Hydrogen energy power supply convenient for dust prevention and heat dissipation

Abstract

The utility model discloses a hydrogen energy power supply convenient for dust prevention and heat dissipation. The hydrogen energy power supply comprises a mounting cavity which is vertically arranged and is provided with openings in the upper and lower parts; a dustproof window is fixedly arranged at the lower end of the mounting cavity, and a control module loading box is arranged at the upper end of the mounting cavity, so that a cavity of which only the lower end can be communicated with air is formed in the mounting cavity; an air-cooled fuel cell is arranged in the mounting cavity, and an air circulation channel of a cathode of the air-cooled fuel cell corresponds to an upper opening and a lower opening of the cavity; an exhaust cylinder is mounted on one side, facing the dustproof window, of the air-cooled fuel cell; an air circulation channel is formed between the exhaust cylinder and the mounting cavity, and the sum of the vertical height of the air-cooled fuel cell and the vertical height of the exhaust cylinder is smaller than the height of the mounting cavity; an air outlet is formed in the side surface of the lower end of the exhaust cylinder; and an exhaust fan matched with the air outlet in size is mounted on the air outlet. The dust-proof and heat-dissipation LED lamp has the advantages of being reasonable in structural design, capable of preventing dust and dissipating heat and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen fuel cells, in particular to a hydrogen power source which is convenient for dust prevention and heat dissipation. Background Art

[0002] Hydrogen energy is a clean, efficient, and renewable energy source with broad application prospects. Hydrogen energy fuel cells are power generation devices that directly convert the chemical energy of hydrogen and oxygen into electrical energy. At present, air-cooled fuel cells are commonly used in some emergency power supplies. Air-cooled fuel cells are different from water-cooled fuel cells because their cathodes are open, so that their cooling system and air supply system are coupled. The entire coupled system will only contain fan components that serve as both cooling and oxygen sources, reducing the parasitic consumption of auxiliary components such as air compressors and cooling water pumps of water-cooled fuel cells; greatly improving the utilization rate of hydrogen energy sources.

[0003] However, as a portable power supply device that provides electricity, hydrogen power sources are widely used in military, rescue, outdoor and other fields. During specific use, due to the harsh use environment, while considering the air supply of the air-cooled fuel cell, it is also necessary to consider the clogging of the cathode of the air-cooled fuel cell by dust, dust or sand, which leads to the overall performance degradation of the hydrogen power source and the uneven heat dissipation caused by the clogging. Based on this, the utility model provides a hydrogen power source that is easy to prevent dust and dissipate heat. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is: how to provide a hydrogen energy power source with a reasonable structural design that is both dustproof and heat-dissipating.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A hydrogen energy power source that is convenient for dust prevention and heat dissipation, comprising a vertically arranged installation cavity with openings at the top and bottom; a dustproof window is fixedly arranged at the lower end of the installation cavity, and a mesh-shaped through hole is arranged on the dustproof window; a control module loading box is arranged at the upper end of the installation cavity, and the size of the control module loading box matches the size of the opening at the upper end of the installation cavity; so that a cavity is formed in the installation cavity, and only the lower end can communicate with air;

[0007] An air-cooled fuel cell is arranged inside the installation cavity, and the air circulation channel of the cathode of the air-cooled fuel cell is arranged corresponding to the upper and lower openings of the installation cavity; an exhaust pipe is installed on the side of the air-cooled fuel cell facing the dustproof window, the opening size of the upper end of the exhaust pipe matches the size of the lower side of the air-cooled fuel cell, and the opening size of the upper end of the exhaust pipe is smaller than the opening size of the lower end of the installation cavity; an air circulation channel is formed between the exhaust pipe and the installation cavity, and the sum of the vertical heights of the air-cooled fuel cell and the exhaust pipe is smaller than the height of the installation cavity; the lower end of the exhaust pipe is closed and an air outlet is opened on the side of its lower end, an exhaust fan of a size matching the exhaust pipe is installed on the air outlet, and the lower end of the exhaust pipe is fixed to the installation cavity by bolts.

[0008] With the above structure, the air-cooled fuel cell starts to work, thereby driving the exhaust fan to start running. The exhaust fan exhausts the air in the exhaust duct, forming a negative pressure in the exhaust duct. In this way, the air in the installation cavity will rise upward with the pressure and enter the exhaust duct through the air circulation channel of the cathode of the air-cooled fuel cell. The process of the air in the installation cavity flowing through the fuel cell air circulation channel and entering the exhaust duct provides oxygen to the air-cooled fuel cell and takes away the heat during the operation of the fuel cell, thereby completing the heat dissipation. The air outside the installation cavity will enter the installation cavity through the dustproof window due to the pressure. In the process of the air at the lower end of the installation cavity rising upward under the action of pressure, impurities such as sand and dust trapped in the air will fall under the action of gravity. In this way, impurities such as sand and dust can be prevented from clogging the air circulation channel of the cathode of the fuel cell during use.

[0009] Furthermore, an exhaust port is provided through the side of the installation cavity, the exhaust port is provided at a position corresponding to the air outlet, and an exhaust duct is connected between the exhaust port and the air outlet, the diameter of the exhaust duct is larger than the diameter of the exhaust fan, and the exhaust fan is provided concentrically in the exhaust duct.

[0010] In this way, directly discharging the air from the outlet out of the installation cavity can avoid the conflict between the air discharged from the outlet and the cold air entering through the dustproof window, make the pressure difference inside the installation cavity more intuitive, and allow the newly entered air to quickly gather at the cathode to meet the needs of heat dissipation and oxygen.

[0011] For further optimization, a shutter with its opening set downward is installed on the air outlet, the cross section of the blades of the shutter is set in a fan shape and the central angle of the fan is 90 degrees.

[0012] In this way, during use, not only can air be discharged from the shutters conveniently, but the fan-shaped blades set at a central angle of 90 degrees form a dust baffle to prevent external wind and sand from entering the installation cavity from the exhaust port and blocking the exhaust port, thereby ensuring stable operation of exhaust and heat dissipation of the air-cooled fuel cell.

[0013] Furthermore, a hydrogen filling port is provided on one side in the width direction of the installation cavity, and a drain port is provided on the other side in the width direction of the installation cavity; the hydrogen filling port is connected to the hydrogen inlet of the air-cooled fuel cell through a hydrogen transmission pipeline, and the drain port is connected to the drain outlet of the air-cooled fuel cell through a drain pipeline, and an electromagnetic valve is also provided between the drain port and the drain outlet.

[0014] In this way, the solenoid valve can control the drainage according to time or pressure, which can prevent the fuel cell membrane electrode from losing water too quickly due to excessive drainage and affecting performance, or prevent the fuel cell from being flooded due to excessive drainage.

[0015] Furthermore, the control module loading box is provided with a power control module, the input end of the power control module is connected to the output end of the air-cooled fuel cell through a wire, and a power output interface is provided on the surface of the control module loading box, and the power output interface is connected to the output end of the power control module through a wire.

[0016] Furthermore, protective pads are provided on the corners of the installation cavity and the control module loading box.

[0017] In this way, the protective pads set on the corners can, on the one hand, protect the installation cavity and the control module loading box and extend their service life; on the other hand, the protective pads can make the loading cavity form a certain height difference with the ground, so that an air circulation gap is formed at the bottom, so that air can pass through the gap and enter the loading cavity from the dustproof window at the bottom.

[0018] Furthermore, the protection pad is made of rubber material.

[0019] In summary, the utility model has the advantages of reasonable structural design, dustproof and heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0021] Figure 2 It is a right side structural schematic diagram of the utility model.

[0022] Figure 3 It is a schematic diagram of the structure of the utility model when viewed from above.

[0023] Figure 4 for Figure 1Schematic diagram of the three-dimensional structure without the installation cavity.

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the exhaust duct.

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the blinds.

[0026] Reference numerals:

[0027] 1. Installation cavity, 11. Hydrogen filling port, 12. Drain port, 2. Air-cooled fuel cell, 3. Dustproof window, 4. Control module loading box, 41. Power output interface, 42. Protective pad, 5. Exhaust duct, 51. Air outlet, 6. Exhaust fan, 7. Shutter DETAILED DESCRIPTION

[0028] The utility model is further described in detail below in conjunction with the embodiments.

[0029] A hydrogen energy power source that is easy to prevent dust and dissipate heat, such as Figure 1 to Figure 6 As shown, it comprises a mounting cavity 1 which is arranged vertically and has openings at the top and the bottom; a dustproof window 3 is fixedly arranged at the lower end of the mounting cavity 1, and a mesh-shaped through hole is arranged on the dustproof window 3; a control module loading box 4 is arranged at the upper end of the mounting cavity 1, and the size of the control module loading box 4 matches the size of the opening at the upper end of the mounting cavity 1; so that a cavity is formed in the mounting cavity 1, and only the lower end can communicate with air;

[0030] An air-cooled fuel cell 2 is arranged inside the installation cavity, and the air circulation channel of the cathode of the air-cooled fuel cell 2 is arranged corresponding to the upper and lower openings of the installation cavity 1; an exhaust pipe 5 is installed on the side of the air-cooled fuel cell 2 facing the dustproof window 3, and the opening size of the upper end of the exhaust pipe 5 matches the size of the lower side of the air-cooled fuel cell, and the opening size of the upper end of the exhaust pipe 5 is smaller than the opening size of the lower end of the installation cavity 1; an air circulation channel is formed between the exhaust pipe 5 and the installation cavity, and the sum of the vertical heights of the air-cooled fuel cell 2 and the exhaust pipe 5 is smaller than the height of the installation cavity; the lower end of the exhaust pipe 5 is closed and an air outlet 51 is opened on the side of its lower end, and an exhaust fan 6 matching its size is installed on the air outlet 51,

[0031] The lower end of the exhaust cylinder 5 is fixed to the installation cavity 1 by bolts. A hydrogenation port 11 is provided on one side of the width direction of the installation cavity 1, and a drain port 12 is provided on the other side of the width direction of the installation cavity 1; the hydrogenation port 11 is connected to the hydrogen inlet of the air-cooled fuel cell 2 through a hydrogen delivery pipeline, and the drain port 12 is connected to the drain outlet of the air-cooled fuel cell 2 through a drain pipeline, and a solenoid valve is also provided between the drain port 12 and the drain outlet. The control module loading box 4 is provided with a power control module, and the input end of the power control module is connected to the output end of the air-cooled fuel cell 2 through a wire, and a power output interface 41 is provided on the surface of the control module loading box 4, and the power output interface 41 is connected to the output end of the power control module through a wire.

[0032] During implementation, the start switch is pressed, hydrogen enters the anode of the fuel cell from the hydrogenation pipeline, and the air-cooled fuel cell starts to work, thereby driving the exhaust fan to start running. The exhaust fan exhausts the air in the exhaust duct, so that a negative pressure is formed in the exhaust duct. In this way, the air in the installation cavity will rise upward with the pressure and enter the exhaust duct through the air flow channel of the cathode of the air-cooled fuel cell. The air in the installation cavity flows through the fuel cell air circulation channel and enters the exhaust duct. This process provides oxygen to the air-cooled fuel cell and takes away the heat during the operation of the fuel cell, thereby completing the heat dissipation. The air outside the installation cavity will enter the installation cavity through the dustproof window due to the pressure. In the process of the air at the lower end of the installation cavity climbing upward under the action of pressure, impurities such as sand and dust trapped in the air will fall under the action of gravity. In this way, impurities such as sand and dust can be prevented from blocking the air circulation channel of the cathode of the fuel cell during use. The fuel cell will generate water at the cathode during operation, and a solenoid valve is provided between the drainage outlet and the drainage outlet. A specific time or pressure can be set to drive the opening and closing of the solenoid valve, so that drainage can be completed while ensuring the wetting of the membrane electrode and avoiding flooding of the membrane electrode.

[0033] In order to further improve the dustproof effect during the specific implementation, a filter screen is attached to the inner wall of the dustproof window 3. In order to facilitate replacement or installation, the hydrogenation port 11 is provided with a quick-release interface, and the most common interface is a quick self-closing push-on connector.

[0034] like Figure 4As shown, in order to form a more obvious pressure difference and prevent the air discharged from the outlet from colliding with the cold air entering through the dustproof window, the newly entered air can be quickly gathered at the cathode to meet the needs of heat dissipation and oxygen; an exhaust port is arranged through the side of the installation cavity 1, and the position of the exhaust port corresponds to the position of the air outlet 51, and an exhaust duct is connected between the exhaust port and the air outlet 51, the diameter of the exhaust duct is larger than the diameter of the exhaust fan 6, and the exhaust fan 6 is arranged concentrically in the exhaust duct.

[0035] Specifically, Figure 1 and Figure 6 As shown, a shutter 7 with its opening downward is installed on the air outlet, and the cross section of the blades of the shutter 7 is arranged in a fan shape and the central angle of the fan shape is 90 degrees.

[0036] In this way, during use, not only can air be discharged from the shutters conveniently, but the fan-shaped blades set at a central angle of 90 degrees form a dust baffle to prevent external wind and sand from entering the installation cavity from the exhaust port and blocking the exhaust port, thereby ensuring stable operation of exhaust and heat dissipation of the air-cooled fuel cell.

[0037] like Figure 1 and Figure 2 As shown, protection pads 42 are provided on the corners of the installation cavity 1 and the control module loading box 4. The protection pads 42 are made of rubber material.

[0038] In this way, the protective pads set on the corners can, on the one hand, protect the installation cavity and the control module loading box and extend their service life; on the other hand, the protective pads can make the loading cavity form a certain height difference with the ground, so that an air circulation gap is formed at the bottom, so that air can pass through the gap and enter the loading cavity from the dustproof window at the bottom.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hydrogen energy power source that is easy to prevent dust and dissipate heat, characterized in that: The invention comprises an installation cavity (1) which is arranged vertically and has openings at the top and the bottom; a dustproof window (3) is fixedly arranged at the lower end of the installation cavity (1), and a mesh-shaped through hole is arranged on the dustproof window (3); a control module loading box (4) is arranged at the upper end of the installation cavity (1), and the size of the control module loading box (4) matches the size of the opening at the upper end of the installation cavity (1); so that a cavity is formed in the installation cavity (1) that can communicate with air only at the lower end; An air-cooled fuel cell (2) is arranged inside the installation cavity, and an air circulation channel of the cathode of the air-cooled fuel cell (2) is arranged corresponding to the upper and lower openings of the installation cavity (1); an exhaust pipe (5) is installed on the side of the air-cooled fuel cell (2) facing the dustproof window (3), the opening size of the upper end of the exhaust pipe (5) matches the size of the lower side of the air-cooled fuel cell, and the opening size of the upper end of the exhaust pipe (5) is smaller than the opening size of the lower end of the installation cavity (1); an air circulation channel is formed between the exhaust pipe (5) and the installation cavity, and the sum of the vertical heights of the air-cooled fuel cell (2) and the exhaust pipe (5) is smaller than the height of the installation cavity; the lower end of the exhaust pipe (5) is closed and an air outlet (51) is opened on the side of the lower end, and an exhaust fan (6) of a size matching the exhaust pipe (5) is installed on the air outlet (51), and the lower end of the exhaust pipe (5) is fixed to the installation cavity (1) by bolts.

2. The hydrogen energy power source for dustproof and heat dissipation as claimed in claim 1, characterized in that: An exhaust port is provided through the side surface of the installation cavity (1), the exhaust port is provided at a position corresponding to the air outlet (51), and an exhaust duct is connected between the exhaust port and the air outlet (51), the diameter of the exhaust duct is greater than the diameter of the exhaust fan (6), and the exhaust fan (6) is provided cocentrically in the exhaust duct.

3. The hydrogen energy power source for dustproof and heat dissipation as claimed in claim 2, characterized in that: A shutter (7) with its opening facing downward is installed on the air outlet, and the cross section of the blades of the shutter (7) is arranged in a fan shape, and the central angle of the fan shape is 90 degrees.

4. The hydrogen energy power source for dustproof and heat dissipation as claimed in claim 1, characterized in that: A hydrogenation port (11) is provided on one side in the width direction of the installation cavity (1), and a drainage port (12) is provided on the other side in the width direction of the installation cavity (1); the hydrogenation port (11) is connected to the hydrogen inlet of the air-cooled fuel cell (2) via a hydrogen transmission pipeline, and the drainage port (12) is connected to the drainage outlet of the air-cooled fuel cell (2) via a drainage pipeline, and a solenoid valve is also provided between the drainage port (12) and the drainage outlet.

5. The hydrogen energy power source for dustproof and heat dissipation as claimed in claim 1, characterized in that: The control module loading box (4) is provided with a power control module, the input end of the power control module is connected to the output end of the air-cooled fuel cell (2) via a wire, and a power output interface (41) is provided on the surface of the control module loading box (4), and the power output interface (41) is connected to the output end of the power control module via a wire.

6. The hydrogen energy power source for dustproof and heat dissipation as claimed in claim 1, characterized in that: Protection pads (42) are provided on the corners of the installation cavity (1) and the control module loading box (4).

7. The hydrogen energy power source for dustproof and heat dissipation as claimed in claim 6, characterized in that: The protection pad (42) is made of rubber material.

Images