CN214538375U - Hydrogen leakage monitoring device of fuel cell and fuel cell automobile - Google Patents
Hydrogen leakage monitoring device of fuel cell and fuel cell automobile Download PDFInfo
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- CN214538375U CN214538375U CN202120022128.3U CN202120022128U CN214538375U CN 214538375 U CN214538375 U CN 214538375U CN 202120022128 U CN202120022128 U CN 202120022128U CN 214538375 U CN214538375 U CN 214538375U
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Abstract
The utility model discloses a hydrogen leakage monitoring device of a fuel cell and a fuel cell automobile, wherein the hydrogen leakage monitoring device of the fuel cell comprises a sealing assembly, a monitoring collecting pipe and a hydrogen concentration sensor; the sealing assembly is provided with a sealing cavity for accommodating a hydrogen supply system; the monitoring collecting pipe is connected with the sealing assembly and is used for collecting hydrogen leaked by the hydrogen supply system; the hydrogen concentration sensor is arranged in the monitoring collecting pipe and used for measuring the concentration of the hydrogen in the monitoring collecting pipe. The technical scheme can accurately and quickly measure the hydrogen concentration leaked by the hydrogen supply system, improve the accuracy of detecting the hydrogen concentration leaked by the hydrogen supply system and improve the safety of a fuel cell automobile.
Description
Technical Field
The utility model relates to a fuel cell technical field especially relates to a fuel cell's hydrogen leakage monitoring devices and fuel cell car.
Background
The power source of the fuel cell automobile is a hydrogen supply system and a fuel cell, and the fuel cell and hydrogen provided by the hydrogen supply system are subjected to chemical reaction, so that the fuel cell automobile can obtain power. Because the hydrogen supply system has numerous interfaces, each interface has the risk of hydrogen leakage, the arrangement of the hydrogen supply system in the engine room is complex, the leaked hydrogen is easy to generate aggregation, and the leaked hydrogen is easy to explode when the concentration of the leaked hydrogen in the engine room reaches 2 percent, thereby causing serious potential safety hazard.
Currently, hydrogen leakage is monitored by deploying a hydrogen concentration sensor within the nacelle. However, the number of potential leakage points of the hydrogen supply system is large (much larger than the number of the hydrogen concentration sensors), the flow field of the engine room is extremely complex, and hydrogen leaked from some potential leakage points may not be sensed by the hydrogen concentration sensors, so that the hydrogen cannot be captured, and still has serious potential safety hazards.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a fuel cell's hydrogen leakage monitoring devices and fuel cell car to the hydrogen that leaks in solving the cabin causes the problem of potential safety hazard to the fuel cell car.
The embodiment provides a hydrogen leakage monitoring device of a fuel cell, which is suitable for a hydrogen supply system of the fuel cell and comprises a sealing assembly, a monitoring collecting pipe and a hydrogen concentration sensor; a sealing cavity for accommodating the hydrogen supply system is arranged in the sealing assembly; the monitoring collecting pipe is connected with the sealing assembly and is used for collecting hydrogen leaked by the hydrogen supply system; the hydrogen concentration sensor is arranged in the monitoring collecting pipe and used for measuring the concentration of the hydrogen in the monitoring collecting pipe.
Further, the hydrogen supply system comprises a hydrogen supply assembly and a hydrogen supply pipeline;
the sealing assembly comprises a sealing shell and a shell connecting pipe connected with the sealing shell; an assembly sealing cavity for accommodating the hydrogen supply assembly is arranged on the sealing shell; and the shell connecting pipe is provided with a pipeline sealing cavity for accommodating the hydrogen supply pipeline.
Further, the sealing shell comprises an upper shell, a lower shell, a sealing ring and a sealing buckle;
the sealing ring is arranged on the contact surface of the upper shell and the lower shell;
the sealing buckle clamps the upper shell, the sealing ring and the lower shell to form an assembly sealing cavity.
Furthermore, an upper connecting hole is formed in the upper shell, a lower connecting hole is formed in the lower shell, and a connecting through hole is formed in the sealing ring; the sealing buckle is clamped on the upper connecting hole, the lower connecting hole and the connecting through hole.
Further, the sealing buckle comprises a buckle body, a buckle connecting part extending out of one side of the buckle body, and a clamping tongue extending from the tail end of the buckle connecting part to the direction of the buckle body;
the bottom of the buckle body is provided with an annular clamping groove, the inner diameter of the annular clamping groove is smaller than the diameter of the lower connecting hole, and the outer diameter of the annular clamping groove is larger than the diameter of the lower connecting hole.
Furthermore, an upper clamping groove is formed in the upper shell, a lower clamping groove is formed in the lower shell, and an upper protrusion matched with the upper clamping groove and a lower protrusion matched with the lower clamping groove are formed in the sealing ring.
Further, the upper clamping groove is arranged at the edge of the upper shell; the lower clamping groove is formed in the edge of the lower shell.
Furthermore, a connecting interface is arranged on the sealing shell and is in threaded connection with the shell connecting pipe.
Furthermore, a measuring cavity is arranged inside the monitoring collecting pipe; the hydrogen concentration sensor is disposed in the measurement cavity.
A fuel cell automobile comprises a hydrogen supply system of a fuel cell, and a hydrogen leakage monitoring device of the fuel cell.
The embodiment of the utility model provides a fuel cell's hydrogen leakage monitoring devices and fuel cell car, be equipped with the seal chamber who is used for holding the hydrogen supply system on the seal assembly, can prevent that the hydrogen supply system leaked from spilling over to the cabin, avoid the hydrogen concentration in the cabin too high and have explosion risk, improve the security of fuel cell car; the monitoring collecting pipe is connected with the sealing assembly and used for collecting hydrogen leaked by the hydrogen supply system, and the hydrogen leaked by the hydrogen supply system can be quickly and reliably collected; the hydrogen concentration sensor is arranged in the monitoring collecting pipe and used for measuring the concentration of hydrogen in the monitoring collecting pipe, the concentration of the hydrogen leaked by the hydrogen supply system can be accurately and quickly measured, the accuracy of detecting the concentration of the hydrogen leaked by the hydrogen supply system is improved, the concentration of the hydrogen leaked by the hydrogen supply system can be accurately monitored by adopting a small amount of hydrogen concentration sensors, and the use cost of the hydrogen concentration sensors is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural view of a hydrogen leakage monitoring device for a fuel cell according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a seal assembly according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of the seal assembly of FIG. 2;
fig. 4 is a schematic view illustrating an assembly relationship between the sealing buckle and the sealing housing according to an embodiment of the present invention.
In the figure, 10, a hydrogen supply system; 11. a hydrogen supply assembly; 12. a hydrogen supply line;
20. a seal assembly; 21. sealing the housing; 211. an upper housing; 2111. an upper clamping groove; 212. a lower housing; 2121. a lower clamping groove; 213. a seal ring; 2131. an upper bulge; 2132. a lower bulge; 214. sealing the buckle; 2141. a buckle body; 2142. a snap connection; 2143. a latch; 2144. an annular neck; 215. connecting an interface; 22. a housing connection pipe;
30. monitoring the collecting pipe; 31. a measurement cavity;
40. a hydrogen concentration sensor.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to further explain the present invention in detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and to simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present embodiment provides a hydrogen leakage monitoring device for a fuel cell, as shown in fig. 1, which is suitable for a hydrogen supply system 10 of a fuel cell, and includes a sealing assembly 20, a monitoring collecting pipe 30 and a hydrogen concentration sensor 40; the sealing assembly 20 is provided with a sealing cavity for accommodating the hydrogen supply system 10; the monitoring collecting pipe 30 is connected with the sealing assembly 20 and is used for collecting hydrogen leaked from the hydrogen supply system 10; a hydrogen concentration sensor 40 is provided in the monitoring header 30 for measuring the concentration of hydrogen gas in the monitoring header 30.
The hydrogen supply system 10 is a system for supplying hydrogen to a fuel cell vehicle, and includes a hydrogen supply assembly 11 and a hydrogen supply pipeline 12. The hydrogen supply assembly 11 includes, but is not limited to, a gas cylinder, a pressure gauge, a pressure reducer, and a valve.
In this example, a sealed cavity is provided in the sealing assembly 20 for accommodating the hydrogen supply system 10, and it can be understood that the sealing assembly 20 is equivalent to completely wrapping the hydrogen supply system 10, and when the hydrogen supply system 10 leaks hydrogen, the leaked hydrogen is filled in the sealed cavity to prevent the hydrogen leaked from the hydrogen supply system 10 from overflowing to the cabin, so as to avoid that the hydrogen concentration in the cabin is too high and explosion occurs under the influence of an electric arc released by an electrical connector in the cabin, thereby improving the safety of the fuel cell vehicle.
In this example, a monitoring manifold 30 is coupled to the seal stack 20 for collecting hydrogen gas leaking from the hydrogen supply system 10. It should be noted that, since the density of hydrogen is lower than that of air, the monitoring manifold 30 is disposed at a higher position in the cabin than the seal assembly 20 so as to collect hydrogen leaked from the hydrogen supply system 10.
In this example, the hydrogen concentration sensor 40 is disposed inside the monitoring header 30, when hydrogen leaks, since the hydrogen supply system 10 is accommodated in the sealing cavity of the sealing assembly 20, and the sealing cavity is connected to the monitoring header 30, therefore, the hydrogen leaked from the hydrogen supply system 10 can only be collected in the monitoring header 30, and the hydrogen concentration sensor 40 disposed in the monitoring header 30 can accurately and rapidly measure the concentration of the hydrogen leaked from the hydrogen supply system 10, thereby improving the accuracy of detecting the concentration of the leaked hydrogen. It should be noted that, the hydrogen concentration sensor 40 in the monitoring header 30 is used to monitor the hydrogen gas leaked from the hydrogen supply system 10, only one hydrogen concentration sensor 40 is needed to accurately monitor the hydrogen gas leaked from the hydrogen supply system 10, and the hydrogen concentration sensors 40 are not needed to be respectively arranged at different leakage points, so that the use cost of the hydrogen concentration sensor 40 can be reduced.
In this embodiment, the sealing assembly 20 is provided with a sealing cavity for accommodating the hydrogen supply system 10, so that hydrogen leaked from the hydrogen supply system 10 can be prevented from overflowing into the cabin, the risk of explosion caused by too high hydrogen concentration in the cabin is avoided, and the safety of the fuel cell vehicle is improved; the monitoring collecting pipe 30 is connected with the sealing assembly 20 and is used for collecting hydrogen leaked by the hydrogen supply system 10, so that the hydrogen leaked by the hydrogen supply system 10 can be quickly and reliably collected; the hydrogen concentration sensor 40 is arranged in the monitoring collecting pipe 30 and used for measuring the concentration of hydrogen in the monitoring collecting pipe 30, the leaked hydrogen concentration can be accurately and quickly measured, the accuracy of detecting the hydrogen concentration leaked by the hydrogen supply system 10 is improved, the hydrogen concentration leaked by the hydrogen supply system 10 can be accurately monitored by adopting a small amount of hydrogen concentration sensors 40, and the use cost of the hydrogen concentration sensors 40 is reduced.
In one embodiment, as shown in fig. 1, the hydrogen supply system 10 includes a hydrogen supply assembly 11 and a hydrogen supply line 12; the seal assembly 20 includes a seal housing 21 and a housing connection pipe 22 connected to the seal housing 21; an assembly sealing cavity for accommodating the hydrogen supply assembly 11 is arranged on the sealing shell 21; the housing connection pipe 22 is provided with a pipe seal cavity for accommodating the hydrogen supply pipe 12.
As an example, the sealing assembly 20 includes a sealing housing 21 and a housing connecting pipe 22 connected to the sealing housing 21, and an assembly sealing cavity for accommodating the hydrogen supply assembly 11 is provided on the sealing housing 21. For example, the hydrogen supply assembly 11 includes, but is not limited to, a gas cylinder, a pressure gauge, a pressure reducer, and a valve, and a sealed housing 21 is disposed on the hydrogen supply assembly 11 formed by the gas cylinder, the pressure gauge, the pressure reducer, and the valve, and one or more sealed housings 21 may be provided.
As another example, since the hydrogen supply assemblies 11 are connected by the hydrogen supply pipeline 12, in order to ensure accurate collection of the hydrogen gas leaked from the hydrogen supply system 10, the sealed housing 21 is disposed on the hydrogen supply assembly 11 of the hydrogen supply system 10, and the housing connection pipe 22 is disposed on the hydrogen supply pipeline 12 of the hydrogen supply system 10, and the housing connection pipe 22 receives the hydrogen supply pipeline 12 through the pipeline sealed cavity, so that the hydrogen gas leaked from the hydrogen supply system 10 is concentrated into the sealed housing 21 and the housing connection pipe 22. It should be noted that the assembly seal cavity in the seal housing 21 and the pipeline seal cavity in the housing connecting pipe 22 are combined to form a seal cavity, so as to prevent the hydrogen leaked from the hydrogen supply system 10 from overflowing into the cabin, and avoid the risk of explosion due to too high hydrogen concentration in the cabin.
In one embodiment, as shown in fig. 2, the sealing housing 21 includes an upper housing 211, a lower housing 212, a sealing ring 213, and a sealing clip 214; a packing 213 is provided on a contact surface between the upper case 211 and the lower case 212; the sealing clip 214 is used to clamp the upper housing 211, the sealing ring 213 and the lower housing 212 to form an assembly sealing cavity.
Wherein, the upper housing 211 and the lower housing 212 may be made of hard PC plastic; seal 213 may be a silicone seal 213; the catch may be a plastic catch.
As an example, the sealing ring 213 is disposed on a contact surface between the upper housing 211 and the lower housing 212, and is used to increase a sealing effect of the contact surface between the upper housing 211 and the lower housing 212, and improve the sealing performance of the sealing housing 21. The sealing clip 214 is used for clamping the upper housing 211, the sealing ring 213 and the lower housing 212, so that the upper housing 211, the sealing ring 213 and the lower housing 212 are matched to form an assembly sealing cavity. It can be appreciated that the sealing clip 214 can clip the upper housing 211, the sealing ring 213 and the lower housing 212, thereby improving the sealing performance and reliability of the sealing cavity of the assembly.
In one embodiment, in order to form an assembly sealed cavity with good sealing performance by the upper housing 211, the sealing ring 213 and the lower housing 212, the upper housing 211 is provided with an upper connecting hole, the lower housing 212 is provided with a lower connecting hole, and the sealing ring 213 is provided with a connecting through hole. The sealing buckle 214 penetrates through the upper connecting hole, the lower connecting hole and the connecting through hole to clamp the upper shell 211, the sealing ring 213 and the lower shell 212 so as to form an assembly sealing cavity, and the sealing performance and the reliability of the assembly sealing cavity are improved.
In this example, the sealing clip 214 includes a clip body 2141, a clip connecting portion 2142 extending from one side of the clip body 2141, and a clip tongue 2143 extending from the end of the clip connecting portion 2142 to the direction of the clip body 2141, wherein an annular clip groove 2144 is disposed at the bottom of the clip body 2141. The latch 2143 is fastened to the upper housing 211 through the upper coupling hole, and achieves insertion installation and a fastening effect by deformation and restoration of the latch 2143. An annular snap 2144 is disposed in the lower attachment hole to snap-fit the lower housing 212. In the present embodiment, the latch 2143 cooperates with the ring-shaped latch groove 2144 to latch the upper housing 211, the sealing ring 213 and the lower housing 212 together to form an assembly sealing cavity.
In this example, the inside diameter of ring groove 2144 is smaller than the diameter of the lower connection hole, and the outside diameter of ring groove 2144 is larger than the diameter of the lower connection hole for chucking lower housing 212.
In the embodiment, the sealing latch 214 includes a latch body 2141, a latch connecting portion 2142 extending from one side of the latch body 2141, and a latch 2143 extending from the end of the latch connecting portion 2142 toward the latch body 2141; the bottom of the buckle body 2141 is provided with a ring groove 2144, the inner diameter of the ring groove 2144 is smaller than the diameter of the lower connecting hole, the outer diameter of the ring groove 2144 is larger than the diameter of the lower connecting hole, the clamping tongue 2143 is matched with the ring groove 2144 to clamp the upper housing 211, the sealing ring 213 and the lower housing 212 so as to form an assembly sealing cavity, and the sealing performance and the reliability of the assembly sealing cavity are improved.
In one embodiment, in order to improve the sealing performance of the contact surface between the upper housing 211 and the lower housing 212, an upper clamping groove 2111 is provided on the upper housing 211, and a lower clamping groove 2121 is provided on the lower housing 212; meanwhile, the sealing ring 213 is provided with an upper protrusion 2131 matched with the upper notch 2111 and a lower protrusion 2132 matched with the lower notch 2121, that is, the surface of the sealing ring 213 opposite to the upper housing 211 is provided with an upper protrusion 2131 matched with the upper notch 2111, and the surface of the sealing ring 213 opposite to the lower housing 212 is provided with a lower protrusion 2132 matched with the lower notch 2121. It will be appreciated that the upper protrusion 2131 of the seal 213 mates with the upper notch 2111 and the lower protrusion 2132 mates with the lower notch 2121, improving the sealing of the interface between the seal 213 and the upper and lower housings 211, 212.
In this embodiment, the upper housing 211 is provided with an upper locking slot 2111, the lower housing 212 is provided with a lower locking slot 2121, and the sealing ring 213 is provided with an upper protrusion 2131 matched with the upper locking slot 2111 and a lower protrusion 2132 matched with the lower locking slot 2121, so as to solve the problem that the sealing performance of the contact surface between the upper housing 211 and the lower housing 212 is not sufficient, and improve the sealing performance of the contact surface between the upper housing 211 and the lower housing 212.
In one embodiment, upper card slot 2111 is provided at an edge of upper housing 211; the lower clamping groove 2121 is arranged at the edge of the lower shell 212, so that the upper protrusion 2131 is matched with the upper clamping groove 2111, and the larger the contact area enclosed by the lower protrusion 2132 and the lower clamping groove 2121 is, the sealing effect is ensured, and the sealing performance of the assembly sealing cavity is improved.
In an embodiment, the sealing housing 21 is provided with the connection interface 215, and the connection interface 215 is in threaded connection with the housing connection pipe 22, so as to ensure the sealing property of the connection between the sealing housing 21 and the housing connection pipe 22, prevent hydrogen leaked from the hydrogen supply system 10 from overflowing into the engine room, cause potential safety hazards, and improve the safety of the fuel cell vehicle. For example, an external thread may be provided on the connection interface 215, and an internal thread may be provided on the housing connection pipe 22, so that the connection interface 215 and the housing connection pipe 22 are screwed together, and the tightness of the connection therebetween is ensured.
In an embodiment, the measuring cavity 31 is disposed inside the monitoring collecting pipe 30, the hydrogen concentration sensor 40 is disposed in the measuring cavity 31, and when the hydrogen leaked from the hydrogen supply system 10 passes through the measuring cavity 31, the hydrogen concentration sensor 40 in the measuring cavity 31 can accurately measure the concentration of the hydrogen leaked from the hydrogen supply system 10, thereby improving the accuracy of measuring the concentration of the hydrogen leaked from the hydrogen supply system 10.
The present embodiment also provides a fuel cell vehicle, which includes a hydrogen supply system 10 of a fuel cell, and further includes a hydrogen leakage monitoring device of the fuel cell in the above embodiments.
In the embodiment, when hydrogen in the hydrogen supply system 10 in the fuel cell vehicle leaks, the hydrogen leakage monitoring device can timely and accurately acquire the concentration of the hydrogen leaked from the hydrogen supply system 10, so that the safety of the fuel cell vehicle is improved.
The above-mentioned embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. A hydrogen leakage monitoring device of a fuel cell is suitable for a hydrogen supply system of the fuel cell and is characterized by comprising a sealing assembly, a monitoring collecting pipe and a hydrogen concentration sensor; a sealing cavity for accommodating the hydrogen supply system is arranged in the sealing assembly; the monitoring collecting pipe is connected with the sealing assembly and is used for collecting hydrogen leaked by the hydrogen supply system; the hydrogen concentration sensor is arranged in the monitoring collecting pipe and used for measuring the concentration of the hydrogen in the monitoring collecting pipe.
2. The hydrogen leakage monitoring device of the fuel cell according to claim 1, wherein the hydrogen supply system includes a hydrogen supply assembly and a hydrogen supply line;
the sealing assembly comprises a sealing shell and a shell connecting pipe connected with the sealing shell; an assembly sealing cavity for accommodating the hydrogen supply assembly is arranged on the sealing shell; and the shell connecting pipe is provided with a pipeline sealing cavity for accommodating the hydrogen supply pipeline.
3. The hydrogen leakage monitoring device of a fuel cell according to claim 2, wherein the seal case includes an upper case, a lower case, a seal ring, and a seal clip;
the sealing ring is arranged on the contact surface of the upper shell and the lower shell;
the sealing buckle clamps the upper shell, the sealing ring and the lower shell to form an assembly sealing cavity.
4. A hydrogen leakage monitoring device of a fuel cell according to claim 3, wherein an upper connecting hole is provided on the upper case, a lower connecting hole is provided on the lower case, and a connecting through hole is provided on the seal ring; the sealing buckle is clamped on the upper connecting hole, the lower connecting hole and the connecting through hole.
5. The hydrogen leakage monitoring device according to claim 4, wherein the sealing clip includes a clip body, a clip connecting portion extending from a side of the clip body, and a clip tongue extending from a distal end of the clip connecting portion toward the clip body;
the bottom of the buckle body is provided with an annular clamping groove, the inner diameter of the annular clamping groove is smaller than the diameter of the lower connecting hole, and the outer diameter of the annular clamping groove is larger than the diameter of the lower connecting hole.
6. The hydrogen leakage monitoring device for a fuel cell according to claim 4, wherein an upper engaging groove is provided on the upper case, a lower engaging groove is provided on the lower case, and an upper protrusion that fits in the upper engaging groove and a lower protrusion that fits in the lower engaging groove are provided on the seal ring.
7. The hydrogen leakage monitoring device of the fuel cell according to claim 6, wherein the upper notch is provided at an edge of the upper case; the lower clamping groove is formed in the edge of the lower shell.
8. The hydrogen leakage monitoring device of a fuel cell according to claim 2, wherein a connection port is provided on the sealed housing, and the connection port is screwed with the housing connection pipe.
9. A hydrogen leakage monitoring device for a fuel cell according to claim 1, wherein a measuring chamber is provided inside the monitoring manifold; the hydrogen concentration sensor is disposed in the measurement cavity.
10. A fuel cell vehicle comprising a hydrogen supply system of a fuel cell, characterized by further comprising a hydrogen leakage monitoring device of the fuel cell according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120022128.3U CN214538375U (en) | 2021-01-04 | 2021-01-04 | Hydrogen leakage monitoring device of fuel cell and fuel cell automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120022128.3U CN214538375U (en) | 2021-01-04 | 2021-01-04 | Hydrogen leakage monitoring device of fuel cell and fuel cell automobile |
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| CN214538375U true CN214538375U (en) | 2021-10-29 |
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| CN202120022128.3U Active CN214538375U (en) | 2021-01-04 | 2021-01-04 | Hydrogen leakage monitoring device of fuel cell and fuel cell automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864643A (en) * | 2021-10-30 | 2021-12-31 | 重庆长安新能源汽车科技有限公司 | Hydrogen seal structure in car |
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2021
- 2021-01-04 CN CN202120022128.3U patent/CN214538375U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864643A (en) * | 2021-10-30 | 2021-12-31 | 重庆长安新能源汽车科技有限公司 | Hydrogen seal structure in car |
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