High-power fuel cell switch electromagnetic valve

Abstract

The utility model discloses a high-power fuel cell switch electromagnetic valve, which relates to the technical field of electromagnetic switch valves and comprises a runner valve chamber, an actuating mechanism bin and a heating component, the actuating mechanism bin is fixedly mounted on one side of the runner valve chamber, and the heating component is fixedly connected to the other side of the runner valve chamber through a heating connecting wire; an air inlet pipe and an air outlet pipe are fixedly connected to the upper side and the lower side of the flow channel valve chamber respectively, a blocking block is slidably installed in the flow channel valve chamber in a sealed mode, a communicating pipe is fixedly connected to the side, close to the executing mechanism bin, of the blocking block, and a sliding box is slidably installed in the flow channel valve chamber and fixedly connected with the other side of the communicating pipe. According to the direct-acting normally-open type electromagnetic valve, the communicating pipe is arranged on the blocking block, the blocking block slides in the flow channel valve chamber, the communicating pipe is located on the same axis of the air inlet pipe and the air outlet pipe, and then a direct-acting normally-open type electromagnetic valve structure is formed; therefore, the flow resistance of hydrogen passing through the electromagnetic valve is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic switching valves, and particularly relates to a high-power fuel cell switching solenoid valve. Background Art

[0002] The working principle of a fuel cell switching solenoid valve is mainly based on the principle of electromagnetic induction. When an electric current passes through the coil of the solenoid valve, a magnetic field will be generated. This magnetic field will attract or repel the iron core or piston inside the valve, thereby opening or closing the valve. By controlling the presence, absence or magnitude of the electric current, precise control of the valve's open and closed states can be achieved, and thus the flow of fuel can be controlled.

[0003] A solenoid valve for a hydrogen fuel cell disclosed in Chinese Patent CN219827887U includes: a flow channel valve chamber, an actuator chamber fixedly connected to the flow channel valve chamber, a heating sheet and a temperature sensor provided in the flow channel valve chamber, a solenoid valve coil provided on the actuator chamber, a static iron core provided inside the solenoid valve coil, the static iron core being fixedly connected to the actuator chamber, a moving iron core movably connected to the static iron core, and an elastic member provided between the static iron core and the moving iron core; a sealing assembly fixedly connected to the flow channel valve chamber, fixedly connected to the actuator chamber, and movably connected to the moving iron core.

[0004] When the above-mentioned existing solenoid valve is in use, a plug is used to swing up and down to achieve the normally closed and normally open states of the solenoid valve. Hydrogen enters the flow channel valve chamber through the air inlet, and will first impact the surface of the plug, and then enter the flow channel valve chamber, and then be discharged from the air outlet at a right angle to the air inlet. In this process, the hydrogen discharged from the air outlet will first impact the baffle plate, thereby causing an obstruction to the flow of hydrogen, so a large flow resistance will be formed.

[0005] To solve the above problems, the utility model proposes a high-power fuel cell switching solenoid valve. Summary of the Utility Model

[0006] To solve the problems in the background art, the utility model proposes a high-power fuel cell switching solenoid valve.

[0007] To achieve the above object, the utility model provides the following technical solution: A high-power fuel cell switching solenoid valve includes a flow channel valve chamber, an actuator chamber, and a heating assembly.

[0008] The actuator chamber is fixedly installed on one side of the flow channel valve chamber, and the heating component is fixedly connected to the other side of the flow channel valve chamber through a heating connecting wire; an air inlet pipe and an air outlet pipe are respectively fixedly connected to the upper and lower sides of the flow channel valve chamber, a plug is hermetically and slidably installed inside the flow channel valve chamber, a communicating pipe is fixedly connected to the side of the plug close to the actuator chamber, a sliding box is slidably installed inside the flow channel valve chamber, and the sliding box is fixedly connected to the other side of the communicating pipe; sealing connection rings are installed on the upper and lower sides of the inner wall of the communicating pipe in a limited sliding manner.

[0009] An electromagnet is fixedly installed inside the actuator chamber, a second spring is fixedly connected to the electromagnet, the other end of the second spring is fixedly connected to a moving iron core, and the moving iron core is magnetically connected to the electromagnet; a connecting rod is fixedly connected to the side of the moving iron core facing away from the electromagnet, and the other end of the connecting rod slides through to the inside of the sliding box; a linkage assembly is arranged between the connecting rod and the two sealing connection rings.

[0010] Preferably, the linkage assembly includes a slider, a long rod and a connecting seat. Sliding grooves are respectively formed at the upper and lower ends of the side wall of the sliding box, and the sliding box communicates with the communicating pipe through the sliding grooves.

[0011] The slider is slidably installed inside the sliding groove, a first spring is fixedly connected to the upper end surface of the slider, and the other end of the first spring is fixedly connected to the top end inside the sliding groove; the sealing connection ring is fixedly connected to one side of the slider; a long rod is hinged to the other side of the slider, a connecting seat is fixedly installed at the end of the connecting rod facing away from the moving iron core, and the end of the long rod facing away from the slider is rotatably connected to the connecting seat.

[0012] Preferably, the inner diameters of the communicating pipe, the air inlet pipe and the air outlet pipe are the same.

[0013] Preferably, a heating sheet is fixedly installed on the side wall of the flow channel valve chamber, and the heating connecting wire is fixedly connected to the heating sheet.

[0014] Preferably, temperature sensors are installed on the heating connecting wires.

[0015] Preferably, a sealing connection is formed between the sealing connection ring and the inner wall of the communicating pipe, and the sealing connection ring covers the sliding groove.

[0016] Beneficial effects

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] 1. For this high-power fuel cell on-off solenoid valve, by arranging a communicating pipe on the plug and making the plug slide inside the flow channel valve chamber, the communicating pipe is on the same axis as the air inlet pipe and the air outlet pipe, thereby forming a direct-acting normally open solenoid valve structure, effectively reducing the flow resistance of hydrogen passing through the solenoid valve.

[0019] 2. When the plug moves to the left end face and abuts against the left end face wall of the flow channel valve chamber, the connecting rod can continue to move and insert the sealing connection ring into the intake pipe and the exhaust pipe through the connecting seat, the long rod and the slider, improving the sealing performance of the solenoid valve, and thus enhancing the pressure resistance of the solenoid valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present utility model will be further described below in conjunction with the drawings and embodiments:

[0021] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0022] Figure 2 is a schematic diagram of the internal sectional structure of the present utility model;

[0023] Figure 3 For the present utility model Figure 2 is an enlarged schematic diagram at A in;

[0024] Figure 4 For the present utility model Figure 2 is an enlarged schematic diagram at B in.

[0025] Reference numerals: 1, flow channel valve chamber; 2, intake pipe; 3, exhaust pipe; 4, actuator chamber; 5, heating assembly; 6, temperature sensor; 7, heating connection wire; 8, communication pipe; 9, sealing connection ring; 10, sliding box; 11, connecting rod; 12, second spring; 13, moving iron core; 14, electromagnet; 15, plug; 16, slider; 17, first spring; 18, long rod; 19, connecting seat; 20, chute. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The role of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it should not be construed as a limitation on the protection scope of the present utility model.

[0027] Please refer to Figures 1-4 , the present utility model provides a technical solution: a high-power fuel cell switch solenoid valve, including a flow channel valve chamber 1, an actuator chamber 4 and a heating assembly 5; the actuator chamber 4 is fixedly installed on one side of the flow channel valve chamber 1.

[0028] The heating assembly 5 is fixedly connected to the other side of the flow channel valve chamber 1 through a heating connection wire 7.

[0029] Specifically, a heating sheet is fixedly installed on the side wall of the flow channel valve chamber 1, and the heating connection wire 7 is fixedly connected to the heating sheet.

[0030] Temperature sensors 6 are installed on all the heating connection wires 7. By setting the temperature sensors 6, the heating condition of the heating component 5 on the flow channel valve chamber 1 can be observed.

[0031] An intake pipe 2 and an outlet pipe 3 are fixedly connected to the upper and lower sides of the flow channel valve chamber 1 respectively. A plug 15 is installed inside the flow channel valve chamber 1 in a sealed and sliding manner. A connecting pipe 8 is fixedly connected to one side of the plug 15 close to the actuator chamber 4.

[0032] The inner diameters of the connecting pipe 8, the intake pipe 2 and the outlet pipe 3 are the same.

[0033] A sliding box 10 is installed inside the flow channel valve chamber 1 in a sliding manner. The sliding box 10 is fixedly connected to the other side of the connecting pipe 8.

[0034] Sealing connection rings 9 are installed on the upper and lower sides of the inner wall of the connecting pipe 8 in a limited sliding manner.

[0035] A sealed connection is formed between the sealing connection ring 9 and the inner wall of the connecting pipe 8. The sealing connection ring 9 always covers the sliding groove 20 during the moving process.

[0036] An electromagnet 14 is fixedly installed inside the actuator chamber 4. A second spring 12 is fixedly connected to the electromagnet 14. The other end of the second spring 12 is fixedly connected to a moving iron core 13. The moving iron core 13 is magnetically connected to the electromagnet 14; a connecting rod 11 is fixedly connected to the side of the moving iron core 13 facing away from the electromagnet 14. The other end of the connecting rod 11 slides through the inside of the sliding box 10.

[0037] A linkage assembly is arranged between the connecting rod 11 and the two sealing connection rings 9.

[0038] The linkage assembly includes a slider 16, a long rod 18 and a connecting seat 19. Sliding grooves 20 are formed at the upper and lower ends of the side wall of the sliding box 10. The sliding box 10 is communicated with the connecting pipe 8 through the sliding grooves 20.

[0039] The slider 16 is installed inside the sliding groove 20 in a sliding manner. A first spring 17 is fixedly connected to the upper end surface of the slider 16. The other end of the first spring 17 is fixedly connected to the top end inside the sliding groove 20; the sealing connection ring 9 is fixedly connected to one side of the slider 16.

[0040] The other side of the slider 16 is hinged with the long rod 18. A connecting seat 19 is fixedly installed at the end of the connecting rod 11 facing away from the moving iron core 13. The end of the long rod 18 facing away from the slider 16 is rotatably connected to the connecting seat 19.

[0041] Working principle:

[0042] During use, the output end of the mechanism storing hydrogen is communicated with the intake pipe 2. Figure 2As shown, the solenoid valve is in the normally closed state, the electromagnet 14 is energized, and the moving iron core 13 is connected to the electromagnet 14 by magnetic force. At this time, the second spring 12 is in a compressed state. Since the plug 15 is hermetically connected to the flow channel valve chamber 1, hydrogen cannot flow out of the air outlet pipe 3 at this time.

[0043] When the solenoid valve is in the normally open state, the electromagnet 14 is de-energized to lose its magnetism. At this time, under the action of the second spring 12, the moving iron core 13 pushes the connecting rod 11 to move in the direction close to the communicating pipe 8. The movement of the connecting rod 11 pushes the plug 15 to slide in the flow channel valve chamber 1 through the connecting seat 19 and the long rod 18. When the left end face of the plug 15 just abuts against the left end inner wall of the flow channel valve chamber 1, the communicating pipe 8 is exactly on the same axis as the air inlet pipe 2 and the air outlet pipe 3, and a passage is formed at this time.

[0044] Then the second spring 12 continues to recover its deformation and pushes the long rod 18 through the connecting rod 11 and the connecting seat 19. Since the plug cannot move further at this time, the end of the long rod 18 that is rotatably connected to the connecting seat 19 rotates and approaches the communicating pipe 8 at the same time. At this time, one end of the long rod 18 rotates with the slider 16, and at the same time pushes the slider 16 and drives the sealing connection ring 9 to insert into the air inlet pipe 2 and the air outlet pipe 3, further improving the sealing performance of the passage of the communicating pipe 8, thereby improving the durable pressure of the solenoid valve in the normally open state. At this time, the first spring 17 is in a compressed state.

[0045] It makes the sealing performance of the solenoid valve better and improves the durable pressure of the solenoid valve.

[0046] Since the air inlet pipe 2, the air outlet pipe 3 and the communicating pipe 8 are on the same axis to form a direct-acting solenoid valve structure, it can effectively reduce the problem of large flow resistance of the solenoid valve.

[0047] Since the communicating pipe 8 is provided on the plug 15, a vertical passage is formed when the plug 15 slides to the position where the communicating pipe 8 is on the same axis as the air inlet pipe 2 and the air outlet pipe 3. At this time, hydrogen flows through the air inlet pipe 2, the communicating pipe 8 and the air outlet pipe 3 and is discharged, reducing the obstruction of the electromagnetic valve to the gas, thereby reducing the flow resistance of hydrogen passing through the solenoid valve.

[0048] When the solenoid valve is in the normally closed state, the electromagnet 14 is energized to make the electromagnet 14 acquire magnetism. The electromagnet 14 adsorbs the moving iron core 13 onto it by magnetic force. During this process, the moving iron core 13 moves towards the electromagnet 14, pulling the connecting rod 11 and causing the connecting seat 19 to move along with the connecting rod 11. At this time, the long rod 18 loses its compression on the first spring 17, and the first spring 17 restores its deformation, causing the sealing connection ring 9 to slide out of the air inlet pipe 2 and the air outlet pipe 3. When the connecting rod 11 continues to move and the right end face of the plug 15 abuts against the right end face of the flow channel valve chamber 1 through the connecting seat 19 and the long rod 18, the upper connecting pipe 8 of the plug 15 is offset from the air inlet pipe 2 and the air outlet pipe 3, and the upper and lower end faces of the plug 15 seal the air inlet pipe 2 and the air outlet pipe 3, making the solenoid valve in the normally closed state.

[0049] Among them, the use of the independent compartment type with the flow channel valve chamber 1 and the actuator chamber 4 can effectively avoid the corrosion of the actuator components by the fuel cell, improving the service life of the solenoid valve.

[0050] The left end face of the flow channel valve chamber 1 is provided with a heating component 5, which can quickly thaw the flow channel valve chamber 1 of the solenoid valve when starting at a low temperature state, so as to achieve the purpose of quickly starting at a low temperature state and improving the response speed of the solenoid valve at a low temperature state.

[0051] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the said technical field, various changes can also be made without departing from the gist of the present invention.

Claims

1. A high-power fuel cell switching solenoid valve, comprising a flow channel valve chamber (1), an actuator chamber (4) and a heating assembly (5); characterized in that: The actuator chamber (4) is fixedly installed on one side of the flow channel valve chamber (1), and the heating assembly (5) is fixedly connected to the other side of the flow channel valve chamber (1) through a heating connection wire (7); an air inlet pipe (2) and an air outlet pipe (3) are fixedly connected to the upper and lower sides of the flow channel valve chamber (1) respectively. A blocking block (15) is hermetically and slidably installed inside the flow channel valve chamber (1). A communication pipe (8) is fixedly connected to one side of the blocking block (15) close to the actuator chamber (4). A sliding box (10) is slidably installed inside the flow channel valve chamber (1), and the sliding box (10) is fixedly connected to the other side of the communication pipe (8); sealing connection rings (9) are installed on the upper and lower sides of the inner wall of the communication pipe (8) with limited sliding; an electromagnet (14) is fixedly installed inside the actuator chamber (4). A second spring (12) is fixedly connected to the electromagnet (14), and the other end of the second spring (12) is fixedly connected to a moving iron core (13). The moving iron core (13) is magnetically connected to the electromagnet (14); a connecting rod (11) is fixedly connected to the side of the moving iron core (13) away from the electromagnet (14), and the other end of the connecting rod (11) slidably penetrates into the inside of the sliding box (10); a linkage assembly is arranged between the connecting rod (11) and the two sealing connection rings (9).

2. The high-power fuel cell switching solenoid valve according to claim 1, characterized in that: The linkage assembly includes a slider (16), a long rod (18) and a connecting seat (19). Chute grooves (20) are opened at the upper and lower ends of the side wall of the sliding box (10). The sliding box (10) communicates with the communication pipe (8) through the chute grooves (20); the slider (16) is slidably installed inside the chute grooves (20). A first spring (17) is fixedly connected to the upper end surface of the slider (16), and the other end of the first spring (17) is fixedly connected to the top end inside the chute grooves (20); the sealing connection ring (9) is fixedly connected to one side of the slider (16); the other side of the slider (16) is hinged to the long rod (18). A connecting seat (19) is fixedly installed at the end of the connecting rod (11) away from the moving iron core (13), and the end of the long rod (18) away from the slider (16) is rotatably connected to the connecting seat (19).

3. The high-power fuel cell switching solenoid valve according to claim 1, characterized in that: The inner diameters of the communication pipe (8), the air inlet pipe (2) and the air outlet pipe (3) are the same.

4. The high-power fuel cell switch solenoid valve according to claim 1, characterized in that: A heating sheet is fixedly installed on the side wall of the flow channel valve chamber (1), and the heating connection wire (7) is fixedly connected to the heating sheet.

5. The high-power fuel cell switching solenoid valve according to claim 1, wherein: Temperature sensors (6) are installed on the heating connection wires (7).

6. The high-power fuel cell switching solenoid valve according to claim 1, wherein: The sealing connection ring (9) is hermetically connected to the inner wall of the communication pipe (8), and the sealing connection ring (9) covers the chute grooves (20).

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