A hydrogen fuel cell powered device

Abstract

This invention discloses a hydrogen fuel cell power supply device, including a power supply box with a pressure relief pipe installed on the left side; an air inlet mechanism including a fan installed on the right side of the power supply box; a cleaning box fixedly connected to the lower end of the power supply box; two cylindrical bodies symmetrically fixedly connected to the inner top of the cleaning box; the air outlet of the fan extending into the interior of the power supply box; the air inlet of the fan connected to an air inlet pipe; the other end of the air inlet pipe connected to two branch pipes; and the other ends of the two branch pipes extending into the top of the two cylindrical bodies respectively. During use, the device automatically replaces the filter when it becomes clogged, eliminating the need for manual replacement. Furthermore, the filter automatically cleans itself during the replacement process, ensuring continuous usability of the filter.

Description

Technical Field

[0001] This invention relates to the field of hydrogen fuel cells, and more particularly to a hydrogen fuel cell power supply device. Background Technology

[0002] A fuel cell is a chemical device that directly converts the chemical energy of fuel into electrical energy; it is also known as an electrochemical generator. Hydrogen fuel cells are a type of fuel cell. Traditional hydrogen fuel cell power supply devices need to draw in air and stored hydrogen when in use. The air must be filtered before it is drawn in. Traditional filters are prone to getting dirty after long-term use, and the process of replacing the filters is very cumbersome and time-consuming. Once the filters need to be replaced, the operation of the power supply device needs to be interrupted, which is not conducive to stable operation.

[0003] To address this, utility model patent CN213636055U discloses a hydrogen fuel cell power supply device, including a main power supply box. An air inlet pipe is connected to the top of the main power supply box. Support columns are fixedly connected to both sides of the top of the main power supply box. An adjustment box is fixedly connected to the top of the support columns. An adjustment motor box is fixedly connected to the top of the adjustment box via a connecting block. An adjustment motor is fixedly connected to the top of the inner wall of the adjustment motor box via a motor base. A rotating shaft is fixedly connected to the bottom of the output shaft of the adjustment motor via a coupling. This utility model relates to the field of fuel cell technology. This hydrogen fuel cell power supply device, through the combined arrangement of a rotating block, a stabilizing plate, a primary filter pipe, and a filter membrane, allows for timely replacement of the air filter when the hydrogen fuel cell encounters a problem of dirt buildup. This avoids the inconvenience of disassembling, cleaning, and installing the filter, thus improving the smooth operation of the device.

[0004] In practical use, we found that the above-mentioned device requires staff to operate it every time the filter is replaced, which is obviously quite troublesome. In addition, the filter needs to be cleaned every time it is replaced, which undoubtedly increases the workload of the staff. Therefore, we need to consider how to solve this problem. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a hydrogen fuel cell power supply device. During use, the filter section can be automatically replaced when it becomes clogged, eliminating the need for manual replacement. Furthermore, the filter section can automatically clean itself during the replacement process, ensuring its continuous usability.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A hydrogen fuel cell power supply device includes a power supply box, with a pressure relief pipe installed on the left side of the power supply box; an air inlet mechanism including a fan installed on the right side of the power supply box; a cleaning box fixedly connected to the lower end of the power supply box; two cylindrical bodies symmetrically fixedly connected to the inner top of the cleaning box; the air outlet of the fan extending into the interior of the power supply box; the air inlet of the fan connected to an air inlet pipe; the other end of the air inlet pipe connected to two branch pipes; the other ends of the two branch pipes extending into the inner top of the two cylindrical bodies respectively; the left side of the inner top space of the cleaning box communicating with the outside through a liquid inlet; the inner bottom space of the cleaning box communicating with the outside through a liquid outlet; a manual valve installed in the liquid outlet; two filtration mechanisms located inside the two cylindrical bodies respectively; and an alarm mechanism located on the left side of the power supply box.

[0008] Preferably, the filtration mechanism includes a mesh plate fixedly connected to the cylinder body, a piston ring that can slide up and down is provided in the cylinder body, a filter screen is fixedly connected to the inner side of the piston ring, the filter screen and the mesh plate are elastically connected by a second spring, and multiple liquid inlets are opened on the inner bottom space side wall of the cylinder body.

[0009] Preferably, a first solenoid valve is installed in both branches, with the first solenoid valve on the left being a normally open type and the first solenoid valve on the right being a normally closed type.

[0010] Preferably, a first rectangular box is fixedly connected to the left side of the power supply box, and electromagnets are installed on the inner walls of both sides of the first rectangular box. A conductive piston is provided inside the power supply box, and both electromagnets cooperate with the conductive piston.

[0011] Preferably, the top and bottom of the left side space of the power supply box are each provided with a power receiving block, and the two power receiving blocks cooperate with the two first solenoid valves.

[0012] Preferably, a conductive post is fixedly connected to the upper end of each of the two piston rings, and the upper end of each conductive post passes through a corresponding mesh plate. A first touch delay switch is installed on the inner top of each cylinder. The first touch delay switch on the left is electrically connected to the electromagnet on the left, and the first touch delay switch on the right is electrically connected to the electromagnet on the right.

[0013] Preferably, the alarm mechanism includes a piston cylinder fixedly connected to the lower end of a first rectangular box. The left side space of the first rectangular box is connected to the outside through a vent, the right side space of the first rectangular box is connected to the outside through a first one-way pipe, and the right side space of the first rectangular box is connected to the top space of the piston cylinder through a second one-way pipe.

[0014] Preferably, a piston block that can slide up and down is provided inside 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, a one-way valve is installed in both the first one-way tube and the second one-way tube, and a touch alarm component is installed in the inner bottom of the piston cylinder.

[0015] Preferably, the touch alarm assembly consists 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. The second touch delay switch is electrically connected to the second solenoid valve and the alarm.

[0016] Compared with the prior art, the beneficial effects of this invention are as follows:

[0017] 1. It is equipped with two alternating filters. By using normally open and normally closed solenoid valves to switch on and off, the filters can be automatically replaced when they become clogged. This eliminates the need for manual filter replacement and improves the automation of the replacement process.

[0018] 2. A water body is provided. During each filter replacement, the dust-collecting filter part will repeatedly contact the water body due to the elasticity of the second spring and its own inertia, washing away the water and achieving an automatic cleaning effect, which facilitates the operation of the staff.

[0019] 3. After the two filters work alternately multiple times, the alarm will sound, realizing the automatic alarm function. At this time, the water needs to be replaced to avoid the water becoming too dirty and affecting the cleanliness. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a hydrogen fuel cell power supply device proposed in this invention;

[0021] Figure 2 This is an enlarged schematic diagram of the alarm mechanism;

[0022] Figure 3 This is a magnified view of the cleaning box area;

[0023] Figure 4 for Figure 3 Enlarged view of point A;

[0024] Figure 5 This is a schematic diagram of the three-dimensional structure of the cylinder;

[0025] Figure 6 This is a three-dimensional schematic diagram of a piston ring.

[0026] In the diagram: 1 Power supply box, 2 Fan, 3 Cleaning box, 4 Air inlet pipe, 5 Liquid storage chamber, 6 Liquid inlet, 7 Liquid outlet, 8 First rectangular box, 9 Piston cylinder, 10 Piston block, 11 Touch alarm component, 12 Second one-way pipe, 13 Exhaust outlet, 14 First spring, 15 Electromagnet, 16 First one-way pipe, 17 Conductive piston, 18 Connecting block, 19 Ventilation opening, 20 Branch pipe, 21 First solenoid valve, 22 Cylinder, 23 Liquid inlet, 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 Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0028] 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.

[0029] Reference Figures 1-6 A hydrogen fuel cell power supply device includes a power supply box 1, and a pressure relief pipe 30 is installed on the left side of the power supply box 1. The use of the pressure relief pipe 30 can prevent the internal pressure from being too high.

[0030] It also includes an air intake mechanism, which includes a fan 2 installed on the right side of the power supply box 1. The air flow of the fan 2 is from bottom to top. A cleaning box 3 is fixedly connected to the lower end of the power supply box 1. Two cylinders 22 are symmetrically fixedly connected to the top of the inner part of the cleaning box 3. The air outlet of the fan 2 extends into the interior of the power supply box 1. The air inlet 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. The other ends of the two branch pipes 20 extend to the top of the inner part of the two cylinders 22 respectively.

[0031] The top inner space of the cleaning box 3 is connected to the outside through the liquid inlet 6 on the left side, through which water can be added. The bottom inner space of the cleaning box 3 is connected to the outside through the drain outlet 7. A manual valve is installed in the drain outlet 7, through which waste liquid can be discharged to the outside.

[0032] To achieve uninterrupted filtration, two filtration mechanisms are included, each located inside one of the two cylinders 22. Each filtration mechanism includes a mesh plate 28 fixedly connected inside the cylinder 22, providing support. A piston ring 24, capable of sliding up and down, is installed inside the cylinder 22. A filter screen 25 is fixedly connected to the inner side of the piston ring 24, and the filter screen 25 is elastically connected to the mesh plate 28 via a second spring 26. Multiple liquid inlets 23 are provided on the inner bottom sidewall of the cylinder 22. A first solenoid valve 21 is installed in each of the two branch pipes 20. The first solenoid valve 21 on the left is a normally open type, and the first solenoid valve 21 on the right is... The normally closed solenoid valve closes when not energized and opens when energized. A first rectangular box 8 is fixedly connected to the left side of the power supply box 1. Electromagnets 15 are installed on the inner walls of both sides of the first rectangular box 8. A conductive piston 17 is provided inside the power supply box 1. Both electromagnets 15 cooperate with the conductive piston 17. A grounding block 18 is embedded in the top and bottom of the left side space of the power supply box 1. The two grounding blocks 18 cooperate with the two first solenoid valves 21. An external power supply is also included. The external power supply and the grounding block 18 above are electrically connected by wires. The negative terminal of the external power supply, the two first solenoid valves 21 and the grounding block 18 below are electrically connected.

[0033] The upper ends of the two piston rings 24 are fixedly connected to conductive posts 27, and the upper end of each conductive post 27 passes through the corresponding mesh plate 28. The inner top of each cylinder 22 is equipped 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, it will energize the electromagnet 15 for a period of time and then turn it off.

[0034] To facilitate timely treatment of waste liquid by staff, an alarm mechanism is also included. The alarm mechanism is located on the left side of the power supply box 1 and includes a piston cylinder 9 fixedly connected to the lower end of the first rectangular box 8. The left side of the first rectangular box 8 is connected to the outside through a vent 19, and the right side of the first rectangular box 8 is connected to the outside through a first one-way pipe 16. The right side of the first rectangular box 8 is connected to the top space of the piston cylinder 9 through a second one-way pipe 12. A piston block 10 that can slide up and down is installed inside the piston cylinder 9. The upper end of the piston block 10 is connected to the inner top of the piston cylinder 9 by a first spring 14. The piston cylinder 9 is electrically connected to the outside through a vent 13. A one-way valve is installed in both the first one-way pipe 16 and the second one-way pipe 12. The flow direction of the one-way valve in the first one-way pipe 16 is one-way from the outside to the inside of the first rectangular box 8. The flow direction of the one-way valve in the second one-way pipe 12 is one-way from the inside of the first rectangular box 8 to the top space of the piston cylinder 9. A touch alarm component 11 is installed at the 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 a vent 13. A second solenoid valve is installed in the vent 13. The second touch delay switch is electrically connected to the second solenoid valve and the alarm.

[0035] In this invention, when in use, the cleaning box 3 is filled with clean water, and the height of the clean water is level with the middle of the liquid inlet 23 at the top. At this time, the fan 2 is started. Since the conductive piston 17 contacts the two electrical blocks 18, the first solenoid valve 21 on the left side is closed and the first solenoid valve 21 on the right side is opened, and air enters from the right cylinder 22.

[0036] As air continues to enter, a lot of dust will accumulate below the filter 25, resulting in greater air resistance for the filter 25. This will cause the filter 25 to move upward continuously. When the amount of dust accumulated is large, the filter 25 moves upward until the corresponding conductive post 27 contacts the corresponding first touch delay switch 29. At this time, the electromagnet 15 on the right will be energized for a period of time and then automatically shut off. During this time, the conductive piston 17 will be attracted to move to the right and contact the electromagnet 15 on the right, thus disconnecting the circuit of the two first solenoid valves 21. At this time, the first solenoid valve 21 on the left is de-energized and conducts, while the first solenoid valve 21 on the right is de-energized and closes, allowing air to enter from the left cylinder 22.

[0037] As the airflow disappears from the right cylinder 22, the piston ring 24 will move down rapidly under the elastic action of the second spring 26. Due to inertia, the maximum height of the piston ring 24 is lower than the initial height, so it will come into contact with the water in the cleaning box 3. Under the action of 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 eventually stop moving. During this time, the filter screen 25 on the right side will move relative to the water, thus achieving the self-cleaning of the filter screen 25.

[0038] When a lot of dust accumulates on the left filter screen 25, the above process will be repeated, and the right filter screen 25 will be used to remove the dust, thus achieving repeated replacement.

[0039] It is important to note that the two electromagnets 15 are alternately energized, causing the conductive piston 17 to move back and forth. When the conductive piston 17 moves to the left, it replenishes gas from the outside through the first one-way tube 16. When the conductive piston 17 moves to the right, it forces gas into the top space of the piston cylinder 9 through the second one-way tube 12, pushing the piston block 10 downward. After the conductive piston 17 moves left and right a fixed number of times, the piston block 10 will move down to contact the touch alarm component 11, energizing the second solenoid valve and the alarm. The alarm will then sound, reminding staff to clean the water in the cleaning box 3. This means that after the two filters 25 have worked alternately several times, the alarm will sound. At this point, the water needs to be replaced to prevent the water from becoming too dirty and affecting its cleanliness.

[0040] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0041] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A hydrogen fuel cell power supply device, characterized in that, include: Power supply box (1), with a pressure relief pipe (30) installed on the left side of the power supply box (1); An air intake mechanism is provided, comprising a fan (2) installed on the right side of the power supply box (1), a cleaning box (3) fixedly connected to the lower end of the power supply box (1), two cylinders (22) symmetrically fixedly connected to the inner top of the cleaning box (3), the air outlet of the fan (2) extending into the interior of the power supply box (1), the air inlet 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) extending to the inner top of the two cylinders (22) respectively; The top space inside the cleaning box (3) is connected to the outside through the liquid inlet (6) on the left side, and the bottom space inside the cleaning box (3) is connected to the outside through the liquid outlet (7). A manual valve is installed inside the liquid outlet (7). Two filtration mechanisms are located inside two cylinders (22), respectively; An alarm mechanism is located on the left side of the power supply box (1); The filtration mechanism includes a mesh plate (28) fixedly connected inside the cylinder (22), a piston ring (24) that can slide up and down is provided inside the cylinder (22), a filter screen (25) is fixedly connected to the inner side of the piston ring (24), the filter screen (25) and the mesh plate (28) are elastically connected by a second spring (26), and multiple liquid inlets (23) are opened on the inner bottom space side wall of the cylinder (22). Both of the branch pipes (20) are equipped with a first solenoid valve (21). The first solenoid valve (21) on the left is a normally open solenoid valve, and the first solenoid valve (21) on the right is a normally closed solenoid valve. The left side of the power supply box (1) is fixedly connected to a first rectangular box (8). Electromagnets (15) are installed on the inner walls of the left and right sides of the first rectangular box (8). A conductive piston (17) is provided inside the power supply box (1). Both electromagnets (15) cooperate with the conductive piston (17). The top and bottom of the left side space of the power supply box (1) are both equipped with electrical connection blocks (18), and the two electrical connection blocks (18) cooperate with the two first solenoid valves (21). 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 through a vent (19), the right side space of the first rectangular box (8) is connected to the outside through a first one-way pipe (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 pipe (12).

2. The hydrogen fuel cell power supply device according to claim 1, characterized in that, The upper ends of the two piston rings (24) are fixedly connected to conductive posts (27), and the upper end of each conductive post (27) passes through the corresponding mesh plate (28). The inner top of each cylinder (22) is equipped with a first touch delay switch (29). The first touch delay switch (29) on the left side is electrically connected to the electromagnet (15) on the left side, and the first touch delay switch (29) on the right side is electrically connected to the electromagnet (15) on the right side.

3. A hydrogen fuel cell power supply device according to claim 1, characterized in that, The piston cylinder (9) is provided with a piston block (10) that can slide up and down. The upper end of the piston block (10) is elastically connected to the inner top of the piston cylinder (9) through a first spring (14). One-way valves are installed in both the first one-way tube (16) and the second one-way tube (12). A touch alarm component (11) is installed at the inner bottom of the piston cylinder (9).

4. A hydrogen fuel cell power supply device according to claim 3, characterized in that, 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 the 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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