A fuel cell cartridge level viewing device

Abstract

The utility model belongs to fuel cell technical field, specifically disclose a kind of fuel cell box liquid level observation device, it includes observation cover and support;Observation cover and support are connected with fuel cell box;The top of observation cover is provided with air hole and elastic closure part;Support is provided with the support beam below elastic closure part, the side of support beam towards elastic closure part is provided with pressure relief thorn, and pressure relief thorn is used to pierce elastic closure part;When pressure relief thorn pierces elastic closure part, elastic closure part produces ventilation gap, to make air hole communicate with external space by ventilation gap.When fuel cell appears purging port blockage or internal hydrogen flash, the pressure in fuel cell box increases, and elastic closure part will be convex downward, so that pressure relief thorn pierces elastic closure part, reach the purpose of fuel cell exhaust pressure relief, to protect box and internal component, ensure fuel cell internal component intact.

Description

Technical Field

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

[0002] Currently, fuel cell tank liquid level observation covers are installed on the tank body, allowing users to check the internal liquid level and detect problems promptly. However, existing liquid level observation covers only have the function of observing the internal liquid level, which is relatively limited. When the fuel cell experiences a purge port blockage or internal hydrogen flash explosion, the internal pressure increases, and simply observing the liquid level cannot detect and resolve the problem in time, potentially causing damage to the tank body and internal components, thus affecting its use. Utility Model Content

[0003] The purpose of this invention is to provide a fuel cell tank liquid level observation device to solve the technical problem that the liquid level observation cover in the prior art has a relatively simple function and cannot solve the problem of increased pressure inside the tank.

[0004] To achieve the above objectives, this utility model provides a fuel cell housing liquid level observation device for installation on a fuel cell housing, comprising: an observation cover and a bracket; both the observation cover and the bracket are connected to the fuel cell housing; wherein, the top of the observation cover is provided with a vent hole for communicating with the interior of the fuel cell housing; the bottom of the observation cover is provided with an elastic sealing portion; the bracket is provided with a support beam located below the elastic sealing portion, and the support beam is provided with a pressure relief spike on the side facing the elastic sealing portion, the pressure relief spike being used to puncture the elastic sealing portion; when the pressure relief spike punctures the elastic sealing portion, the elastic sealing portion creates a ventilation gap, allowing the vent hole to communicate with the external space through the ventilation gap.

[0005] Preferably, the pressure relief spike is a V-shaped spike.

[0006] Preferably, the observation cover has a mounting portion on its top outer edge, which is used to connect to the fuel cell housing.

[0007] Preferably, the mounting portion is provided with a plurality of mounting holes for connecting to the fuel cell housing.

[0008] Preferably, the bracket is provided with a connecting part, which abuts against the mounting part, and the connecting part is provided with a connecting hole corresponding to the mounting hole. The bracket and the observation cover are connected to the fuel cell housing by fasteners passing through the connecting hole and the mounting hole.

[0009] Preferably, the bracket further includes two connecting arms; the two connecting arms are located at both ends of the support beam, and each of the two connecting arms has a connecting portion at the end closest to the mounting portion.

[0010] Preferably, the mounting portion is annular.

[0011] Preferably, the two connecting portions are arranged symmetrically about the center of the mounting portion.

[0012] Preferably, the observation cover is provided with a transparent window for observing the liquid level inside the fuel cell housing.

[0013] Preferably, the bracket is provided with a connecting part for connecting to the fuel cell housing.

[0014] The fuel cell tank liquid level observation device provided by this utility model has the following advantages: The bottom of the observation cover is provided with an elastic sealing part, and the top of the observation cover is provided with a vent hole. A support beam is provided below the elastic sealing part, so that the pressure relief spikes on the support beam can face the elastic sealing part. When the fuel cell experiences a purge port blockage or internal hydrogen flash explosion, the pressure inside the fuel cell tank increases, and the elastic sealing part will bulge downwards to touch the pressure relief spikes. When the gas pressure inside the tank increases to a certain value, the elastic sealing part bulges downwards, causing the pressure relief spikes to pierce the elastic sealing part, thus creating a ventilation gap. This allows the vent hole to connect with the external space through the ventilation gap, allowing the gas inside the tank to flow through the vent hole and ventilation gap to be discharged to the outside, achieving the purpose of venting and depressurizing the fuel cell, protecting the tank and internal components, and ensuring the integrity of the fuel cell's internal components. Therefore, the fuel cell tank liquid level observation device not only observes the liquid level inside the fuel cell tank but also has a pressure relief protection function to better protect the fuel cell tank and internal components.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the fuel cell tank liquid level observation device according to an embodiment of the present invention;

[0017] Figure 2 This is a cross-sectional structural schematic diagram of the fuel cell tank liquid level observation device according to an embodiment of the present invention;

[0018] Figure 3 This is a structural schematic diagram of the fuel cell tank liquid level observation device according to an embodiment of the present invention, viewed from below.

[0019] Figure 4This is a schematic diagram of the disassembled structure of the fuel cell tank liquid level observation device according to an embodiment of this utility model.

[0020] In the figure, 100 is the observation cover; 110 is the vent; 120 is the elastic sealing part; 130 is the mounting part; 131 is the mounting hole; 140 is the transparent window; 200 is the bracket; 210 is the support beam; 220 is the pressure relief spike; 230 is the connecting part; 231 is the connecting hole; and 240 is the connecting arm. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0022] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0024] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0025] Please refer to the following: Figures 1 to 4 The fuel cell tank liquid level observation device provided in this embodiment will now be described. This fuel cell tank liquid level observation device is installed on the fuel cell tank to promptly detect problems occurring inside the battery.

[0026] like Figures 1 to 4As shown, the fuel cell tank liquid level observation device of this utility model embodiment includes an observation cover 100 and a bracket 200; both the observation cover 100 and the bracket 200 are connected to the fuel cell tank; wherein, the top of the observation cover 100 is provided with a vent 110 for communicating with the interior of the fuel cell tank; the bottom of the observation cover 100 is provided with an elastic sealing part 120; the bracket 200 is provided with a support beam 210 located below the elastic sealing part 120, and the support beam 210 is provided with a pressure relief spike 220 on the side facing the elastic sealing part 120, the pressure relief spike 220 is used to pierce the elastic sealing part 120; when the pressure relief spike 220 pierces the elastic sealing part 120, the elastic sealing part 120 creates a ventilation gap, so that the vent 110 communicates with the external space through the ventilation gap.

[0027] The observation cover 100 is equipped with a transparent window 140 so that users or maintenance workers can view the liquid level inside the fuel cell box through the transparent window 140 and detect problems inside the battery in a timely manner.

[0028] The elastic sealing part 120 is made of elastic plastic. When the purge port of the fuel cell becomes blocked or an internal hydrogen flash explosion occurs, the pressure inside the fuel cell casing increases, and the elastic sealing part 120 will bulge downwards to touch the pressure relief spike 220. Therefore, when the gas pressure inside the casing reaches a certain value, the elastic sealing part 120 bulges downwards, causing the pressure relief spike 220 to puncture the elastic sealing part 120. This creates a ventilation gap, allowing the vent 110 to connect with the external space through the ventilation gap. This allows the gas inside the casing to flow through the vent 110 and the ventilation gap to be discharged to the outside, achieving the purpose of venting and depressurizing the fuel cell, protecting the casing and internal components, and ensuring the integrity of the internal components of the fuel cell.

[0029] It is understandable that since both the observation cover 100 and the bracket 200 are fixed to the fuel cell housing, the bracket 200 can be fixed to secure the pressure relief spike 220, ensuring that the pressure relief spike 220 can pierce the elastic sealing part 120.

[0030] The fuel cell tank liquid level observation device of this embodiment includes an observation cover 100 and a support 200. The bottom of the observation cover 100 is provided with an elastic sealing portion 120, and the top of the observation cover 100 is provided with a vent hole 110. The support 200 is provided with a support beam 210 located below the elastic sealing portion 120, so that the pressure relief spikes 220 on the support beam 210 can face the elastic sealing portion 120. When the fuel cell experiences purging port blockage or internal hydrogen flash explosion, the pressure inside the fuel cell tank increases, and the elastic sealing portion 120 will... The pressure relief spike 220 will protrude downwards to touch the pressure relief spike 220. When the pressure inside the box increases to a certain value, the elastic sealing part 120 will protrude downwards, causing the pressure relief spike 220 to pierce the elastic sealing part 120. The elastic sealing part 120 will then create a ventilation gap, allowing the vent 110 to connect with the external space through the ventilation gap. This allows the gas inside the box to flow through the vent 110 and the ventilation gap to be discharged to the outside, achieving the purpose of venting and depressurizing the fuel cell, protecting the box and internal components, and ensuring the integrity of the internal components of the fuel cell.

[0031] In some embodiments of this utility model, in order to ensure the structural strength of the pressure-relieving spike 220 and to ensure that the pressure-relieving spike 220 can pierce the elastic sealing part 120, the pressure-relieving spike 220 is a V-shaped spike. Specifically, as shown in the figure... Figure 1 As shown, the spike is a square pyramid shape. In addition, pressure relief testing can also use a conical spike.

[0032] In some embodiments of this utility model, reference is made to Figures 1 to 2 The observation cover 100 has a mounting portion 130 on its top outer edge, which is used to connect with the fuel cell housing. The mounting portion 130 is used to connect with the fuel cell housing so that the observation cover 100 is fixedly mounted on the fuel cell housing.

[0033] In some embodiments of this utility model, reference is made to Figures 1 to 2 The mounting portion 130 is provided with a plurality of mounting holes 131 for connecting to the fuel cell housing. The mounting holes 131 can be used to install fasteners such as bolts and pins to mount the observation cover 100 onto the fuel cell housing. Alternatively, it can be fixed to the fuel cell housing using adhesives or other bonding methods.

[0034] In some embodiments of this utility model, reference is made to Figures 1 to 4The bracket 200 is provided with a connecting portion 230, which abuts against the mounting portion 130. The connecting portion 230 also has a connecting hole 231 corresponding to the mounting hole 131. The bracket 200 and the observation cover 100 are connected to the fuel cell housing via fasteners passing through the connecting hole 231 and the mounting hole 131. This allows the bracket 200 and the observation cover 100 to be installed on the fuel cell housing simultaneously using fasteners for easy installation. Alternatively, the connecting portion 230 of the bracket 200 can be directly connected to the fuel cell housing to secure the bracket 200 to the fuel cell housing.

[0035] In some embodiments of this utility model, reference is made to Figures 1 to 4 The bracket 200 also includes two connecting arms 240; the two connecting arms 240 are located at both ends of the support beam 210, and each of the two connecting arms 240 is provided with a connecting part 230 at the end near the mounting part 130. This allows both ends of the support beam 210 to be connected to the fuel cell housing, so as to better fix the support beam 210 and fix the position of the pressure relief spike 220, so as to better pierce the elastic sealing part 120.

[0036] In some embodiments of this utility model, reference is made to Figures 1 to 4 The mounting part 130 is annular in shape and is adapted to the circular observation cover 100 for manufacturing purposes.

[0037] In some embodiments of this utility model, in order to make the force on the bracket 200 more balanced, the two connecting parts 230 are symmetrically arranged about the center of the mounting part 130. This allows the bracket 200 to be better installed on the fuel cell housing, makes the support beam 210 less prone to breakage, and ensures that the pressure relief spike 220 can pierce the elastic sealing part 120.

[0038] In summary, the fuel cell tank liquid level observation device of this embodiment includes an observation cover 100 and a support 200. The bottom of the observation cover 100 is provided with an elastic sealing portion 120, and the top of the observation cover 100 is provided with a vent hole 110. The support 200 is provided with a support beam 210 located below the elastic sealing portion 120, so that the pressure relief spikes 220 on the support beam 210 can face the elastic sealing portion 120. When the fuel cell experiences purging port blockage or internal hydrogen flash explosion, the pressure inside the fuel cell tank increases, and the elastic sealing portion 120... The pressure relief spike 220 will protrude downwards and touch the pressure relief spike 220. When the pressure inside the chamber increases to a certain value, the elastic sealing part 120 will protrude downwards, causing the pressure relief spike 220 to pierce the elastic sealing part 120. The elastic sealing part 120 will then create a ventilation gap, allowing the vent 110 to connect with the external space through the ventilation gap. This allows the gas inside the chamber to flow through the vent 110 and the ventilation gap to be discharged to the outside, achieving the purpose of venting and depressurizing the fuel cell, protecting the chamber and internal components, and ensuring the integrity of the internal components of the fuel cell.

[0039] The above are merely preferred embodiments of this 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 this utility model, and these improvements and substitutions should also be considered within the protection scope of this utility model.

Claims

1. A fuel cell housing liquid level observation device, for installation on the fuel cell housing, characterized in that, include: An observation cover and a support are provided; both the observation cover and the support are connected to the fuel cell housing; wherein, the top of the observation cover is provided with a vent for communicating with the interior of the fuel cell housing; the bottom of the observation cover is provided with an elastic sealing part; the support is provided with a support beam located below the elastic sealing part, and the side of the support beam facing the elastic sealing part is provided with a pressure relief spike, which is used to puncture the elastic sealing part; when the pressure relief spike punctures the elastic sealing part, the elastic sealing part creates a ventilation gap, so that the vent communicates with the external space through the ventilation gap.

2. The fuel cell tank liquid level observation device according to claim 1, characterized in that, The pressure relief spike is a V-shaped spike.

3. The fuel cell tank liquid level observation device according to claim 1, characterized in that, The observation cover has a mounting part on its top outer edge, which is used to connect to the fuel cell housing.

4. The fuel cell tank liquid level observation device according to claim 3, characterized in that, The mounting section is provided with multiple mounting holes for connecting to the fuel cell housing.

5. The fuel cell tank liquid level observation device according to claim 4, characterized in that, The bracket is provided with a connecting part, which abuts against the mounting part, and the connecting part is provided with a connecting hole corresponding to the mounting hole. The bracket and the observation cover are connected to the fuel cell housing by fasteners passing through the connecting hole and the mounting hole.

6. The fuel cell tank liquid level observation device according to claim 5, characterized in that, The bracket also includes two connecting arms; the two connecting arms are located at both ends of the support beam, and each of the two connecting arms has a connecting part at the end closest to the mounting part.

7. The fuel cell tank liquid level observation device according to claim 6, characterized in that, The mounting part is circular in shape.

8. The fuel cell tank liquid level observation device according to claim 7, characterized in that, The two connecting portions are symmetrically arranged about the center of the mounting portion.

9. The fuel cell tank liquid level observation device according to claim 1, characterized in that, The observation cover is provided with a transparent window for observing the liquid level inside the fuel cell housing.

10. The fuel cell tank liquid level observation device according to claim 1, characterized in that, The bracket is provided with a connecting part, which is used to connect to the fuel cell housing.

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