Fuel cell standby power supply and system

Abstract

The utility model discloses a fuel cell stand-by power supply and system, the fuel cell stand-by power supply comprises a box body in which a containing cavity is defined, and the box body is provided with an air inlet and an air outlet; the supporting plate is arranged in the containing cavity and divides the containing cavity into a first cavity body and a second cavity body; the hydrogen storage device is arranged in the first cavity; the fuel cell is arranged in the second cavity, and the fuel cell is connected with the hydrogen storage device; the water tank is arranged at the bottom of the fuel cell and is communicated with the fuel cell; the atomizer is arranged in the second cavity and communicates with the water tank; and the fan is arranged on the shell of the fuel cell and is positioned between the hydrogen storage device and the fuel cell. The water tank and the atomizer are arranged at the bottom of the fuel cell, so that water generated in the reaction process of the fuel cell can be fully utilized, the air inlet humidity of the air side of the fuel cell is improved, and the performance and the stability of the fuel cell are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of power supply manufacturing technology, and more specifically, to a fuel cell backup power supply and system. Background Technology

[0002] In hydrogen fuel cell technology, whether it is an air-cooled fuel cell system or a water-cooled fuel cell system, high requirements are placed on the simplification and lightweighting of the system structure, the reduction of production and maintenance costs, as well as the requirements for range and environmental protection.

[0003] In proton exchange membrane fuel cells, the proton exchange membrane needs a certain level of humidity to maintain good proton conductivity. Excessively low humidity can hinder proton transport and affect the membrane's performance. In particular, under low current density conditions, the fuel cell generates less heat from the electrochemical reaction, resulting in a lower stack temperature, which further exacerbates the membrane drying problem. Utility Model Content

[0004] One objective of this invention is to provide a new technical solution for an emergency power supply and system for fuel cells, which can at least solve the problem of reduced performance of fuel cells due to water shortage.

[0005] A first aspect of this utility model provides a fuel cell backup power supply comprising: a housing, the housing defining a receiving cavity, the housing having an air inlet and an air outlet; a support plate disposed within the receiving cavity, the support plate being arranged along a first direction and dividing the receiving cavity into a first cavity and a second cavity; a hydrogen storage device disposed within the first cavity, the air outlet being disposed on the side of the housing where the hydrogen storage device is disposed; and a fuel cell disposed within the second cavity, the fuel cell being connected to the hydrogen storage device via a pipeline, the air inlet being located in the second cavity. The housing includes one side of the fuel cell; a water tank located at the bottom of the fuel cell and connected to it to collect water generated after the fuel cell reaction; an atomizer located in the second chamber and connected to the water tank, used to atomize the water in the water tank; and a fan located on the outer casing of the fuel cell and between the hydrogen storage device and the fuel cell to direct the heat generated by the fuel cell into the hydrogen storage device and to direct the water mist generated by the atomizer into the fuel cell along with the air.

[0006] Optionally, a drain valve is provided between the fuel cell and the water tank, and a filter device is provided between the drain valve and the water tank.

[0007] Optionally, the housing is equipped with a humidity sensor to detect ambient humidity. When the humidity sensor detects that the ambient humidity is lower than the operating humidity threshold of the fuel cell, the atomizer is turned on.

[0008] Optionally, the housing is provided with a drain hole at the bottom of the hydrogen storage device to drain the water condensed in the first cavity.

[0009] Optionally, the air outlet and the air inlet are located on opposite sides of the housing, and the fan is provided between the air outlet and the air inlet; or, the air outlet and the air inlet are located on adjacent sides of the housing, and an air guide channel is formed between the air outlet, the fan and the air inlet.

[0010] Optionally, the fuel cell backup power supply further includes: a first partition, which is disposed on the side of the support plate facing the second cavity and arranged along a second direction perpendicular to the first direction, to divide the second cavity into a first chamber and a second chamber, wherein the fuel cell is disposed in the first chamber; and electrical components, which are disposed in the second chamber, wherein the hydrogen storage device, the fuel cell, and the electrical components are respectively located in the first cavity, the first chamber, and the second chamber to balance the overall weight of the fuel cell backup power supply.

[0011] Optionally, the backup power supply for the fuel cell further includes: a second partition, which is disposed in the first cavity and located between the hydrogen storage device and the support plate, the second partition being arranged parallel to the support plate, and defining a third chamber between the second partition and the support plate; and a rechargeable battery disposed in the third chamber.

[0012] Optionally, the electrical components include a controller, a DC-DC converter, and a relay. The controller, the DC-DC converter, and the relay are all located in the second chamber. The DC-DC converter is connected to the support plate. The relay and the controller are sequentially mounted on the first partition 41 along the first direction, and the controller is located away from the support plate relative to the DC-DC converter.

[0013] Optionally, the top of the housing is provided with a handle, which is located at the center of gravity of the fuel cell backup power supply.

[0014] Optionally, the top of the enclosure is provided with a display screen, a power supply device, a power button, and a start button, and the positions of the display screen, the power supply device, the power button, and the start button on the enclosure correspond to the positions of the second cavity.

[0015] A second aspect of this utility model provides a fuel cell backup power system, including the fuel cell backup power supply described in the above embodiments.

[0016] This invention relates to a fuel cell backup power supply. A water tank and an atomizer are installed at the bottom of the fuel cell. The water tank recovers water generated during the fuel cell reaction, and the atomizer atomizes the water in the tank. The resulting water mist, along with air, is drawn into the fuel cell by a fan, thereby improving the proton transfer performance of the proton exchange membrane and ensuring the fuel cell's power generation performance. This maximizes the utilization of water generated during the fuel cell reaction, increases the humidity of the air intake on the fuel cell's air side, and effectively improves the fuel cell's performance and stability. Simultaneously, the fan can also direct the heat generated by the fuel cell into the hydrogen storage device, achieving both oxygen supply and cooling for the fuel cell and improving the hydrogen release efficiency of the hydrogen storage device.

[0017] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0019] Figure 1 This is a schematic diagram of a fuel cell backup power supply according to an embodiment of the present utility model;

[0020] Figure 2 This is another structural schematic diagram of a fuel cell backup power supply according to an embodiment of the present utility model;

[0021] Figure 3 This is yet another structural schematic diagram of a fuel cell backup power supply according to an embodiment of the present utility model;

[0022] Figure 4 This is an internal structural diagram of a fuel cell backup power supply according to an embodiment of the present utility model;

[0023] Figure label:

[0024] 100 backup power units for fuel cells;

[0025] 10 housing; 11 air inlet; 12 air outlet; 13 first cavity; 14 first chamber; 15 second chamber; 16 third chamber;

[0026] Support plate 20;

[0027] Hydrogen storage device 31; fuel cell 32; water tank 33; atomizer 34; fixture 35; pressure reducing valve 36;

[0028] First partition 41; Second partition 42;

[0029] Controller 51; DC-DC converter 52; relay 53; rechargeable battery 54;

[0030] 61. Handle; 62. Display screen; 63. Power supply device; 64. Power button; 65. Start button. Detailed Implementation

[0031] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0032] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0033] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0034] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0036] In the specification and claims of this utility model, the terms "first" and "second" may explicitly or implicitly include one or more of those features. In the description of this utility model, unless otherwise stated, "multiple" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0037] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and other terms indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] The fuel cell backup power supply 100 according to an embodiment of the present invention is described in detail below with reference to the accompanying drawings.

[0040] like Figures 1 to 4 As shown, the fuel cell backup power supply 100 according to an embodiment of the present invention includes a housing 10, a support plate 20, a hydrogen storage device 31, a fuel cell 32, a water tank 33, an atomizer 34, and a fan.

[0041] Specifically, the housing 10 defines a receiving cavity, and the housing 10 is provided with an air inlet 11 and an air outlet 12. A support plate 20 is disposed within the receiving cavity, arranged along a first direction, and divides the receiving cavity into a first cavity 13 and a second cavity. A hydrogen storage device 31 is disposed within the first cavity 13, and the air outlet 12 is located on the side of the housing 10 where the hydrogen storage device 31 is disposed. A fuel cell 32 is disposed within the second cavity, and the fuel cell 32 is connected to the hydrogen storage device 31 via piping. The air inlet 11 is located on the side of the housing 10 where the fuel cell 32 is disposed. A water tank 33 is disposed at the bottom of the fuel cell 32 and is connected to the fuel cell 32 to collect the water generated after the reaction of the fuel cell 32. An atomizer 34 is disposed within the second cavity, and the atomizer 34 is connected to the water tank 33. The atomizer 34 is used to atomize the water in the water tank 33. The fan is mounted on the outer casing of the fuel cell 32 and is located between the hydrogen storage device 31 and the fuel cell 32. The fan is used to transfer the heat generated by the fuel cell 32 into the hydrogen storage device 31 and to draw the water mist and air generated by the atomizer 34 into the interior of the fuel cell 32 together.

[0042] In other words, see Figures 1 to 4 According to an embodiment of this utility model, the fuel cell backup power supply 100 mainly consists of a housing 10, a support plate 20, a hydrogen storage device 31, a fuel cell 32, a water tank 33, an atomizer 34, and a fan. The housing 10 has a cavity for housing various structural components, and the housing 10 is equipped with an air inlet 11 and an air outlet 12 (see [reference]). Figures 1 to 3 The enclosure 10 can be designed as a detachable structure, facilitating the subsequent installation of various structural components within it. For example... Figure 4 As shown, the support plate 20 is installed inside the receiving cavity, and the support plate 20 can be arranged along the first direction (see...). Figure 4 (In the direction of the middle arrow), the receiving cavity can be divided into a first cavity 13 and a second cavity by the support plate 20. The volumes of the first cavity 13 and the second cavity can be the same or different. The specific size of the first cavity 13 and the second cavity can be specifically set according to the size of the hydrogen storage device 31 and the fuel cell 32, etc., which will not be described in detail in this utility model.

[0043] like Figure 4 As shown, a hydrogen storage device 31 is installed inside the first chamber 13. The hydrogen storage device 31 can be a hydrogen storage cylinder or other hydrogen storage device. An air outlet 12 can be located on the side of the housing 10 where the hydrogen storage device 31 is installed. A fuel cell 32 is installed in the second chamber and is connected to the hydrogen storage device 31 via piping. The fuel cell 32 of this invention can be air-cooled. Hydrogen gas from the hydrogen storage device 31 can be introduced into the fuel cell 32 through piping, facilitating the electrochemical reaction of the fuel cell 32 to generate electricity. An air inlet 11 is located on the side of the housing 10 where the fuel cell 32 is located.

[0044] See Figure 4 A water tank 33 is installed at the bottom of the fuel cell 32 and is connected to the fuel cell 32. The water tank 33 can recover the water generated after the reaction in the fuel cell 32. An atomizer 34 is installed in the second chamber and is connected to the water tank 33. The atomizer 34 is mainly used to atomize the water in the water tank 33 to form water mist. A fan is installed on the outer shell of the fuel cell 32 and is located between the hydrogen storage device 31 and the fuel cell 32. The fan can transfer the heat generated by the fuel cell 32 into the hydrogen storage device 31. The water in the water tank 33 is atomized by the atomizer 34, and the atomized water mist and air are drawn into the fuel cell 32 together by the fan.

[0045] By installing a water tank 33 and an atomizer 34 at the bottom of the fuel cell 32, the water tank 33 recovers the water generated during the reaction process of the fuel cell 32, and the atomizer 34 atomizes the water in the water tank 33. The atomized water mist can be drawn into the fuel cell 32 along with air through a fan, thereby improving the proton transfer performance of the proton exchange membrane, ensuring the power generation performance of the fuel cell 32, maximizing the utilization of the water generated during the reaction process of the fuel cell 32, increasing the air intake humidity on the air side of the fuel cell 32, and effectively improving the performance and stability of the fuel cell 32. At the same time, the fan can also introduce the heat generated by the fuel cell 32 into the hydrogen storage device 31, which can both cool the fuel cell 32 and improve the hydrogen release efficiency of the hydrogen storage device 31.

[0046] According to one embodiment of the present invention, a drain valve is provided between the fuel cell 32 and the water tank 33, and a filter device is provided between the drain valve and the water tank 33.

[0047] In other words, the water produced by the reaction in fuel cell 32 can be collected in water tank 33 through a drain valve. A filter device is installed between the drain valve and water tank 33. The filter device can adsorb and filter the water entering water tank 33 to prevent impurities from entering water tank 33 and causing blockage of atomizer 34 or entering fuel cell 32.

[0048] According to one embodiment of the present invention, a humidity sensor is provided on the housing 10 to detect the ambient humidity. When the humidity sensor detects that the ambient humidity is lower than the working humidity threshold of the fuel cell 32, the atomizer 34 is turned on.

[0049] In other words, the fuel cell backup power supply 100 is equipped with a humidity sensor to monitor the ambient humidity. When the ambient humidity is lower than the minimum operating humidity threshold of the fuel cell 32, the atomizer 34 is turned on for humidification. Furthermore, the fuel cell backup power supply 100 of this invention can also adjust the working duration and intensity of the atomizer 34 according to the ambient humidity.

[0050] According to one embodiment of the present invention, the box 10 is provided with a drain hole at the bottom position corresponding to the hydrogen storage device 31 to drain the water condensed in the first cavity 13.

[0051] In other words, the bottom of the housing 10 corresponding to the hydrogen storage device 31 is provided with a drain hole, and the humid air can condense into liquid water in the first cavity 13, and the liquid water can finally be discharged through the drain hole.

[0052] According to one embodiment of the present invention, the air outlet 12 and the air inlet 11 are located on opposite sides of the housing 10, and a fan is provided between the air outlet 12 and the air inlet 11; or, the air outlet 12 and the air inlet 11 are located on adjacent sides of the housing 10, and an air guide channel is formed between the air outlet 12, the fan and the air inlet 11.

[0053] In other words, such as Figure 1 and Figure 2 As shown, the air outlet 12 and air inlet 11 can be respectively located on opposite sides of the housing 10, and a fan is installed between the air outlet 12 and air inlet 11. When the fan is working, ambient air is introduced into the second chamber through the air inlet 11, thereby supplying oxygen and cooling the fuel cell 32. The heat generated by the fuel cell 32 or the hydrogen leaked from the second chamber can be discharged to the first chamber 13 by the fan, prompting the hydrogen storage device 31 to release hydrogen and improving the hydrogen release efficiency of the hydrogen storage device 31. Finally, the hydrogen is discharged through the air outlet 12 on the housing 10, reducing the safety hazards caused by hydrogen leakage and improving the safety of the fuel cell backup power supply 100. At the same time, the water in the water tank 33 is atomized by the atomizer 34, and the atomized water mist and air are drawn into the fuel cell 32 together by the fan.

[0054] According to one embodiment of the present invention, the fuel cell backup power supply 100 further includes a first partition 41 and electrical components.

[0055] Specifically, a first partition 41 is disposed on the side of the support plate 20 facing the second cavity, and the first partition 41 is arranged along a second direction, which is perpendicular to the first direction, to divide the second cavity into a first chamber 14 and a second chamber 15. The fuel cell 32 is disposed in the first chamber 14. Electrical components are disposed in the second chamber 15. The hydrogen storage device 31, the fuel cell 32, and the electrical components are respectively located in the first cavity 13, the first chamber 14, and the second chamber 15 to balance the overall weight of the fuel cell backup power supply 100.

[0056] In other words, such as Figure 4 As shown, a first partition 41 is installed on the side of the support plate 20 facing the second cavity, and the first partition 41 can be arranged along a second direction, which is perpendicular to the first direction. The first partition 41 can divide the second cavity into a first chamber 14 and a second chamber 15. The volume of the first chamber 14 and the second chamber 15 can be specifically set according to the volume of the fuel cell 32 and the electrical components. In this invention, the first partition 41 is located approximately in the upper middle region of the support plate 20, dividing the second cavity into two chambers, the first chamber 14 and the second chamber 15, with different volumes.

[0057] See Figure 4The fuel cell 32 is installed in the first chamber 14, and the fuel cell 32 can be connected to the hydrogen storage device 31 through a pipeline. Hydrogen in the hydrogen storage device 31 can be introduced into the fuel cell 32 through the pipeline, facilitating the electrochemical reaction of the fuel cell 32 to generate electricity. Electrical components are installed in the second chamber 15. This utility model rationally arranges the various structural components inside the housing 10, placing the hydrogen storage device 31, the fuel cell 32, and the electrical components in the first chamber 13, the first chamber 14, and the second chamber 15 respectively. This effectively balances the overall weight of the fuel cell backup power supply 100, preventing the housing 10 from becoming unbalanced during handling and avoiding accidents caused by tilting or shaking. The internal layout of the fuel cell backup power supply 100 is more reasonable, making it more convenient to carry and effectively improving the user experience.

[0058] Of course, those skilled in the art can understand and implement the specific structure and working principle of the hydrogen storage device 31, fuel cell 32, and electrical components, and will not be described in detail in this utility model.

[0059] In this invention, by incorporating a fan, air can be drawn from the first chamber 14 of the fuel cell 32 into the first chamber 13 of the hydrogen storage device 31, and then discharged from the outlet 12. This ensures that hydrogen gas is promptly discharged, maintaining its concentration within a safe range, preventing it from accumulating to dangerous levels, reducing the risk of contact with electrical components, and extending the lifespan of the electrical components. Simultaneously, water in the water tank 33 is atomized by the atomizer 34, and the resulting water mist and air are drawn into the fuel cell 32 together by the fan. Of course, the specific shape, number, and arrangement of the air inlet 11 and outlet 12 can be customized according to actual needs, and will not be detailed further in this invention.

[0060] According to one embodiment of the present invention, the fuel cell backup power supply 100 further includes a second partition 42 and a rechargeable battery 54.

[0061] Specifically, the second partition 42 is disposed within the first cavity 13 and is located between the hydrogen storage device 31 and the support plate 20. The second partition 42 is arranged parallel to the support plate 20, and the second partition 42 and the support plate 20 define a third chamber 16. The rechargeable battery 54 is disposed within the third chamber 16.

[0062] In other words, such as Figure 4As shown, the fuel cell backup power supply 100 also includes a second partition 42 and a rechargeable battery 54. The second partition 42 is installed within the first cavity 13, extends vertically, and is positioned between the hydrogen storage device 31 and the support plate 20. The second partition 42 can be arranged parallel to the support plate 20, and the second partition 42 and the support plate 20 define a third chamber 16. The rechargeable battery 54 is installed within the third chamber 16. By providing the second partition 42 within the first cavity 13, the rechargeable battery 54 and the hydrogen storage device 31 are separated, effectively preventing hydrogen from the hydrogen storage device 31 from entering the second chamber 15 of the electrical components, thus avoiding impact on the service life of the electrical components and reducing replacement costs.

[0063] In this utility model, see Figure 4 A fixing member 35 can be provided on the hydrogen storage device 31. The fixing member 35 can be a fixing clamp or a fixing plate. One end of the fixing member 35 is connected to the support plate 20. The hydrogen storage device 31 can be fixed in the housing 10 by the fixing member 35 to prevent the hydrogen storage device 31 from shaking and improve the safety of the portable fuel cell backup power supply. The second partition 42 corresponds to the position of the second chamber 15 in the second direction and is located in the upper half of the first chamber 13. The second partition 42 can extend from the top wall of the housing 10 to the fixing member 35, thereby separating the rechargeable battery 54 and the hydrogen storage device 31, effectively preventing the hydrogen discharged from the hydrogen storage device 31 from entering the second chamber 15 of the electrical components, avoiding affecting the service life of the electrical components and reducing the replacement cost of the electrical components.

[0064] The fan is located inside the first chamber 13 and is mounted on the outer casing of the fuel cell 32, with the fan positioned corresponding to the fuel cell 32 to ensure communication with the first chamber 14. By installing the fan, the heat generated by the fuel cell 32 can be directed into the hydrogen storage device 31, thus supplying oxygen and cooling the fuel cell 32. Simultaneously, the heat generated by the reaction in the fuel cell 32 is also directed into the hydrogen storage device 31, prompting it to release hydrogen and improving its hydrogen release efficiency. At the same time, water in the water tank 33 is atomized by the atomizer 34, and the resulting water mist and air are drawn into the fuel cell 32 together by the fan.

[0065] According to one embodiment of the present invention, the electrical components include: a controller 51, a DC converter 52, and a relay 53. The controller 51, the DC converter 52, and the relay 53 are all located in the second chamber 15. The DC converter 52 is connected to the support plate 20. The relay 53 and the controller 51 are sequentially installed on the first partition 41 along the first direction, and the controller 51 is away from the support plate 20 relative to the DC converter 52.

[0066] In other words, such as Figure 4As shown, the electrical components mainly consist of a controller 51, a DC-DC converter 52, and a relay 53. The controller 51, DC-DC converter 52, and relay 53 are all located in the second chamber 15. The DC-DC converter 52 is fixedly connected to the support plate 20. The relay 53 and controller 51 are installed vertically on the first partition 41, with the controller 51 positioned away from the support plate 20 relative to the DC-DC converter 52. This arrangement of electrical components within the housing 10 effectively balances the overall weight of the fuel cell backup power supply 100, preventing the housing 10 from becoming unbalanced during transport and avoiding accidents caused by tilting or shaking. The portable fuel cell backup power supply features a more rational internal layout, is more convenient to carry, and effectively improves the user experience.

[0067] According to one embodiment of the present invention, a handle 61 is provided on the top of the housing 10, and the handle 61 is located at the center of gravity of the fuel cell backup power supply 100.

[0068] In other words, such as Figures 1 to 4 As shown, a handle 61 is provided on the top of the housing 10, and the handle 61 can be roughly positioned at the center of gravity of the fuel cell backup power supply 100. In designing the fuel cell backup power supply 100, this invention fully considers the counterweight issue of the fuel cell backup power supply 100, placing the controller 51, DC converter 52, and relay 53 above the fuel cell 32, and the rechargeable battery 54 above the fan. Positioning the handle 61 at the center of gravity of the housing 10 ensures the balance of the housing 10 during transportation. When the handle 61 is at the center of gravity, regardless of how the transporter moves or rotates the housing 10, a good balance can be maintained, reducing accidents caused by tilting or shaking.

[0069] In this invention, an inlet valve and a drain valve are respectively installed on the bottom walls of the housing 10 and the first cavity 13. A pressure reducing valve 36 is installed at the end of the hydrogen storage device 31 facing the top wall of the housing 10. The inlet valve is positioned before the hydrogen in the hydrogen storage device 31 enters the fuel cell 50 after passing through the pressure reducing valve 36. The inlet valve is connected to the inlet of the fuel cell 32. The drain valve is connected to the drain outlet of the fuel cell 32 to discharge the water and unreacted gases generated by the reaction in the fuel cell 32. The hydrogen in the hydrogen storage device 31 enters the fuel cell 32 through the pressure reducing valve 36, the hydrogen supply pipeline, and the inlet valve, thereby ensuring the safe output of hydrogen from the hydrogen storage device 31 and satisfying the full electrochemical reaction of the fuel cell 32.

[0070] According to one embodiment of the present invention, such as Figures 1 to 3As shown, the top of the housing 10 is respectively provided with a display screen 62, a power supply device 63, a power button 64, and a start button 65, and the positions of the display screen 62, power supply device 63, power button 64, and start button 65 on the housing 10 correspond to the positions of the second cavity. In this utility model, the power supply device 63 includes a female power supply connector and a male power supply connector. This utility model does not limit the position of the power supply device 63; it can be set on the top of the housing 10 or on the side of the housing 10. Of course, for those skilled in the art, the specific structure and working principle of the display screen 62, power supply device 63, power button 64, and start button 65 are understandable and achievable, and will not be described in detail in this utility model.

[0071] In summary, the fuel cell backup power supply 100 according to this embodiment of the present invention, by setting a water tank 33 and an atomizer 34 at the bottom of the fuel cell 32, recovers the water generated during the reaction of the fuel cell 32 through the water tank 33, and atomizes the water in the water tank 33 through the atomizer 34. The atomized water mist and air are drawn into the fuel cell 32 together through a fan, thereby improving the proton transfer performance of the proton exchange membrane, ensuring the power generation performance of the fuel cell 32, maximizing the utilization of the water generated during the reaction of the fuel cell 32, increasing the air intake humidity of the fuel cell 32, and effectively improving the performance and stability of the fuel cell 32. At the same time, the fan can also introduce the heat generated by the fuel cell 32 into the hydrogen storage device 31, which can both supply oxygen and cool the fuel cell 32, and improve the hydrogen release efficiency of the hydrogen storage device 31.

[0072] Furthermore, by installing a support plate 20 and a first partition 41 inside the housing 10, the internal cavity of the housing 10 is divided into a first chamber 13, a first chamber 14, and a second chamber 15. The hydrogen storage device 31 is located in the first chamber 13, the fuel cell 32 is located in the first chamber 14, and the electrical components are located in the second chamber 15. This effectively balances the overall weight of the fuel cell backup power supply, preventing the housing 10 from becoming unbalanced during handling and avoiding accidents caused by tilting or shaking. The internal layout of the portable fuel cell backup power supply is more reasonable, making it more convenient to carry and effectively improving the user experience. At the same time, by incorporating structures such as fans, air can be introduced from the first chamber 14 of the fuel cell 32 into the first chamber 13 of the hydrogen storage device 31 and then discharged from the air outlet 12, thereby timely discharging of hydrogen gas and ensuring that the hydrogen concentration is always within a safe range, preventing it from accumulating to a dangerous concentration, reducing the risk of contact with electrical components, and improving the service life of electrical components.

[0073] Of course, for those skilled in the art, the other structures and working principles of the fuel cell backup power supply 100 are understandable and achievable, and will not be described in detail in this utility model.

[0074] A second aspect of this utility model provides a fuel cell backup power system, including the fuel cell backup power supply described in the above embodiments. Since the fuel cell backup power supply according to the embodiments of this utility model has the above-mentioned technical effects, the fuel cell backup power system according to the embodiments of this utility model also has corresponding technical effects. Specifically, the fuel cell backup power system of this utility model can maximize the utilization of water generated during the reaction process of the fuel cell 32, increasing the air intake humidity on the air side of the fuel cell 32, and effectively improving the performance and stability of the fuel cell 32. Simultaneously, the fan can also guide the heat generated by the fuel cell 32 into the hydrogen storage device 31, achieving both oxygen supply and cooling of the fuel cell 32, and improving the hydrogen release efficiency of the hydrogen storage device 31.

[0075] Furthermore, this fuel cell backup power system can effectively balance the overall weight of the fuel cell backup power supply, preventing the container from becoming unbalanced during handling and avoiding accidents caused by tilting or shaking. The portable fuel cell backup power supply has a more reasonable internal layout, is more convenient to carry, is practical and safe, and effectively improves the user experience.

[0076] Of course, other structures and working principles of fuel cell backup power systems are understandable and achievable for those skilled in the art, and will not be described in detail in this utility model.

[0077] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A fuel cell backup power supply (100), characterized in that, include: The box (10) has a defined cavity inside, and the box (10) is provided with an air inlet (11) and an air outlet (12); A support plate (20) is disposed in the receiving cavity. The support plate (20) is arranged along a first direction and divides the receiving cavity into a first cavity (13) and a second cavity. Hydrogen storage device (31), the hydrogen storage device (31) is located in the first cavity (13), and the air outlet (12) is located on the side of the box (10) where the hydrogen storage device (31) is located; A fuel cell (32) is disposed in the second cavity. The fuel cell (32) is connected to the hydrogen storage device (31) via a pipeline. The air inlet (11) is located on the side of the housing (10) where the fuel cell (32) is disposed. A water tank (33) is located at the bottom of the fuel cell (32) and is connected to the fuel cell (32) to collect the water generated after the reaction of the fuel cell (32); Atomizer (34) is provided in the second cavity and is connected to the water tank (33). The atomizer (34) is used to atomize the water in the water tank (33). A fan is provided on the outer casing of the fuel cell (32) and is located between the hydrogen storage device (31) and the fuel cell (32) to transfer the heat generated by the fuel cell (32) into the hydrogen storage device (31) and to transfer the water mist generated by the atomizer (34) into the fuel cell (32) along with the air.

2. The fuel cell backup power supply (100) according to claim 1, characterized in that, A drain valve is provided between the fuel cell (32) and the water tank (33), and a filter device is provided between the drain valve and the water tank (33).

3. The fuel cell backup power supply (100) according to claim 1, characterized in that, The housing (10) is equipped with a humidity sensor to detect the ambient humidity. When the humidity sensor detects that the ambient humidity is lower than the working humidity threshold of the fuel cell (32), the atomizer (34) is turned on.

4. The fuel cell backup power supply (100) according to claim 1, characterized in that, The housing (10) is provided with a drain hole at the bottom position corresponding to the hydrogen storage device (31) to drain the water condensed in the first cavity (13).

5. The fuel cell backup power supply (100) according to claim 1, characterized in that, The air outlet (12) and the air inlet (11) are located on opposite sides of the housing (10), and the fan is provided between the air outlet (12) and the air inlet (11); or, the air outlet (12) and the air inlet (11) are located on adjacent sides of the housing (10), and an air guide channel is formed between the air outlet (12), the fan and the air inlet (11).

6. The fuel cell backup power supply (100) according to claim 1, characterized in that, Also includes: A first partition (41) is provided on the side of the support plate (20) facing the second cavity, and the first partition (41) is arranged along a second direction, which is perpendicular to the first direction, to divide the second cavity into a first chamber (14) and a second chamber (15), and the fuel cell (32) is provided in the first chamber (14). Electrical components are provided in the second chamber (15), the hydrogen storage device (31), the fuel cell (32) and the electrical components are respectively located in the first chamber (13), the first chamber (14) and the second chamber (15) to balance the overall weight of the fuel cell backup power supply (100).

7. The fuel cell backup power supply (100) according to claim 6, characterized in that, Also includes: The second partition (42) is disposed in the first cavity (13) and is located between the hydrogen storage device (31) and the support plate (20). The second partition (42) is arranged parallel to the support plate (20) and defines a third chamber (16) between the second partition (42) and the support plate (20). A rechargeable battery (54) is disposed in the third chamber (16).

8. The fuel cell backup power supply (100) according to claim 6, characterized in that, The electrical components include a controller (51), a DC converter (52), and a relay (53). The controller (51), the DC converter (52), and the relay (53) are all located in the second chamber (15). The DC converter (52) is connected to the support plate (20). The relay (53) and the controller (51) are sequentially mounted on the first partition (41) along the first direction, and the controller (51) is away from the support plate (20) relative to the DC converter (52).

9. The fuel cell backup power supply (100) according to claim 1, characterized in that, The top of the housing (10) is provided with a handle (61), which is located at the center of gravity of the fuel cell backup power supply (100).

10. The fuel cell backup power supply (100) according to claim 1, characterized in that, The top of the housing (10) is provided with a display screen (62), a power supply device (63), a power button (64) and a start button (65), and the positions of the display screen (62), the power supply device (63), the power button (64) and the start button (65) on the housing (10) correspond to the positions of the second cavity.

11. A fuel cell backup power system, characterized in that, Includes the fuel cell backup power source (100) as described in any one of claims 1-10.

Images