Hydrogen fuel cell power supply device

Abstract

The hydrogen fuel cell power supply device comprises a power supply box body, and a pressure relief pipe is mounted on the left side of the power supply box body; the air inlet mechanism comprises a fan mounted on the right side of the power supply box body, a cleaning box is fixedly connected to the lower end of the power supply box body, two barrels are symmetrically and fixedly connected to the inner top of the cleaning box, the air outlet end of the fan extends into the power supply box body, and the air inlet end of the fan communicates with an air inlet pipe; the other end of the air inlet pipe communicates with two branch pipes, and the other ends of the two branch pipes extend to the tops in the two barrels correspondingly. In the using process of the device, the filtering part can be automatically replaced when being blocked, workers do not need to manually replace the filtering part, and in the replacing process, the filtering part can be automatically cleaned, so that the continuous usability of the filtering part is ensured.

Description

Technical Field

[0001] The present invention relates to the field of hydrogen fuel cells, and in particular to a hydrogen fuel cell power supply device. Background Art

[0002] A fuel cell is a chemical device that converts the chemical energy of a fuel directly into electrical energy, also known as an electrochemical generator. A hydrogen fuel cell is a type of fuel cell. Traditional hydrogen fuel cell power supply devices need to inhale air and stored hydrogen when in use. The air must be filtered when inhaled. Traditional filters are prone to dirt after long-term use, and the filter replacement process is very cumbersome and time-consuming. Once replaced, the power supply device needs to be suspended, which is not conducive to stable operation.

[0003] To this end, the utility model patent with publication number CN213636055U discloses a hydrogen fuel cell power supply device, including a power supply main box, the top of the power supply main box is connected to an air inlet pipe, both sides of the top of the power supply main box are fixedly connected with support columns, the top of the support columns is fixedly connected with an adjustment box, the top of the adjustment box is fixedly connected with an adjustment motor box through a connecting block, the top of the inner wall of the adjustment motor box is fixedly connected with an adjustment motor through a motor seat, and the bottom end of the output shaft of the adjustment motor is fixedly connected with a rotating shaft through a coupling. The utility model relates to the field of fuel cell technology. The hydrogen fuel cell power supply device, through the joint arrangement of a rotating block, a stabilizing plate, a primary filter tube and a filter membrane, enables the hydrogen fuel cell to be replaced in time when the air filter is dirty during operation, thereby avoiding the inconvenience of electricity consumption caused by disassembly, cleaning and installation of the filter, and improving the comfort level of device operation.

[0004] In actual use, we found that when the above-mentioned device is in use, each time the filter part is replaced, the staff needs to participate in the operation, which is obviously more troublesome. In addition, each time the filter part is replaced, the staff needs to clean the filter part, which undoubtedly increases the workload of the staff. Therefore, how to solve this problem is what we need to consider. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings existing in the prior art and to propose a hydrogen fuel cell power supply device. During the use of the device, the filter part can be automatically replaced when blockage occurs, without the need for manual replacement by staff. In the process of replacement, the device can also automatically clean itself to ensure the continuous use of the filter part.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A hydrogen fuel cell power supply device comprises a power supply box body, a pressure relief pipe is installed on the left side of the power supply box body; an air inlet mechanism, the air inlet mechanism comprises a fan installed on the right side of the power supply box body, a cleaning box is fixedly connected to the lower end of the power supply box body, two cylinders are symmetrically fixedly connected to the inner top of the cleaning box, the air outlet end of the fan extends to the inside of the power supply box body, the air inlet end of the fan is connected to an air inlet pipe, the other end of the air inlet pipe is connected to two branch pipes, the other ends of the two branch pipes extend to the top of the two cylinders respectively; the left side of the inner top space of the cleaning box is connected to the outside world through a liquid inlet, and the inner bottom space of the cleaning box is connected to the outside world through a liquid discharge port, and a manual valve is installed in the liquid discharge port; two filtering mechanisms, the two filtering mechanisms are respectively located inside the two cylinders; an alarm mechanism, the alarm mechanism is located on the left side of the power supply box body.

[0007] Preferably, the filtering mechanism includes a mesh plate fixedly connected to the cylinder, a piston ring that can slide up and down is provided in the cylinder, a filter is fixedly connected to the inner side of the piston ring, the filter and the mesh plate are elastically connected by a second spring, and a plurality of liquid openings are opened on the side wall of the inner bottom space of the cylinder.

[0008] Preferably, a first solenoid valve is installed in each of the two branch pipes, the first solenoid valve located on the left side is a normally open solenoid valve, and the first solenoid valve located on the right side is a normally closed solenoid valve.

[0009] Preferably, a first rectangular box is fixedly connected to the left side of the power supply box body, electromagnets are installed on the left and right inner walls of the first rectangular box, a conductive piston is arranged in the power supply box body, and the two electromagnets cooperate with the conductive piston.

[0010] Preferably, power connection blocks are embedded in the top and the bottom of the left side space of the power supply box body, and the two power connection blocks cooperate with the two first solenoid valves.

[0011] Preferably, the upper ends of the two piston rings are fixedly connected with conductive columns, the upper end of each conductive column passes through the corresponding mesh plate, and a first touch delay switch is installed on the inner top of each cylinder, the first touch delay switch on the left side is electrically connected to the electromagnet on the left side, and the first touch delay switch on the right side is electrically connected to the electromagnet on the right side.

[0012] Preferably, the alarm mechanism includes a piston cylinder fixedly connected to the lower end of the first rectangular box, the left space of the first rectangular box is connected to the outside world through a vent, the right space of the first rectangular box is connected to the outside world through a first one-way tube, and the right space of the first rectangular box is connected to the top space of the piston cylinder through a second one-way tube.

[0013] Preferably, a piston block which can slide up and down is provided in the piston cylinder, the upper end of the piston block is elastically connected to the inner top of the piston cylinder through a first spring, one-way valves are installed in the first one-way tube and the second one-way tube, and a touch alarm component is installed at the inner bottom of the piston cylinder.

[0014] Preferably, the touch alarm component is composed of an alarm and a second touch delay switch, the top space of the piston cylinder is connected to the outside through an exhaust port, a second solenoid valve is installed in the exhaust port, and the second touch delay switch is electrically connected to the second solenoid valve and the alarm.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. Two filters are provided for alternating use. Through the reciprocating on and off of the normally open solenoid valve and the normally closed solenoid valve, the filter can be automatically replaced when it is blocked. In this way, the staff does not need to manually replace the filter, which improves the degree of automation of the replacement part.

[0016] 2. A water body is provided. During each filter replacement process, the dust collecting filter part will reciprocately contact with the water body under the elastic action of the second spring and its own inertia, and the water on it will be washed away, achieving the effect of automatic cleaning and facilitating the operation of the staff.

[0017] 3. After the two filters have worked alternately for several times, the alarm will sound, realizing the automatic alarm function. At this time, the water body needs to be replaced to avoid the situation where the water body is too dirty and affects the cleanliness. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a hydrogen fuel cell power supply device proposed by the present invention; Figure 2 is an enlarged schematic diagram of an alarm mechanism; Figure 3 This is an enlarged view of the cleaning box; Figure 4 for Figure 3 A magnified image of point A; Figure 5 It is a schematic diagram of the three-dimensional structure of the cylinder; Figure 6 It is a three-dimensional schematic diagram of the piston ring.

[0019] In the figure: 1 power supply box body, 2 fan, 3 cleaning box, 4 air inlet pipe, 5 liquid storage chamber, 6 liquid inlet, 7 liquid discharge port, 8 first rectangular box, 9 piston cylinder, 10 piston block, 11 touch alarm component, 12 second one-way pipe, 13 exhaust port, 14 first spring, 15 electromagnet, 16 first one-way pipe, 17 conductive piston, 18 power connection block, 19 vent, 20 branch pipe, 21 first solenoid valve, 22 cylinder, 23 liquid port, 24 piston ring, 25 filter screen, 26 second spring, 27 conductive column, 28 mesh plate, 29 first touch delay switch, 30 pressure relief pipe. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0022] Reference Figure 1-Figure 6 A hydrogen fuel cell power supply device includes a power supply box body 1, a pressure relief pipe 30 is installed on the left side of the power supply box body 1, and the use of the pressure relief pipe 30 can avoid the situation of excessive internal pressure; Among them, it also includes an air intake mechanism, which includes a fan 2 installed on the right side of the power supply box body 1, the gas flow direction of the fan 2 is from bottom to top, the lower end of the power supply box body 1 is fixedly connected to a cleaning box 3, the inner top of the cleaning box 3 is symmetrically fixedly connected to two cylinders 22, the air outlet end of the fan 2 extends to the inside of the power supply box body 1, the air inlet end of the fan 2 is connected to an air inlet pipe 4, the other end of the air inlet pipe 4 is connected to two branch pipes 20, and the other ends of the two branch pipes 20 extend to the inner tops of the two cylinders 22 respectively; The left side of the top space of the cleaning box 3 is connected to the outside world through the liquid inlet 6, and water can be added through the liquid inlet 6. The bottom space of the cleaning box 3 is connected to the outside world through the liquid discharge port 7. A manual valve is installed in the liquid discharge port 7. The waste liquid can be discharged to the outside world through the liquid discharge port 6. In order to achieve uninterrupted filtering, two filtering mechanisms are also included. The two filtering mechanisms are respectively located inside the two cylinders 22. The filtering mechanism includes a mesh plate 28 fixedly connected to the cylinder 22. The mesh plate 28 can be used to achieve support. A piston ring 24 that can slide up and down is arranged in the cylinder 22. A filter screen 25 is fixedly connected to the inner side of the piston ring 24. The filter screen 25 is elastically connected to the mesh plate 28 through a second spring 26. A plurality of liquid passages 23 are provided on the side wall of the inner bottom space of the cylinder 22. A first solenoid valve 21 is installed in each of the two branch pipes 20. The first solenoid valve 21 located on the left is a normally open solenoid valve, and the first solenoid valve 21 located on the right is a normally open solenoid valve. A normally closed solenoid valve, which will be closed when no power is supplied, and the valve body will be opened when power is supplied. A first rectangular box 8 is fixedly connected to the left side of the power supply box body 1, and electromagnets 15 are installed on the left and right inner walls of the first rectangular box 8. A conductive piston 17 is arranged in the power supply box body 1, and two electromagnets 15 cooperate with the conductive piston 17. A power connection block 18 is embedded in the top and the bottom of the left side space of the power supply box body 1. The two power connection blocks 18 cooperate with the two first solenoid valves 21, and also include an external power supply. The external power supply and the upper power connection block 18 are electrically connected through a wire, and the negative pole of the external power supply, the two first solenoid valves 21 and the lower power connection block 18 are electrically connected; Among them, the upper ends of the two piston rings 24 are fixedly connected with conductive columns 27, and the upper end of each conductive column 27 passes through the corresponding mesh plate 28. The inner top of each cylinder 22 is installed with a first touch delay switch 29. The first touch delay switch 29 on the left is electrically connected to the electromagnet 15 on the left, and the first touch delay switch 29 on the right is electrically connected to the electromagnet 15 on the right. When the first touch delay switch 29 is triggered, the electromagnet 15 will be powered on for a period of time and then turned off; Among them, in order to facilitate the staff to deal with the waste liquid in time, an alarm mechanism is also included. The alarm mechanism is located on the left side of the power supply box body 1. The alarm mechanism includes a piston cylinder 9 fixedly connected to the lower end of the first rectangular box 8. The left side space of the first rectangular box 8 is connected to the outside world through a vent 19, and the right side space of the first rectangular box 8 is connected to the outside world through a first one-way tube 16. The right side space of the first rectangular box 8 is connected to the top space of the piston cylinder 9 through a second one-way tube 12. A piston block 10 that can slide up and down is arranged in the piston cylinder 9. The upper end of the piston block 10 is connected to the inner top spring of the piston cylinder 9 through a first spring 14. The first one-way tube 16 and the second one-way tube 12 are both equipped with one-way valves. The one-way valve in the first one-way tube 16 flows from the outside to the inside of the first rectangular box 8 in one direction. The one-way valve in the second one-way tube 12 flows from the inside of the first rectangular box 8 in one direction to the top space of the piston cylinder 9. A touch alarm component 11 is installed at the inner bottom of the piston cylinder 9. The touch alarm component 11 consists of an alarm and a second touch delay switch. The top space of the piston cylinder 9 is connected to the outside through an exhaust port 13. A second solenoid valve is installed in the exhaust port 13. The second touch delay switch is electrically connected to the second solenoid valve and the alarm.

[0023] In the present invention, when in use, the cleaning box 3 is filled with clean water, and the height of the clean water is flush with the middle of the uppermost liquid passage 23. At this time, the fan 2 is started, and since the conductive piston 17 contacts the two power connection blocks 18, the first solenoid valve 21 on the left is closed, and the first solenoid valve 21 on the right is opened, and air enters from the right cylinder 22 part; As the air continues to enter, more dust will gather under the filter 25, resulting in a larger wind resistance of the filter 25, which will cause the filter 25 to move up continuously. When the amount of dust accumulation is large, the filter 25 moves up to the corresponding conductive column 27 to contact the corresponding first touch delay switch 29, and the electromagnet 15 on the right side will be energized for a period of time and automatically closed. During this period of time, the conductive piston 17 will be attracted to move right to contact the electromagnet 15 on the right side, and the circuits where the two first electromagnetic valves 21 are located will be disconnected. At this time, the first electromagnetic valve 21 on the left side is de-energized and turned on, and the first electromagnetic valve 21 on the right side is de-energized and closed, and air enters from the left side of the cylinder 22. Since the airflow disappears on the cylinder 22 on the right side, the piston ring 24 will move down quickly under the elastic action of the second spring 26. Due to the inertia, the maximum height of the piston ring 24 is lower than the initial height, so it will contact the water in the cleaning box 3. Under the inertia and the elastic action of the second spring 26, the piston ring 24 will shake up and down for a period of time and finally stop moving. During this period of time, the filter screen 25 on the right side will move relative to the water, and finally achieve self-cleaning of the filter screen 25; When the left filter 25 is partially covered with dust, the above process is repeated and the right filter 25 is replaced for dust removal, thereby achieving reciprocating replacement; It should be noted that the left and right electromagnets 15 will be energized alternately, causing the conductive piston 17 to move back and forth left and right. When the conductive piston 17 moves left, gas will be replenished from the outside through the first one-way tube 16. When the conductive piston 17 moves right, gas will be pressed into the top space of the piston cylinder 9 through the second one-way tube 12, pushing the piston block 10 to move continuously downward. After the conductive piston 17 moves left and right for a fixed number of times, the piston block 10 will move downward to contact the touch alarm component 11, so that the second solenoid valve and the alarm are energized, and the alarm will sound to remind the staff to make the water in the cleaning box 3 smoother. That is, after the two filters 25 have worked alternately for many times, the alarm will sound. At this time, the water needs to be replaced to avoid the situation where the water is too dirty and affects the cleanliness.

[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hydrogen fuel cell power supply device, characterized in that: include: A power supply box body (1), wherein a pressure relief pipe (30) is installed on the left side of the power supply box body (1); An air intake mechanism, the air intake mechanism comprising a fan (2) installed on the right side of a power supply box body (1), the lower end of the power supply box body (1) being fixedly connected to a cleaning box (3), the inner top of the cleaning box (3) being symmetrically fixedly connected to two cylinders (22), the air outlet end of the fan (2) extending into the interior of the power supply box body (1), the air inlet end of the fan (2) being connected to an air inlet pipe (4), the other end of the air inlet pipe (4) being connected to two branch pipes (20), the other ends of the two branch pipes (20) respectively extending to the inner tops of the two cylinders (22); The left side of the inner top space of the cleaning box (3) is connected to the outside world through a liquid inlet (6), and the inner bottom space of the cleaning box (3) is connected to the outside world through a liquid discharge port (7), and a manual valve is installed in the liquid discharge port (7); Two filtering mechanisms, the two filtering mechanisms being located inside the two cylinders (22) respectively; An alarm mechanism is located on the left side of the power supply box body (1).

2. A hydrogen fuel cell power supply device according to claim 1, characterized in that: The filtering mechanism comprises a mesh plate (28) fixedly connected to a cylinder (22); a piston ring (24) slidable up and down is arranged in the cylinder (22); a filter screen (25) is fixedly connected to the inner side of the piston ring (24); the filter screen (25) is elastically connected to the mesh plate (28) via a second spring (26); and a plurality of liquid passage openings (23) are provided on the side wall of the inner bottom space of the cylinder (22).

3. A hydrogen fuel cell power supply device according to claim 2, characterized in that: A first solenoid valve (21) is installed in each of the two branch pipes (20); the first solenoid valve (21) located on the left side is a normally open solenoid valve, and the first solenoid valve (21) located on the right side is a normally closed solenoid valve.

4. A hydrogen fuel cell power supply device according to claim 2, characterized in that: A first rectangular box (8) is fixedly connected to the left side of the power supply box body (1), and electromagnets (15) are installed on the left and right inner walls of the first rectangular box (8). A conductive piston (17) is arranged in the power supply box body (1), and the two electromagnets (15) cooperate with the conductive piston (17).

5. A hydrogen fuel cell power supply device according to claim 3, characterized in that: Power connection blocks (18) are embedded in the top and bottom of the left side space of the power supply box body (1), and the two power connection blocks (18) cooperate with the two first solenoid valves (21).

6. A hydrogen fuel cell power supply device according to claim 4, characterized in that: The upper ends of the two piston rings (24) are fixedly connected to a conductive column (27), and the upper end of each conductive column (27) passes through the corresponding mesh plate (28). A first touch delay switch (29) is installed on the inner top of each cylinder (22), and the first touch delay switch (29) located on the left side is electrically connected to the electromagnet (15) on the left side, and the first touch delay switch (29) located on the right side is electrically connected to the electromagnet (15) on the right side.

7. A hydrogen fuel cell power supply device according to claim 4, characterized in that: The alarm mechanism comprises a piston cylinder (9) fixedly connected to the lower end of a first rectangular box (8); the left side space of the first rectangular box (8) is connected to the outside through a vent (19); the right side space of the first rectangular box (8) is connected to the outside through a first one-way tube (16); and the right side space of the first rectangular box (8) is connected to the top space of the piston cylinder (9) through a second one-way tube (12).

8. A hydrogen fuel cell power supply device according to claim 7, characterized in that: A piston block (10) is arranged in the piston cylinder (9) and is slidable up and down. The upper end of the piston block (10) is elastically connected to the inner top of the piston cylinder (9) via a first spring (14). Both the first one-way tube (16) and the second one-way tube (12) are provided with one-way valves. A touch alarm component (11) is installed at the inner bottom of the piston cylinder (9).

9. A hydrogen fuel cell power supply device according to claim 8, characterized in that: The touch alarm component (11) is composed of an alarm and a second touch delay switch. The top space of the piston cylinder (9) is connected to the outside through an exhaust port (13). A second solenoid valve is installed in the exhaust port (13). The second touch delay switch is electrically connected to the second solenoid valve and the alarm.

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