuel cell stack 30.

[0038] In this embodiment, when using the fixing device, the fuel cell stack 30 can be placed in the receiving groove 11 of the support frame 10, and the limiting mechanism 20 can be used to limit and fix the fuel cell stack 30 located in the receiving groove 11. Since the first limiting component 21 in this embodiment is arranged around the fuel cell stack 30 on both sides opposite to each other along the length direction of the support frame 10, the displacement of the fuel cell stack 30 in the length direction of the support frame 10 can be effectively limited. When vibration or impact occurs, this double-sided limiting structure can prevent the fuel cell stack 30 from colliding or rubbing with surrounding components, thereby protecting the fuel cell stack 30 from damage. At the same time, since the second limiting component 22 in this embodiment is arranged on the outer periphery of the opening 12 and abuts against the fuel cell stack 30, it can provide an additional limiting effect on the side of the fuel cell stack 30 located at the opening 12. When the fuel cell stack 30 is subjected to vibration from the side, the second limiting component 22 can promptly stop the fuel cell stack 30 and prevent the fuel cell stack 30 from falling out of the opening 12.

[0039] In other words, in this embodiment, the first limiting component 21 restricts the displacement of the fuel cell stack 30 along the length of the support frame 10, while the second limiting component 22 prevents the fuel cell stack 30 from detaching from the opening 12. The combination of the first limiting component 21 and the second limiting component 22 forms a multi-dimensional limiting system, making the fuel cell stack 30 more stable in the fixing device and improving the reliability of the fixing device. No matter which direction the fuel cell stack 30 is subjected to external force, it can be constrained to a certain extent, effectively improving the vibration resistance of the fixing method of the fuel cell stack 30. At the same time, the double limiting structure can ensure that the fuel cell stack 30 is always in a fixed position, avoiding interference or collision between the fuel cell stack 30 and surrounding components due to displacement, thereby protecting the safety of the fuel cell stack 30 itself and surrounding components, reducing the risk of failure or damage caused by collision with components, and contributing to the stable operation of the entire system.

[0040] Further, see Figure 1 , Figure 3 as well as Figure 6As shown, the first limiting component 21 in this embodiment includes a supporting portion 211 and a stop portion 212. The supporting portion 211 is disposed on the support frame 10; the stop portion 212 is disposed on the outer edge of the supporting portion 211 and extends along the height direction of the support frame 10. The stop portion 212 has a first clearance notch 213 for the terminal 40 to pass through, and the stop portion 212 and the supporting portion 211 form a receiving groove 11. At least a portion of the stop portion 212 surrounds two opposing sides of the fuel cell stack 30 along the length direction of the support frame 10. Exemplarily, in this embodiment, the supporting portion 211 includes a supporting plate; the stop portion 212 includes a stop edge.

[0041] Specifically, the bearing portion 211 is disposed on the support frame 10, providing a stable placement platform for the fuel cell stack 30. It not only bears the weight of the fuel cell stack 30, evenly transferring its gravity to the support frame 10 to prevent deformation or damage due to its own weight, but also ensures the accurate initial installation position of the fuel cell stack 30 on the support frame 10, providing a foundation for subsequent positioning and fixation. The stop portion 212 precisely positions the fuel cell stack 30, restricting its movement only within the space defined by the receiving slot 11. Since at least a portion of the stop portion 212 surrounds the fuel cell stack 30 on opposite sides along the length of the support frame 10, it directly restricts the fuel cell stack 30 in the length direction, preventing displacement in that direction. This ensures that the fuel cell stack 30 remains in a fixed position when subjected to external forces, especially in the length direction, improving the stability and reliability of the fuel cell stack 30 installation. At the same time, the first clearance notch 213 provides installation space for the terminal block 40, avoiding interference between the terminal block 40 of the fuel cell stack 30 and the stop part 212, which facilitates subsequent circuit connection and wiring work.

[0042] Furthermore, the receiving groove 11 structure formed by the supporting part 211 and the stop part 212 provides convenience for the installation and disassembly of the fuel cell stack 30. When installing the fuel cell stack 30, it is only necessary to place the fuel cell stack 30 into the receiving groove 11 and make the fuel cell stack 30 fit against the stop part 212 and the supporting part 211 to complete the initial positioning. When disassembling, it is only necessary to take the fuel cell stack 30 out of the receiving groove 11. The operation is simple and convenient, which helps to improve the assembly and maintenance efficiency of the equipment and reduce maintenance costs and time.

[0043] Further, see Figure 6 As shown, in this embodiment, the supporting portion 211 is provided with a second clearance notch 214 near the opening 12, and the second clearance notch 214 is provided through the thickness direction of the supporting portion 211. It should be noted that the "thickness direction of the supporting portion 211" in this application refers to the attached... Figure 6 The direction indicated by the letter F in the middle.

[0044] Specifically, the second clearance notch 214 provides a convenient passage for the fuel cell stack 30 to enter and exit the receiving slot 11. When installing the fuel cell stack 30, a portion of the stack can be aligned with the second clearance notch 214 first, making it easier to place the stack 30 into the receiving slot 11. During disassembly, one end of the stack 30 can be lifted first through the second clearance notch 214, allowing for easy removal of the stack 30, reducing the difficulty of installation and disassembly and improving operational efficiency. At the same time, the second clearance notch 214 not only reduces the overall weight of the supporting part 211, thereby reducing the overall weight of the fixing device, but also saves materials and reduces manufacturing costs.

[0045] Further, see Figure 3 as well as Figure 6 As shown, in this embodiment, a limiting member 23 is provided on the support part 211. The limiting member 23 includes a connecting section 231 and a plug-in section 232. The connecting section 231 is connected to the support part 211 and extends along the height direction of the support frame 10. The plug-in section 232 is located on the side of the connecting section 231 away from the support part 211 and extends along the width direction of the support frame 10. A limiting groove (not shown in the figure) is provided on the side wall of the fuel cell stack 30, and the plug-in section 232 is inserted into the limiting groove.

[0046] Specifically, by inserting the plug-in section 232 of the limiting member 23 into the limiting groove on the side wall of the fuel cell stack 30, the position of the fuel cell stack 30 on the support frame 10 can be accurately limited, ensuring that the fuel cell stack 30 will not move or shake after installation, thus achieving precise positioning of the fuel cell stack 30 and improving the overall stability and reliability of the equipment. The connecting section 231 of the limiting member 23 extends along the height direction of the support frame 10, and the plug-in section 232 extends along the width direction of the support frame 10. This design allows the limiting member 23 to constrain the fuel cell stack 30 from multiple directions, not only limiting the displacement of the fuel cell stack 30 in the height and width directions, but also effectively preventing the fuel cell stack 30 from rotating in the plane, further enhancing the fixing effect of the fuel cell stack 30, making the fuel cell stack 30 less prone to positional changes when subjected to external impact.

[0047] Meanwhile, in this embodiment, the limiting member 23 and the stop portion 212 with the first clearance notch 213 are spaced apart, so as to prevent the terminal 40 from being damaged due to excessive pressure on the terminal 40 during the installation process.

[0048] Further, see Figures 3 to 5As shown, the second limiting component 22 in this embodiment includes a first limiting piece 221 and a second limiting piece 222. The first limiting piece 221 is disposed on the support frame 10, and the second limiting piece 222 is rotatably disposed on the first limiting piece 221. The second limiting piece 222 has a locking position that abuts against the fuel cell stack 30 to lock the fuel cell stack 30 in the receiving groove 11, and a release position that rotates by a predetermined angle to separate from the fuel cell stack 30. When the second limiting piece 222 is in the locking position, the second limiting piece 222 is in surface contact with the fuel cell stack 30. It is worth noting that the predetermined angle in this embodiment can be set according to actual usage requirements, and this application does not impose specific limitations.

[0049] Specifically, when the second limiting piece 222 is in the locked position, it abuts against the fuel cell stack 30, firmly locking the fuel cell stack 30 within the receiving groove 11. Even if the fuel cell stack 30 is subjected to upward or other directional external forces, it is difficult for it to come out from the opening 12, providing additional safety for the fuel cell stack 30 and enhancing the reliability of the entire limiting mechanism 20. Since the second limiting piece 222 in this embodiment is rotatably disposed on the first limiting piece 221, when it is necessary to place the fuel cell stack 30 into or remove it from the receiving groove 11, simply rotate the second limiting piece 222 to the release position to separate the second limiting piece 222 from the fuel cell stack 30, thus facilitating the installation or removal of the fuel cell stack 30. This rotatable design makes the operation process more convenient and improves work efficiency. Since the second limiting piece 222 in this embodiment is in surface-to-surface contact with the fuel cell stack 30, the force exerted by the second limiting piece 222 on the fuel cell stack 30 can be evenly distributed on the contact surface, avoiding excessive local pressure that may be caused by point contact or line contact. At the same time, the larger contact area provides a more stable locking effect. Compared with other non-surface-to-surface contact methods, surface-to-surface contact can better limit the slight movement and shaking of the fuel cell stack 30 in the receiving groove 11. Even if vibration occurs or external force interference occurs during equipment operation, the fuel cell stack 30 can remain in its original position more stably, improving the stability and reliability of the entire system.

[0050] Meanwhile, in this embodiment, the locking and releasing positions are switched by rotating a predetermined angle, allowing the second limiting piece 222 to adapt to fuel cell stacks 30 of different sizes and shapes. As long as the fuel cell stack 30 can be placed in the receiving slot 11, the position of the second limiting piece 222 can be adjusted to effectively limit the fuel cell stack 30, demonstrating high versatility and flexibility. Furthermore, the structures of the first limiting piece 221 and the second limiting piece 222 in this embodiment are relatively simple, and they are mounted on the support frame 10, occupying minimal space. They also cooperate well with other parts of the device, making the overall structure more compact and rational.

[0051] Further, see Figures 3 to 5As shown, in this embodiment, the first limiting piece 221 has a first through hole (not shown in the figure), and the second limiting piece 222 has a second through hole (not shown in the figure). The second limiting component 22 also includes a plug screw 223 and a lock nut 224. The plug screw 223 is disposed at the first through hole and extends in a direction away from the support frame 10. The second limiting piece 222 is sleeved on the plug screw 223 through the second through hole. The lock nut 224 is rotatably sleeved on the plug screw 223 and is located on the side of the second limiting piece 222 away from the first limiting piece 221.

[0052] Specifically, since the plug screw 223 in this embodiment is located at the first through hole, it can expand radially when pressed, thereby forming an interference fit with the first limiting piece 221. Since the plug screw 223 in this embodiment passes through the first through hole of the first limiting piece 221 and extends in a direction away from the support frame 10, and the second limiting piece 222 is sleeved on the plug screw 223 through the second through hole, the second limiting piece 222 and the first limiting piece 221 are rotatably connected, so that the second limiting piece 222 can rotate flexibly between the locked position and the released position to meet the operational requirements of installing and disassembling the fuel cell stack 30.

[0053] Meanwhile, since the anti-loosening nut 224 in this embodiment is located on the side of the second limiting piece 222 away from the first limiting piece 221, the position and tightness of the second limiting piece 222 on the locking screw 223 can be adjusted by rotating the anti-loosening nut 224. That is to say, when installing the fuel cell stack 30, the second limiting piece 222 must first be adjusted to the locked position, and then the anti-loosening nut 224 must be tightened so that the second limiting piece 222 tightly abuts against the fuel cell stack 30, thereby firmly locking the fuel cell stack 30 in the receiving groove 11; when it is necessary to disassemble the fuel cell stack 30, simply loosen the anti-loosening nut 224, and the second limiting piece 222 can be easily rotated to the release position, which is simple and convenient to operate.

[0054] Further, see Figure 5 As shown, the second limiting component 22 in this embodiment further includes an elastic element 225, which is sleeved on the plug screw 223 and located between the first limiting piece 221 and the second limiting piece 222. Exemplarily, the elastic element 225 in this embodiment includes an elastic washer. Of course, in other embodiments of this application, the elastic element 225 can also be configured as a spring, elastic sleeve, or other structure. Any other variations within the scope of this application's concept are within the protection range of this application.

[0055] Specifically, when the second limiting piece 222 abuts against the fuel cell stack 30, the elastic element 225 can buffer the impact force of the second limiting piece 222 on the fuel cell stack 30, avoiding damage to the fuel cell stack 30 from hard contact. Simultaneously, during equipment operation, if vibration or shaking occurs, the elastic element 225 can also act as a buffer, reducing the vibration impact on the fuel cell stack 30 and protecting its stability and safety. At the same time, because the elastic element 225 has a certain elastic deformation capability, it can automatically adjust the position between the second limiting piece 222 and the first limiting piece 221 according to the actual size and shape of the fuel cell stack 30, as well as minor deviations during installation. This allows the second limiting piece 222 to better fit the fuel cell stack 30, enhancing the limiting effect on the fuel cell stack 30 and improving the adaptability and versatility of the entire second limiting assembly 22.

[0056] Further, see Figure 2 As shown, the second limiting component 22 in this embodiment includes two components. The two second limiting components 22 are disposed on the support frame 10 and located at opposite ends of the opening 12 along the length direction of the support frame 10, and the two second limiting components 22 respectively abut against the fuel cell stack 30.

[0057] Specifically, the two second limiting components 22 abut against the two ends of the fuel cell stack 30 respectively, which enables the fuel cell stack 30 to be subjected to a uniform force within the receiving groove 11. This avoids uneven force on the fuel cell stack 30 caused by limiting only one point or one side, which helps to maintain the balance and stability of the fuel cell stack 30 and prevents the fuel cell stack 30 from tilting or shifting within the receiving groove 11. Especially when the equipment is subjected to external forces or vibrations during operation, it can better protect the fuel cell stack 30 and reduce the risk of damage caused by uneven force.

[0058] Further, see Figure 1 As shown, the receiving slot 11 in this embodiment includes multiple rows, and the multiple rows of receiving slots 11 are spaced apart along the height direction of the support frame 10. Each row of receiving slots 11 includes multiple receiving slots 11 spaced apart along the length direction of the support frame 10. The electric stack 30 includes multiple electric stacks 30, and the multiple electric stacks 30 are arranged one-to-one in the multiple receiving slots 11.

[0059] Optionally, the receiving slot 11 in this embodiment can be configured as two rows, three rows or more, and each row of receiving slot 11 may include two receiving slots 11, three receiving slots 11 or more receiving slots 11. This application does not make specific limitations.

[0060] Specifically, multiple rows of receiving slots 11 are spaced apart along the height of the support frame 10, and each row has multiple receiving slots 11 spaced apart along the length. This layout makes full use of the space of the support frame 10, allowing multiple fuel cell stacks 30 to be placed in a limited space, increasing the number of fuel cell stacks 30 installed, improving space utilization efficiency, and making the equipment more compact. The centralized placement of multiple fuel cell stacks 30 within the receiving slots 11 of the support frame 10 facilitates unified management and maintenance of the fuel cell stacks 30. Personnel can more easily inspect, maintain, and repair all fuel cell stacks 30, reducing maintenance time and costs. It also facilitates monitoring the operating status of the fuel cell stacks 30, allowing for timely detection and handling of problems. Simultaneously, each fuel cell stack 30 has a corresponding receiving slot 11 with a relatively fixed position, and the receiving slots 11 are spaced apart from each other, helping to reduce mutual interference between fuel cell stacks 30. During equipment operation, it can better withstand various external forces and vibrations, improving the stability and reliability of the system.

[0061] Furthermore, in this embodiment, the first limiting component 21, the second limiting component 22, and the limiting member 23 are all made of corrosion-resistant materials (such as stainless steel, metal alloys, etc.), so that they can maintain their functional integrity in humid or chemically corrosive environments.

[0062] Furthermore, in this embodiment, the support frame 10, the first limiting component 21, the second limiting component 22, and the limiting member 23 are all rounded to avoid scratching personnel or equipment during operation.

[0063] On the other hand, this application also provides a hydrogen production system that includes the aforementioned stationary device. Therefore, this hydrogen production system includes all the technical effects of the aforementioned stationary device. Since the technical effects of the stationary device have already been described in detail above, they will not be repeated here.

[0064] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0065] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0066] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A fixing device, said fixing device being used at least for fixing a fuel cell stack (30), characterized in that, The fixing device includes: A support frame (10) is provided with a receiving groove (11) and an opening (12) communicating with the receiving groove (11), and the fuel cell stack (30) is detachably disposed in the receiving groove (11); A limiting mechanism (20) is provided on the support frame (10). The limiting mechanism (20) includes a first limiting component (21) and a second limiting component (22). At least a portion of the first limiting component (21) surrounds the fuel cell stack (30) on opposite sides along the length direction of the support frame (10). The second limiting component (22) is provided on the outer periphery of the opening (12) and abuts against the fuel cell stack (30).

2. The fixing device according to claim 1, characterized in that, The first limiting component (21) includes: A support portion (211) is provided on the support frame (10); A stop (212) is provided on the outer edge of the bearing part (211) and extends along the height direction of the support frame (10). The stop (212) is provided with a first clearance notch (213) for the wiring terminal (40) to pass through. The stop (212) and the bearing part (211) surround to form the receiving groove (11). At least part of the stop (212) surrounds the two opposite sides of the fuel cell stack (30) along the length direction of the support frame (10).

3. The fixing device according to claim 2, characterized in that, The support portion (211) is provided with a second clearance notch (214) near the opening (12), and the second clearance notch (214) is provided through the thickness direction of the support portion (211).

4. The fixing device according to claim 2, characterized in that, A limiting member (23) is provided on the bearing part (211). The limiting member (23) includes a connecting section (231) and a plug-in section (232). The connecting section (231) is connected to the bearing part (211) and extends along the height direction of the support frame (10). The plug-in section (232) is located on the side of the connecting section (231) away from the bearing part (211) and extends along the width direction of the support frame (10). A limiting groove is provided on the side wall of the fuel cell stack (30), and the plug-in section (232) is inserted into the limiting groove.

5. The fixing device according to claim 1, characterized in that, The second limiting component (22) includes a first limiting piece (221) and a second limiting piece (222). The first limiting piece (221) is disposed on the support frame (10), and the second limiting piece (222) is rotatably disposed on the first limiting piece (221). The second limiting piece (222) has a locking position that abuts against the fuel cell stack (30) to lock the fuel cell stack (30) in the receiving groove (11), and a release position that rotates by a predetermined angle to separate from the fuel cell stack (30). When the second limiting piece (222) is in the locked position, the second limiting piece (222) is in surface contact with the stack (30).

6. The fixing device according to claim 5, characterized in that, The first limiting piece (221) has a first through hole, and the second limiting piece (222) has a second through hole; The second limiting component (22) further includes a stop screw (223) and a lock nut (224). The stop screw (223) is disposed at the first through hole and extends in a direction away from the support frame (10). The second limiting piece (222) is sleeved on the stop screw (223) through the second through hole. The lock nut (224) is rotatably sleeved on the stop screw (223) and is located on the side of the second limiting piece (222) away from the first limiting piece (221).

7. The fixing device according to claim 6, characterized in that, The second limiting component (22) further includes an elastic element (225), which is sleeved on the stop screw (223) and located between the first limiting piece (221) and the second limiting piece (222).

8. The fixing device according to any one of claims 1 to 7, characterized in that, The second limiting component (22) includes two components, which are disposed on the support frame (10) and located at opposite ends of the opening (12) along the length direction of the support frame (10), and the two second limiting components (22) respectively abut against the fuel cell stack (30).

9. The fixing device according to any one of claims 1 to 7, characterized in that, The receiving slot (11) includes multiple rows, and the multiple rows of receiving slots (11) are spaced apart along the height direction of the support frame (10), and each row of receiving slots (11) includes multiple receiving slots (11) spaced apart along the length direction of the support frame (10); The battery stack (30) includes multiple stacks, and the multiple battery stacks (30) are arranged one-to-one in the multiple receiving slots (11).

10. A hydrogen production system, characterized in that, The hydrogen production system includes the stationary device as described in any one of claims 1 to 9.

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