A hydrogen controller

Abstract

The application relates to the field of hydrogen controllers and discloses a hydrogen controller which comprises a bottom plate and a controller body, a protection frame is arranged on the upper side of the bottom plate, the controller body is arranged on the middle of the upper surface of the bottom plate through a distance-keeping structure, a first protection structure is arranged on the side of the protection frame, and a cover plate is arranged on the top end of the protection frame. The hydrogen controller is safely protected by the protection frame. When the hydrogen controller is impacted by the outside world, the impact force is guided to be buffered horizontally by the movement of the buffer plate and the cooperation of the first protection structure. When the impact force is too large, the positioning structure can automatically release the positioning of the second protection structure, so that the second protection structure is released to cooperate in the buffering protection work, and the protection intensity of the hydrogen controller is improved.

Description

Technical Field

[0001] This invention relates to the technical field of hydrogen controllers, and more particularly to a hydrogen controller. Background Technology

[0002] The hydrogen controller is a core electronic device used to control the operation of hydrogen energy systems or fuel cell systems. It is mainly used in hydrogen fuel cell vehicles, industrial hydrogen energy equipment and other fields.

[0003] In existing hydrogen controllers, internal and external heat dissipation structures are incorporated into the housing. The semiconductor cooling chips and fans on these structures can directly dissipate heat inside the housing. Simultaneously, multiple hollow heat dissipation fins on the internal and external heat dissipation structures can also dissipate heat from the outside of the hydrogen controller. This combination of internal and external heat dissipation significantly improves the heat dissipation effect, while also preventing condensation inside the housing, thus extending the lifespan of the hydrogen controller. Furthermore, the fans can accelerate the air circulation inside the housing and heat dissipation fins, better removing heat generated by the components inside the housing and improving the heat dissipation speed.

[0004] However, when a hydrogen controller is installed in a vehicle, if it is damaged by external factors, it will be unable to monitor the vehicle's safety, creating a safety hazard. Therefore, the safety protection of the hydrogen controller is particularly important. Summary of the Invention

[0005] To address the problems mentioned in the background section, the present invention provides a hydrogen controller.

[0006] The hydrogen controller provided by this invention adopts the following technical solution:

[0007] A hydrogen controller includes a base plate and a controller body. A protective frame is provided at the upper edge of the base plate, and the controller body is provided in the middle of the base plate through a tension structure. A first protective structure is provided on the side of the protective frame, and a cover plate is provided at the top of the protective frame.

[0008] The first protective structure includes openings on four sides of the protective frame. A guide groove is provided at each opening on the base plate, and a guide block is provided in the guide groove. A buffer plate is installed on each guide block. An outer protective plate is provided on the buffer plate through a lifting structure. A first fixed seat is provided on the inner side of the buffer plate. Two first curved plates are rotatably connected to the first fixed seat. A through plate is rotatably connected to one end of the first curved plate. Multiple sets of buffer rods move through the inner wall edge of the protective frame. A first movable plate is fixedly sleeved at one end of each set of two buffer rods inserted into the protective frame. A second protective structure is provided between the buffer rods and the protective frame. The through plate moves through the first movable plate. A positioning structure is provided between the first movable plate and the protective frame. A second movable plate is provided at one end of the through plate. A first spring connects the second movable plate and the first movable plate.

[0009] Preferably, the second protective structure includes an outer buffer block connected to the other end of the buffer rod, a first groove is provided on the outer side of the protective frame for the outer buffer block to be inserted into, and a second spring is sleeved on the buffer rod, with the two ends of the second spring connected to the first movable plate and the inner wall of the protective frame, respectively.

[0010] Preferably, the positioning structure includes a slot on the inner wall of the protective frame near the buffer rod, a plate is movably inserted into the slot, one end of the plate is connected to a locking block, the locking block is movably inserted into a slot on the first movable plate, the locking block has a first driving groove, and fixing strips are attached to both the upper and lower sides of the plate, one end of the fixing strip is connected to the second movable plate, and the other end of the fixing strip is fixedly passed through the driving rod, which movably passes through the first driving groove.

[0011] Preferably, the lifting structure includes an inner groove formed on the buffer plate, an inner plate movably disposed in the inner groove, and a connecting block connecting the middle of one side of the inner plate to the outer protective plate. Both the buffer plate and the inner plate have through grooves, and a driving plate is movably inserted into the through grooves. One end of the driving plate is fixedly connected to the inner wall of the protective frame. A first through rod is connected between the two end walls of the through groove on the inner plate. A second driving groove is formed on the driving plate, and the first through rod movably passes through the second driving groove. A third protective structure is provided between the inner plate and the lower wall of the inner groove.

[0012] Preferably, the third protective structure includes two second fixed seats installed at both ends of the lower wall of the inner tank, a fixed rod connecting the two ends of the second fixed seats to the tank walls, a first movable block slidably disposed in the second fixed seat, the first movable block being movably sleeved on the fixed rod, a third spring being sleeved on the fixed rod, the two ends of the third spring being respectively connected to the inner wall of one end of the first movable block and the second fixed seat, and a second curved plate being rotatably connected between the first movable block and the inner plate.

[0013] Preferably, the tension structure includes a third fixed seat installed in the middle of the base plate. The inner walls of the four sides of the third fixed seat are provided with second grooves. A second moving block is slidably arranged in each second groove. A second through rod is connected between each pair of second moving blocks. The two second through rods are distributed on the upper and lower horizontal planes. A tension extender is movably sleeved on the two second through rods. A fourth spring is sleeved on the second through rod. The two ends of the fourth spring are respectively connected to the second moving block and the tension extender. A mounting plate is provided on the tension extender. The controller body is mounted on the mounting plate. A push structure is provided between the mounting plate and the buffer plate.

[0014] Preferably, the pushing structure includes four pushing plates connected to the four sides of the mounting plate. Each of the pushing plates has a third groove on two sides. The inner walls of the protective frame are connected to a first pushing strip on both sides, and the inner walls of the other two sides of the protective frame are connected to a second pushing strip. One end of the second pushing strip and the first pushing strip are inserted into the third groove at the corresponding position. The first pushing strip has a through groove for the second pushing strip to move through.

[0015] Preferably, the cover plate is fastened to the protective frame with bolts, and two inspection doors are provided on the cover plate.

[0016] In summary, the present invention has the following beneficial technical effects:

[0017] 1. This invention provides a buffer plate, a first protective structure, a second protective structure, and a positioning structure on a protective frame. The main body of the hydrogen controller is installed in the protective frame, which provides safety protection for the hydrogen controller. When subjected to external impact, the movement of the buffer plate, in conjunction with the first protective structure, guides the impact force to the lateral direction for buffering protection. If the impact force is too large, the positioning structure can automatically release the second protective structure, thereby releasing the second protective structure to cooperate in buffering protection, thus improving the protection of the hydrogen controller.

[0018] 2. By setting up an outer protective plate, a lifting structure, and a third protective structure, the outer protective plate is driven to move downward on the buffer plate during the movement and buffering process. This guides part of the force generated during the impact to the vertical downward direction. In addition, the third protective structure is used for buffering to further improve the protection.

[0019] 3. By setting up a pushing structure and a pulling structure, during the process of the corresponding buffer plate being impacted and moved, the pushing structure and the pulling structure drive the hydrogen controller body to move away from the corresponding buffer, thereby increasing the distance between the hydrogen controller body and the corresponding buffer plate, avoiding the problem of the buffer plate directly hitting the hydrogen controller body and causing damage, thus providing a higher protection effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a hydrogen controller according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the protective frame in an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the first and second buffer structures within the protective frame in an embodiment of the present invention;

[0023] Figure 4 This is an embodiment of the present invention. Figure 3 Enlarged view of the structure at point A;

[0024] Figure 5 This is an embodiment of the present invention. Figure 3 Enlarged view of the structure at point B;

[0025] Figure 6 This is a schematic diagram of the structure of the buffer plate in an embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of the inner side of the buffer plate in an embodiment of the present invention;

[0027] Figure 8 This is a schematic diagram of the internal structure of the buffer plate in an embodiment of the present invention;

[0028] Figure 9 This is an embodiment of the present invention. Figure 8 Enlarged view of the structure at point C;

[0029] Figure 10 This is an embodiment of the present invention. Figure 8 Enlarged view of the structure at point D;

[0030] Figure 11 This is a schematic diagram of the internal structure of the third fixing seat in an embodiment of the present invention.

[0031] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. Protective frame; 3. Cover plate; 4. Controller body; 5. Opening; 6. Buffer plate; 7. Guide groove; 8. Outer protective plate; 9. First fixed seat; 10. First curved plate; 11. Buffer rod; 12. First moving plate; 13. Second moving plate; 14. First spring; 15. Outer buffer block; 16. First groove; 17. Second spring; 18. Insert plate; 19. Locking block; 20. Slot; 21. Fixing strip; 22. Driving rod; 23. First driving groove; 24. Through plate; 25. Through groove; 26. 27. Drive plate; 28. Second drive groove; 29. ​​Inner groove; 30. First through rod; 31. Second curved plate; 32. Second fixed seat; 33. Fixed rod; 34. Third spring; 35. First moving block; 36. Inner plate; 37. Connecting block; 38. Second groove; 39. Second moving block; 40. Second through rod; 41. Fourth spring; 42. Extending seat; 43. Third fixed seat; 44. Third groove; 45. Push plate; 46. First push bar; 47. Second push bar; 48. Through groove; 49. Mounting plate; 40. Inspection door. Detailed Implementation

[0032] The following is in conjunction with the appendix Figures 1-10 The present invention will be described in further detail below.

[0033] Reference Figures 1-10 The present invention discloses a hydrogen controller, including a base plate 1 and a controller body 4. A protective frame 2 is provided at the upper edge of the base plate 1, and the controller body 4 is provided in the middle of the upper part of the base plate 1 through a tension structure. A first protective structure is provided on the side of the protective frame 2, and a cover plate 3 is provided at the top of the protective frame 2.

[0034] The first protective structure includes openings 5 ​​on the four sides of the protective frame 2. A guide groove 7 is provided at each opening 5 on the bottom plate 1. A guide block is provided in the guide groove 7. A buffer plate 6 is installed on each guide block. An outer protective plate 8 is provided on the buffer plate 6 through a lifting structure. A first fixed seat 9 is provided on the inner side of the buffer plate 6. Two first curved plates 10 are rotatably connected to the first fixed seat 9. One end of the first curved plate 10 is rotatably connected to a through plate 24. Multiple sets of buffer rods 11 move through the inner wall edge of the protective frame 2. One end of each set of two buffer rods 11 is fixedly fitted with a first movable plate 12. A second protective structure is provided between the buffer rods 11 and the protective frame 2. The through plate 24 moves through the first movable plate 12. A positioning structure is provided between the first movable plate 12 and the protective frame 2. A second movable plate 13 is provided at one end of the through plate 24. A first spring 14 is connected between the second movable plate 13 and the first movable plate 12.

[0035] The second protective structure includes an outer buffer block 15 connected to the other end of the buffer rod 11. A first groove 16 is provided on the outer side of the protective frame 2 for the outer buffer block 15 to be inserted into. A second spring 17 is sleeved on the buffer rod 11. The two ends of the second spring 17 are respectively connected to the first movable plate 12 and the inner wall of the protective frame 2.

[0036] The positioning structure includes a slot 20 located on the inner wall of the protective frame 2 near the buffer rod 11. A plate 18 is movably inserted into the slot 20. One end of the plate 18 is connected to a locking block 19, which is movably inserted into a slot on the first movable plate 12. The locking block 19 has a first driving groove 23. Fixing strips 21 are attached to both the upper and lower sides of the plate 18. One end of the fixing strip 21 is connected to the second movable plate 13, and the other end of the fixing strip 21 is fixedly passed through the driving rod 22. The driving rod 22 moves through the first driving groove 23. When the vehicle is subjected to external force acting on the buffer plate 6, it pushes the corresponding buffer plate 6, causing the guide block to move in the guide groove 7 towards the side closer to the hydrogen controller body 4. Furthermore, the first curved plate 10 pushes the through plate 24 to move on the first movable plate 12, and the second movable plate 13 stretches the first... Spring 14 guides the impact force to the horizontal direction for buffering, thus providing safety protection for the hydrogen controller. When the impact force is too large, as the second moving plate 13 moves to buffer, it also drives the driving rod 22 at one end of the fixed bar 21 to slide in the first driving groove 23. By using the squeezing of the groove wall of the first driving groove 23 by the driving rod 22, the insert plate 18 is pushed to the side away from the first moving plate 12, thereby pushing the locking block 19 out of the locking groove of the first moving plate 12 and releasing the positioning of the first moving plate 12 on the protective frame 2. In this way, when the impact force is too large, the continued movement of the second moving plate 13 pulls the buffer rod 11 to drive the outer buffer block 15 to move on the protective frame 2. By pulling the second spring 17, the safety protection work is further carried out, and the protection effect is better.

[0037] The cover plate 3 is fastened to the protective frame 2 with bolts. Two maintenance doors 49 are provided on the cover plate 3. When the hydrogen controller body 4 is being inspected, the two maintenance doors 49 can be opened directly on the cover plate 3 without disassembling the bolts, making the operation more labor-saving and convenient.

[0038] See Figures 6-10The lifting structure includes an inner groove 28 on the buffer plate 6, an inner plate 35 is movably disposed in the inner groove 28, and one side of the inner plate 35 is connected to the outer protective plate 8 through a connecting block 36. Both the buffer plate 6 and the inner plate 35 are provided with through grooves 25, and a driving plate 26 is movably inserted into the through groove 25. One end of the driving plate 26 is fixedly connected to the inner wall of the protective frame 2. A first through rod 29 is connected between the two ends of the through groove 25 on the inner plate 35. A second driving groove 27 is provided on the driving plate 26, and the first through rod 29 moves through the second driving groove 27. A third protective structure is provided between the inner plate 35 and the lower groove wall of the inner groove 28.

[0039] The third protective structure includes two second fixed seats 31 installed at both ends of the lower wall of the inner groove 28. A fixed rod 32 connects the two ends of the second fixed seats 31 to the groove walls. A first movable block 34 is slidably disposed within the second fixed seat 31 and is movably sleeved on the fixed rod 32. A third spring 33 is sleeved on the fixed rod 32. The two ends of the third spring 33 are respectively connected to the inner walls of one end of the first movable block 34 and the second fixed seat 31. A second curved plate 30 is rotatably connected between the first movable block 34 and the inner plate 35. During the movement of the buffer plate 6, the first through rod 29 on the inner plate 35 drives the plate 26. The inner plate 35 slides in the second drive groove 27, and the second drive groove 27 guides the first through rod 29, pushing the inner plate 35 to move downward in the inner groove 28. Through the connecting block 36, the outer protective plate 8 moves downward on the moving buffer plate 6 during the movement of the buffer plate 6, thereby guiding part of the impact force to rotate vertically downward. The downward movement of the inner plate 35 pushes the first moving block 34 to slide in the second fixed seat 31 through the second curved plate 30, compressing the third spring 33, thereby buffering the vertical downward force and further improving the safety protection effect.

[0040] See 1. Figure 2 , Figure 3 and Figure 10 The tension structure includes a third fixed seat 42 installed in the middle of the base plate 1. The inner walls of the four sides of the third fixed seat 42 are provided with second grooves 37. A second moving block 38 is slidably arranged in each second groove 37. A second through rod 39 is connected between each pair of second moving blocks 38. The two second through rods 39 are distributed on the upper and lower horizontal planes. A tension extender 41 is movably sleeved on the two second through rods 39. A fourth spring 40 is sleeved on the second through rods 39. The two ends of the fourth spring 40 are respectively connected to the second moving block 38 and the tension extender 41. A mounting plate 48 is provided on the tension extender 41. The controller body 4 is installed on the mounting plate 48. A push structure is provided between the mounting plate 48 and the buffer plate 6.

[0041] The pushing structure includes four pushing plates 44 connected to the four sides of the mounting plate 48. Two sides of each pushing plate 44 have a third groove 43. The inner walls of the protective frame 2 have first pushing strips 45 connected to both sides, and second pushing strips 46 connected to the inner walls of the other two sides. One end of each of the second pushing strips 46 and the first pushing strips 45 is inserted into the corresponding third groove 43. A gap is left between the ends of the first pushing strips 45 and the second pushing strips 46 and the inner wall of the third groove 43. The first pushing strip 45 has a through groove 47 for the second pushing strip 46 to pass through. One of the buffer plates 6 on the protective frame 2... During the impact and movement, the buffer plate 6 drives the corresponding first push bar 45 or second push bar 46 to move. One end of the moving first push bar 45 or second push bar 46 pushes the inner end wall of the third groove 43, thereby pushing the spacer 41 to move away from the corresponding buffer plate 6 in the third fixed seat 42. This increases the distance between the corresponding buffer plate 6 and the hydrogen controller body 4, and causes the fourth spring 40 to deform for buffering. This further improves the safety protection of the hydrogen controller body 4, reduces the possibility of damage to the hydrogen controller body 4 due to impact, and ensures the quality of the hydrogen controller body 4's safety monitoring of the vehicle.

[0042] The implementation principle of a hydrogen controller according to an embodiment of the present invention is as follows: When the vehicle is subjected to an external force acting on the buffer plate 6, the corresponding buffer plate 6 is pushed to move the guide block in the guide groove 7 towards the side closer to the hydrogen controller body 4. The first curved plate 10 pushes the through plate 24 to move on the first moving plate 12, and the second moving plate 13 stretches the first spring 14 to guide the impact force to the horizontal direction for buffering, thereby providing safety protection for the hydrogen controller. When the impact force is too large, the movement of the second moving plate 13 also buffers the impact and drives the driving rod 22 at one end of the fixed strip 21. Sliding in the first driving groove 23, the insertion plate 18 is pushed away from the first moving plate 12 by the squeezing of the groove wall of the first driving groove 23 by the driving rod 22. This pushes the locking block 19 out of the locking groove of the first moving plate 12, releasing the positioning of the first moving plate 12 on the protective frame 2. In this way, when the impact force is too large, the continued movement of the second moving plate 13 pulls the buffer rod 11, which drives the outer buffer block 15 to move on the protective frame 2. By pulling the second spring 17, the safety protection is further improved, and the protection effect is better. During the movement of the buffer plate 6, the first through rod 29 on the inner plate 35 is driven. The inner plate 35 slides in the second driving groove 27 of the driving plate 26. Utilizing the guiding effect of the second driving groove 27 on the first through rod 29, the inner plate 35 is pushed downwards in the inner groove 28. Through the connecting block 36, during the movement of the buffer plate 6, the outer protective plate 8 is driven to move downwards on the moving buffer plate 6, thereby guiding part of the impact force to a vertically downward rotation. Furthermore, the downward movement of the inner plate 35, through the second curved plate 30, pushes the first moving block 34 to slide in the second fixed seat 31, compressing the third spring 33, thus buffering the vertically downward force and further improving the safety protection effect. At the same time, the movement of the buffer plate 6 causes the corresponding first push bar 45 or second push bar 46 to move. One end of the moving first push bar 45 or second push bar 46 pushes the inner end wall of the third groove 43, thereby pushing the spacer 41 to move away from the corresponding buffer plate 6 in the third fixed seat 42. This increases the distance between the corresponding buffer plate 6 and the hydrogen controller body 4, and causes the fourth spring 40 to deform for buffering. This further improves the safety protection of the hydrogen controller body 4, reduces the possibility of damage to the hydrogen controller body 4 due to impact, and ensures the quality of the hydrogen controller body 4's safety monitoring of the vehicle.

[0043] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A hydrogen controller, comprising a base plate (1) and a controller body (4), characterized in that: A protective frame (2) is provided on the upper edge of the base plate (1), and a controller body (4) is provided in the middle of the top of the base plate (1) through a tension structure. A first protective structure is provided on the side of the protective frame (2), and a cover plate (3) is provided on the top of the protective frame (2). The first protective structure includes openings (5) on four sides of the protective frame (2). A guide groove (7) is provided at each opening (5) on the base plate (1). A guide block is provided in each guide groove (7), and a buffer plate (6) is installed on each guide block. An outer protective plate (8) is provided on the buffer plate (6) via a lifting structure. A first fixed seat (9) is provided on the inner side of the buffer plate (6). Two first curved plates (10) are rotatably connected to the first fixed seat (9). One end of each first curved plate (10) is rotatably connected to a through plate (24). Multiple sets of buffer rods (11) move through the inner wall edge of the protective frame (2). Each set of two buffer rods (11) is inserted into the protective frame (2) and a first movable plate (12) is fixedly sleeved at one end. A second protective structure is set between the buffer rods (11) and the protective frame (2). The through plate (24) moves through the first movable plate (12). A positioning structure is set between the first movable plate (12) and the protective frame (2). A second movable plate (13) is set at one end of the through plate (24). A first spring (14) is connected between the second movable plate (13) and the first movable plate (12). The second protective structure includes an outer buffer block (15) connected to the other end of the buffer rod (11), and a first groove (16) for the outer buffer block (15) to be inserted into the outer side of the protective frame (2). A second spring (17) is sleeved on the buffer rod (11), and the two ends of the second spring (17) are respectively connected to the first moving plate (12) and the inner wall of the protective frame (2). The positioning structure includes a slot (20) on the inner wall of the protective frame (2) near the buffer rod (11). A plate (18) is movably inserted into the slot (20). One end of the plate (18) is connected to a locking block (19). The locking block (19) is movably inserted into a slot on the first moving plate (12). A first driving groove (23) is provided on the locking block (19). Fixing strips (21) are attached to both the upper and lower sides of the plate (18). One end of the fixing strip (21) is connected to the second moving plate (13). The other end of the fixing strip (21) is fixedly passed through the driving rod (22). The driving rod (22) moves through the first driving groove (23).

2. A hydrogen controller according to claim 1, characterized in that: The lifting structure includes an inner groove (28) on a buffer plate (6), an inner plate (35) is movably arranged in the inner groove (28), and one side of the inner plate (35) is connected to the outer protective plate (8) through a connecting block (36). Both the buffer plate (6) and the inner plate (35) have through grooves (25). A driving plate (26) is movably inserted into the through groove (25). One end of the driving plate (26) is fixedly connected to the inner wall of the protective frame (2). A first through rod (29) is connected between the two ends of the through groove (25) on the inner plate (35). A second driving groove (27) is opened on the driving plate (26). The first through rod (29) moves through the second driving groove (27). A third protective structure is provided between the inner plate (35) and the lower groove wall of the inner groove (28).

3. A hydrogen controller according to claim 2, characterized in that: The third protective structure includes two second fixed seats (31) installed at both ends of the lower wall of the inner groove (28). A fixed rod (32) is connected between the two ends of the groove walls of the second fixed seat (31). A first moving block (34) is slidably arranged in the second fixed seat (31). The first moving block (34) is movably sleeved on the fixed rod (32). A third spring (33) is sleeved on the fixed rod (32). The two ends of the third spring (33) are respectively connected to the inner wall of one end of the first moving block (34) and the second fixed seat (31). A second curved plate (30) is rotatably connected between the first moving block (34) and the inner plate (35).

4. A hydrogen controller according to claim 1, characterized in that: The tension structure includes a third fixed seat (42) installed in the middle of the base plate (1). The inner walls of the four sides of the third fixed seat (42) are provided with second grooves (37). A second moving block (38) is slidably arranged in each second groove (37). A second through rod (39) is connected between each pair of second moving blocks (38). The two second through rods (39) are distributed on the upper and lower horizontal planes. An extension seat (41) is movably sleeved on the two second through rods (39). A fourth spring (40) is sleeved on the second through rod (39). The two ends of the fourth spring (40) are respectively connected to the second moving block (38) and the extension seat (41). An installation plate (48) is provided on the extension seat (41). The controller body (4) is installed on the installation plate (48). A push structure is provided between the installation plate (48) and the buffer plate (6).

5. A hydrogen controller according to claim 4, characterized in that: The pushing structure includes four pushing plates (44) connected to the four sides of the mounting plate (48). Each of the pushing plates (44) has a third groove (43) on two sides. The protective frame (2) has a first pushing strip (45) connected to the inner walls on both sides. The protective frame (2) has a second pushing strip (46) connected to the inner walls on the other two sides. One end of the second pushing strip (46) and the first pushing strip (45) are inserted into the third groove (43) at the corresponding position. The first pushing strip (45) has a through groove (47) for the second pushing strip (46) to move through.

6. A hydrogen controller according to claim 1, characterized in that: The cover plate (3) is fastened to the protective frame (2) by bolts, and two inspection doors (49) are provided on the cover plate (3).

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