Fuel cell engine and its casing purging device

Abstract

The utility model relates to fuel cell technical field discloses a kind of fuel cell engine and its box purging device, its fuel cell engine's box purging device, comprising: box, one end of its side is provided with first air inlet, the side opposite of the box with the first air inlet is provided with gas outlet;Fan, it is set at the first air inlet;First fairing, it covers in the first air inlet and shields the first air inlet, and the first fairing is downward opening.The utility model passes through such structure, can be more thoroughly purged to the inside of box, to discharge or dilute hydrogen in the inside of box, the setting of first fairing can shield rainwater and so on fluid, suction from below, reduce the interference of fluid to air inlet pressure at the first air inlet, ensure purging pressure, guarantee purging effect.

Description

Technical Field

[0001] This utility model relates to the field of fuel cell technology, and in particular to a fuel cell engine and its housing purging device. Background Technology

[0002] When hydrogen is detected inside the fuel cell engine casing, a purging device is needed to purge the inside of the casing to dilute and remove the hydrogen in order to prevent hydrogen accumulation and potential safety risks.

[0003] However, existing purging devices have a significant technical bottleneck: their air inlet design is susceptible to environmental interference. When exposed to rain or other fluid media near the air inlet, the pressure field in the air inlet channel fluctuates drastically, causing a significant deviation in the purging pressure. This pressure instability not only greatly weakens the purging effect but also prevents the hydrogen inside the chamber from being effectively diluted and discharged. Utility Model Content

[0004] The purpose of this invention is to provide a fuel cell engine and its casing purging device that can reduce the interference of fluid on the intake pressure at the intake port and ensure the purging effect.

[0005] To achieve the above objectives, this utility model provides a fuel cell engine casing purging device, comprising:

[0006] The housing has a first air inlet at one end of its side and an air outlet on the side opposite to the first air inlet.

[0007] A fan is installed at the first air inlet;

[0008] A first air deflector is provided on the first air inlet and covers the first air inlet, and the first air deflector opens downward.

[0009] In some embodiments:

[0010] The fan is located outside the housing, and the first air guide cover covers and shields the fan.

[0011] In some embodiments:

[0012] The first air inlet is configured as two, and the two first air inlets are distributed on the left and right sides of the middle of the side of the box body. Each first air inlet is provided with a fan and a first air guide.

[0013] In some embodiments, the fuel cell engine casing purging device further includes:

[0014] An air vent plate is connected to the air vent, and the air vent plate is provided with air vent holes.

[0015] In some embodiments:

[0016] The air outlet is configured as a plurality of holes, and the plurality of air outlets are distributed in a matrix on the air outlet plate.

[0017] In some embodiments:

[0018] The air outlet plate includes a plate body and a guide section. The plate body is connected to the air outlet, the air outlet is disposed on the plate body, and the guide section is also disposed on the plate body at the air outlet.

[0019] In some embodiments:

[0020] The guide section has a downward opening, and the guide section covers and shields the air outlet.

[0021] In some embodiments:

[0022] The housing is also provided with a second air inlet, which is located on the same side of the housing as the first air inlet.

[0023] In some embodiments, the fuel cell engine casing purging device further includes:

[0024] A second air deflector is disposed on the housing, the second air deflector covers and shields the second air inlet, and the second air deflector opens downward.

[0025] This utility model also provides a fuel cell engine, including a fuel cell engine housing purging device as described in any of the preceding paragraphs.

[0026] This utility model provides a fuel cell engine and its casing purging device, which has the following advantages compared with the prior art:

[0027] The present invention discloses a fuel cell engine housing purging device, comprising a housing, a fan, and a first guide shroud. The housing has a first air inlet and an air outlet at its two ends, which can thoroughly purge the inside of the housing to discharge or dilute the hydrogen inside the housing. The first guide shroud can block rainwater and other fluids, and draw air from below, reducing the interference of fluids on the intake pressure at the first air inlet, ensuring the purging pressure and guaranteeing the purging effect.

[0028] The fuel cell engine of this invention includes the aforementioned fuel cell engine housing purging device, which can thoroughly purge the inside of the housing to discharge or dilute the hydrogen inside the housing, while reducing the interference of fluid on the intake pressure at the first air inlet, ensuring the purging pressure and guaranteeing the purging effect. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the fuel cell engine housing purging device according to an embodiment of the present invention.

[0030] Figure 2 This is a structural schematic diagram of the fuel cell engine casing purging device from another angle according to an embodiment of the present invention.

[0031] Figure 3 yes Figure 1 Disassembly diagram of the middle structure.

[0032] Figure 4 yes Figure 1 A schematic diagram of part of the structure.

[0033] Figure 5 This is a schematic diagram of the structure of the first flow guide shield according to an embodiment of the present utility model.

[0034] Figure 6 This is a schematic diagram of the structure of the air outlet plate in an embodiment of this utility model.

[0035] Figure 7 This is a schematic diagram of the structure of the second guide shield of this utility model.

[0036] In the figure, 1 is the housing; 2 is the fan; 3 is the first air guide; 4 is the air outlet plate; 5 is the second air guide; 11 is the first air inlet; 12 is the air outlet; 13 is the second air inlet; 41 is the air outlet hole; 42 is the plate; and 43 is the air guide section. Detailed Implementation

[0037] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0038] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] 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 based on the specific circumstances.

[0040] Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0041] Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] Please refer to Figure 1-4 A purging device for the housing 1 of a fuel cell engine according to an embodiment of the present invention includes: housing 1, fan 2 and first guide shroud 3.

[0043] A first air inlet 11 is provided at one end of the side of the housing 1, and an air outlet 12 is provided on the side of the housing 1 opposite to the first air inlet 11.

[0044] The first air inlet 11 and the air outlet 12 are respectively provided at both ends of the side of the housing 1. The purging path is not too complicated and can thoroughly purge the inside of the housing 1.

[0045] Fan 2 is located at the first air inlet 11.

[0046] The fan 2 can drive the airflow from the first air inlet 11 into the interior of the housing 1.

[0047] Please refer to Figure 5 The first air deflector 3 is installed over and covers the first air inlet 11, and the first air deflector 3 opens downward.

[0048] The first deflector 3 is designed to guide airflow from below into the first deflector 3 and then into the first air inlet 11. The first deflector 3 can shield against rainwater and other fluids, reducing the interference of fluids on the intake pressure at the first air inlet 11.

[0049] The fuel cell engine housing 1 purging device of this embodiment includes a housing 1, a fan 2, and a first guide shroud 3. A first air inlet 11 and an air outlet 12 are respectively provided at both ends of the housing 1, which can thoroughly purge the inside of the housing 1 to discharge or dilute the hydrogen inside the housing 1. The first guide shroud 3 can block rainwater and other fluids, and draw air from below, reducing the interference of fluids on the intake pressure at the first air inlet 11, ensuring the purging pressure and guaranteeing the purging effect.

[0050] The fuel cell engine housing 1 is equipped with a cooling system on both sides, and a purging device for housing 1 is installed on the other two sides. This device can both purge the inside of housing 1 and avoid the cooling system.

[0051] In this embodiment, the fan 2 is located outside the housing 1, and the first air guide shroud 3 covers and shields the fan 2. The fan 2 is outside the housing 1 and located inside the first air guide shroud 3. The fan 2 drives the air outside the housing 1 to enter the first air inlet 11 through the air duct formed inside the first air guide shroud 3.

[0052] Two first air inlets 11 are provided, and the two first air inlets 11 are distributed on the left and right sides of the middle of the side of the housing 1. Each first air inlet 11 is provided with a fan 2 and a first air guide shroud 3.

[0053] The two first air inlets 11 allow outside air to enter the chamber 1 from different positions, reducing the blind spots inside the chamber 1 and enabling a more thorough cleaning of the interior of the chamber 1.

[0054] Please refer to Figure 6 The purging device for the housing 1 of the fuel cell engine in this embodiment also includes an exhaust plate 4, which is connected to the exhaust port 12 and has an exhaust hole 41.

[0055] The position and size of the air outlet 41 can also affect the airflow direction and purging pressure inside the chamber 1, thereby adjusting the purging effect inside the chamber 1.

[0056] In this embodiment, multiple air outlets 41 are provided, and these multiple air outlets 41 are distributed in a matrix on the air outlet plate 4. By distributing the multiple air outlets 41 in this structure, the internal flow field can be made uniform, resulting in more uniform internal purging and ensuring the purging effect.

[0057] The air outlet plate 4 includes a plate body 42 and a guide section 43. The plate body 42 is disposed on the air outlet 12, the air outlet 41 is disposed on the plate body 42, and the guide section 43 is also disposed on the plate body 42, and the guide section 43 is disposed at the air outlet 41.

[0058] After the plate 42 is installed on the air outlet 12, the plate 42 will block the air outlet 12, and the blowing airflow inside the box 1 will leave the box 1 through the air outlet 41 on the plate 42.

[0059] The guide section 43 can guide the direction of the gas flowing out of the vent 41, which is equivalent to changing the opening orientation of the vent 12.

[0060] In this embodiment, the guide section 43 has a downward opening, and the guide section 43 covers and shields the air outlet 12. With this structure, the purge airflow is guided downward by the guide section 43, which can block rainwater and other fluids, and reduce the interference of fluids on the air outlet pressure at the air outlet 41.

[0061] The housing 1 is also provided with a second air inlet 13, which is located on the same side of the housing 1 as the first air inlet 11.

[0062] The second air inlet 13 is the air inlet for the fuel cell engine. An air compressor is installed to blow air into the housing 1 from the second air inlet 13. However, when hydrogen is detected inside the housing 1, since the air compressor is powered by high voltage, the high voltage is usually turned off for production safety. In this embodiment, the fan 2 is not powered by high voltage, so the fan 2 can still work normally, and the purge airflow enters the housing 1 from the first air inlet 11.

[0063] Please refer to Figure 7 The purging device for the housing 1 of the fuel cell engine also includes a second shroud 5, which is disposed on the housing 1 and covers and shields the second air inlet 13. The second shroud 5 opens downward.

[0064] The second air deflector 5 can block rainwater and other fluids, and draw air in from below, reducing the interference of fluids on the intake pressure at the second air inlet 13.

[0065] This embodiment also provides a fuel cell engine, including the above-mentioned fuel cell engine housing 1 purging device, which can thoroughly purge the inside of the housing 1 to discharge or dilute the hydrogen inside the housing 1, while reducing the interference of fluid on the intake pressure at the first air inlet 11, ensuring the purging pressure and guaranteeing the purging effect.

[0066] The working process of this utility model is as follows: the fan 2 blows air into the box 1 from the first air inlet 11 through the first guide shroud 3, and then blows it out of the box 1 from the air outlet 12 on the other side of the box 1.

[0067] In summary, this utility model embodiment provides a fuel cell engine and its housing 1 purging device. The housing 1 purging device of the fuel cell engine can thoroughly purge the inside of the housing 1 to discharge or dilute the hydrogen inside the housing 1. The first guide shroud 3 can block rainwater and other fluids, and draw air from below to reduce the interference of fluids on the intake pressure at the first air inlet 11, ensuring the purging pressure and guaranteeing the purging effect.

[0068] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A fuel cell engine tank purging device characterized by comprising: include: The housing has a first air inlet at one end of its side and an air outlet on the side opposite to the first air inlet. A fan is installed at the first air inlet; A first air deflector is provided on the first air inlet and covers the first air inlet, and the first air deflector opens downward.

2. The fuel cell engine casing purging device according to claim 1, characterized in that: The fan is located outside the housing, and the first air guide cover covers and shields the fan.

3. The fuel cell engine casing purging device according to claim 1, characterized in that: The first air inlet is configured as two, and the two first air inlets are distributed on the left and right sides of the middle of the side of the box body. Each first air inlet is provided with a fan and a first air guide.

4. The fuel cell engine casing purging device according to claim 1, characterized in that, Also includes: An air vent plate is connected to the air vent, and the air vent plate is provided with air vent holes.

5. The fuel cell engine casing purging device according to claim 4, characterized in that: The air outlet is configured as a plurality of holes, and the plurality of air outlets are distributed in a matrix on the air outlet plate.

6. The fuel cell engine casing purging device according to claim 4, characterized in that: The air outlet plate includes a plate body and a guide section. The plate body is connected to the air outlet, the air outlet is disposed on the plate body, and the guide section is also disposed on the plate body at the air outlet.

7. The fuel cell engine casing purging device according to claim 6, characterized in that: The guide section has a downward opening, and the guide section covers and shields the air outlet.

8. The fuel cell engine casing purging device according to claim 1, characterized in that: The housing is also provided with a second air inlet, which is located on the same side of the housing as the first air inlet.

9. The fuel cell engine case purging apparatus according to claim 8, characterized by Also includes: A second air deflector is disposed on the housing, the second air deflector covers and shields the second air inlet, and the second air deflector opens downward.

10. A fuel cell engine characterized by comprising: Includes the casing purging device for a fuel cell engine as described in any one of claims 1-9.

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