Vehicle-mounted hydrogen system and rapid hydrogen replacement method thereof

Abstract

The application discloses a vehicle-mounted hydrogen system and a quick hydrogen replacement method thereof, and belongs to the hydrogen storage and hydrogen supply field.The vehicle-mounted hydrogen system comprises a first storage body, an integrated valve, a locking and separating device and a first storage body suitable for containing a hydrogen storage bottle; a quick male connector is arranged on a connecting port of the hydrogen storage bottle; the integrated valve is fixedly installed in the first storage body, a hydrogen outlet of the integrated valve is communicated with a hydrogen fuel cell stack, and a quick female connector is arranged on a connecting port of the integrated valve; the quick female connector is provided with an opening and closing sliding sleeve suitable for cooperating with the quick male connector; and the locking and separating device comprises a push rod arranged outside the first storage body and a sliding block fixedly connected with the push rod and suitable for pushing the opening and closing sliding sleeve to move away from one end of the quick male connector.The hydrogen pipeline design of the vehicle-mounted hydrogen system maximally simplifies a hydrogen supply pipeline, further improves safety performance, reduces production cost, is faster in replacement efficiency and improves user experience.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of hydrogen storage and supply, and particularly relates to a vehicle-mounted hydrogen system and a quick hydrogen replacement method thereof. BACKGROUND

[0002] The vehicle-mounted hydrogen system on the market is relatively complex, and it takes professional personnel tens of seconds to complete hydrogen cylinder replacement. In the past, the hydrogen pipeline design from the hydrogen cylinder to the fuel cell stack has multiple bending sections to form a continuous bending flow path. Each connection point of the pipeline on the vehicle-mounted hydrogen supply system may reduce or affect the safety performance under long-time vibration of the vehicle.

[0003] Therefore, it is beneficial to improve the safety performance of the vehicle-mounted hydrogen supply system by reducing the connection points of the hydrogen pipeline as much as possible. In addition, the current vehicle-mounted hydrogen supply system also has problems such as high production cost and insufficient safety protection of the gas tightness of the hydrogen pipeline. SUMMARY

[0004] In order to overcome the above technical defects, the application provides a vehicle-mounted hydrogen system and a quick hydrogen replacement method thereof to solve the problems in the background art.

[0005] The application provides a vehicle-mounted hydrogen system, comprising:

[0006] A first storage body is a containing cavity with at least one open end face, which is suitable for containing a hydrogen storage cylinder; a connecting port of the hydrogen storage cylinder is provided with a quick male connector;

[0007] An integrated valve assembly is fixedly installed on the inside of the first storage body away from the open end face, a hydrogen outlet thereof is connected with a hydrogen fuel cell stack, and a connecting port thereof is provided with a quick female connector; the quick female connector is provided with an opening and closing sliding sleeve suitable for cooperating with the quick male connector.

[0008] A locking and disengaging device comprises a push rod arranged on the outside of the first storage body and a sliding block fixedly connected with the push rod and suitable for pushing the opening and closing sliding sleeve to move away from one end of the quick male connector.

[0009] Preferably or optionally, the inside of the first storage body is further provided with an annular sleeve with a smooth inner surface; and the hydrogen storage cylinder is inserted into the inside of the annular sleeve.

[0010] Preferably or optionally, the outside of the annular sleeve is further provided with an electric heating device, and the annular sleeve is made of a material with high thermal conductivity.

[0011] Preferably or optionally, the outside of the first storage body is further sleeved with a second storage body.

[0012] A storage cover is further arranged on the tail end face of the second storage body.

[0013] Preferably or optionally, the inner surface of the cover is provided with a reinforcing rib.

[0014] When the cover is in the closed state, the reinforcing rib abuts against the bottom of the hydrogen storage bottle.

[0015] Preferably or optionally, the locking and disengaging device comprises:

[0016] A plurality of mounting members are fixedly mounted inside the second cartridge body;

[0017] A push rod is slidingly mounted between the mounting members and extends from the closed end of the second cartridge body to the open end surface of the second cartridge body;

[0018] A slider is fixedly mounted on the upper part of the push rod and is clamped on the outer edge of the opening and closing sleeve;

[0019] A reset elastic member maintains the slider in a state of disengagement from the opening and closing sleeve;

[0020] A button is arranged on the tail end surface of the second cartridge body and drives the opening and closing sleeve to move towards the side close to the integrated valve assembly through the push rod and the slider.

[0021] Preferably or optionally, the integrated valve assembly comprises at least one of a pressure reducing valve, a safety valve or a control valve.

[0022] The application also provides a quick hydrogen replacement method based on the vehicle-mounted hydrogen system, the method comprising:

[0023] S1. Open the cover, press the button, and the hydrogen storage bottle is ejected from the first cartridge body;

[0024] S2. Take out the hydrogen storage bottle;

[0025] S3. Insert the hydrogen storage bottle filled with hydrogen into the first cartridge body, gently push it forward, and lock it in place;

[0026] S4. Complete the hydrogen replacement.

[0027] Preferably or optionally, the method further comprises:

[0028] Open the cover, press the button, and drive the opening and closing sleeve to move towards the side close to the integrated valve assembly through the push rod and the slider, so that the quick-connect male connector and the quick-connect female connector are separated, and the hydrogen storage bottle is taken out.

[0029] Preferably or optionally, the method further comprises:

[0030] Insert the hydrogen storage bottle filled with hydrogen into the first cartridge body, gently push it forward, and install the quick-connect male connector of the hydrogen storage bottle on the quick-connect female connector of the integrated valve assembly to achieve automatic docking and locking, and complete the hydrogen replacement.

[0031] The present application relates to a vehicle-mounted hydrogen system and a quick hydrogen replacement method thereof, and has the following beneficial effects compared with the prior art:

[0032] 1. The hydrogen pipeline design of the vehicle-mounted hydrogen system maximally simplifies the hydrogen supply pipeline, further improves the safety performance, reduces the production cost, is faster in replacement efficiency, and improves the user experience.

[0033] 2. The present application sets the pressure reducing valve assembly on the vehicle, and only sets the safety valve and the gas inlet and outlet on the hydrogen cylinder, which not only reduces the weight of the cylinder, but also can be widely used in multiple scenes, and the hydrogen filling can be completed within 2-3 seconds, and has the advantages of low cost and good safety.

[0034] 3. The simplified hydrogen storage cylinder reduces the space occupied by the pressure reducing valve assembly or integrated valve assembly, and the function integration reduces the bending use of the hydrogen pipeline, further saves the layout space, makes the vehicle-mounted hydrogen supply system more compact, and has higher space utilization. BRIEF DESCRIPTION OF DRAWINGS

[0035] Fig. 1 is the external structure diagram of the vehicle-mounted hydrogen system in the present application.

[0036] Fig. 2 is the explosion structure diagram of the vehicle-mounted hydrogen system in the present application.

[0037] Fig. 3 is the cross-sectional view of the vehicle-mounted hydrogen system in the present application.

[0038] The reference signs are:

[0039] 100, first bin body; 110, upper part; 120, lower part; 130, open end face; 121, mounting step;

[0040] 200, hydrogen storage cylinder; 210, quick mounting male connector; 310, integrated valve assembly; 320, quick mounting female connector; 410, annular sleeve; 420, electric heating device;

[0041] 500, second bin body; 510, tail end face; 520, bin cover; 522, mechanical lock; 523, tail light; 530, bottom plate;

[0042] 600, locking and disengaging device; 610, mounting piece; 620, push rod; 630, sliding block; 640, reset elastic piece; 650, button. DETAILED DESCRIPTION

[0043] In the following description, numerous specific details are set forth to provide a more thorough understanding of the present application. However, it will be apparent to one of skill in the art upon

[0044] Reference will now be made to the drawings, wherein Figs. 1 to 3 A vehicle-mounted hydrogen system includes a first housing 100, a second housing 500, an integrated valve assembly 310, a locking and disengaging device 600, and a hydrogen storage cylinder 200.

[0045] The first housing 100 includes an upper half 110 and a lower half 120, forming an open-ended cavity suitable for accommodating the hydrogen storage cylinder 200. The connection port of the hydrogen storage cylinder 200 is provided with a quick-connect male connector 210. In addition, to ensure the safety performance of the hydrogen storage cylinder 200, a safety valve can be provided between the quick-connect male connector 210 and the connection port of the hydrogen storage cylinder 200.

[0046] A mounting step 121 is provided on the side of the lower half 120 of the first housing 100 away from the open end surface 130, for mounting the integrated valve assembly 310, so that the connection port of the integrated valve assembly 310 is on the same horizontal axis as the connection port of the hydrogen storage cylinder 200. The hydrogen outlet of the integrated valve assembly 310 is connected to a hydrogen fuel cell stack, and the connection port of the integrated valve assembly 310 is provided with a quick-connect female connector 320. The quick-connect female connector 320 is provided with a gas path opening and closing sleeve suitable for cooperating with the quick-connect male connector 210. When the opening and closing sleeve is close to the integrated valve assembly 310, the quick-connect female connector 320 automatically ejects the quick-connect male connector 210; when the opening and closing sleeve is away from the integrated valve assembly 310, the quick-connect male connector 210 is clamped inside the quick-connect female connector 320, forming a stable transmission path.

[0047] In this embodiment, the integrated valve assembly 310 is a pressure reducing assembly, mainly realizing the function of pressure reduction. However, for those skilled in the art, the integrated valve assembly 310 is a collection of one or more of pressure reducing valves, safety valves, or control valves.

[0048] The structure of the quick-connect female connector 320 and the quick-connect male connector 210 in this application is a common gas-tight connector on the market, and its structure is not specifically limited here.

[0049] The locking and disengaging device 600 includes a push rod 620 provided on the outside of the first housing 100 and extending to the outside of the open end surface 130 of the first housing 100, and a sliding block 630 fixedly connected to the push rod 620 and suitable for pushing the opening and closing sleeve to move away from the quick-connect male connector 210.

[0050] The first storage body 100 is further sleeved with a second storage body 500, which mainly plays a supporting role. The second storage body 500 is installed on the hydrogen-powered vehicle through a bottom plate 530. The tail end surface 510 of the second storage body 500 is aligned with the open end surface 130 of the first storage body 100. A storage cover 520 is further arranged on the tail end surface 510 of the second storage body 500. A reinforcing rib is arranged on the inner surface of the storage cover 520. A mechanical lock 522 and a tail lamp 523 and other devices are further arranged on the storage cover 520, which will not be described in detail here. When the storage cover 520 is in a closed state, the reinforcing rib abuts against the bottom of the hydrogen storage bottle 200, so as to keep the hydrogen storage bottle 200 installed in conformity with the installation requirements.

[0051] Specifically, the locking and disengaging device 600 is arranged in the interlayer of the first storage body 100 and the second storage body 500. The locking and disengaging device 600 comprises a plurality of mounting members 610, a push rod 620, a sliding block 630, a reset elastic member 640 and a button 650. The plurality of mounting members 610 are fixedly installed inside the second storage body 500. The push rod 620 is slidingly installed between the mounting members 610. The push rod 620 extends from the closed end of the second storage body 500 to the open end surface 130 of the second storage body 500. The upper part of the sliding block 630 is fixedly installed on the push rod 620, and the lower part of the sliding block 630 is clamped on the outer edge of the opening and closing sleeve. The reset elastic member 640 keeps the sliding block 630 in a state of disengagement from the opening and closing sleeve. The button 650 is arranged on the tail end surface 510 of the second storage body 500. The opening and closing sleeve is driven to move towards the side close to the integrated valve assembly 310 through the push rod 620 and the sliding block 630.

[0052] In a further embodiment, an annular sleeve 410 with a smooth inner surface is further arranged inside the first storage body 100. The annular sleeve 410 is made of aluminum material, and the roughness of the inner surface thereof is Ra1.6. The gap distance between the annular sleeve 410 and the single side of the hydrogen storage bottle 200 is controlled to be between 0.15 and 0.25 mm. When the hydrogen storage bottle 200 is inserted into the annular sleeve 410, the hydrogen storage bottle 200 is aligned with the integrated valve assembly 310. When the quick-mounting male connector 210 is ejected, the hydrogen storage bottle 200 can be ejected along the annular sleeve 410, so as to facilitate the disassembly and assembly of the hydrogen storage bottle 200.

[0053] In addition, the outer part of the annular sleeve 410 is provided with an electric heating device 420, which is an electric heating paper and is adhered to the outer surface of the annular sleeve 410 by an adhesive, and a plurality of annular reinforcing ribs are arranged in the interior of the second cartridge body 500, which further ensure the adhesion of the electric heating paper to the annular sleeve 410 and realize the heating of the hydrogen storage bottle 200. In this way, the hydrogen storage bottle 200 can be installed and removed without being affected by the heating film, and the convenience of the hydrogen storage bottle 200 is improved.

[0054] For the convenience of understanding the technical scheme of the vehicle-mounted hydrogen system, the quick hydrogen replacement method is briefly described as follows: the user opens the cover 520 and presses the button 650, and the push rod 620 and the sliding block 630 drive the opening and closing sleeve to move towards the side close to the integrated valve assembly 310, so that the quick male connector 210 and the quick female connector 320 are separated, and the hydrogen storage bottle 200 is taken out; the hydrogen storage bottle 200 filled with hydrogen is inserted into the first cartridge body 100, and is pushed forward to install the quick male connector 210 of the hydrogen storage bottle 200 on the quick female connector 320 of the integrated valve assembly 310 to realize automatic docking and locking, and the hydrogen replacement is completed.

[0055] In addition, it should be noted that each specific technical feature described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present application will not further describe various possible combinations.

Claims

1. An on-board hydrogen system, characterized by, The application relates to a hydrogen storage bottle quick-change device for a hydrogen fuel cell vehicle, which comprises the following parts: a first container body, which is a cavity with an open end face at least at one end and is suitable for accommodating a hydrogen storage bottle; a connecting port of the hydrogen storage bottle is provided with a quick-mounting male connector; an integrated valve assembly, which is fixedly installed inside the first container body and away from the open end face at one side, a hydrogen outlet of the integrated valve assembly is connected with a hydrogen fuel cell stack, and a connecting port of the integrated valve assembly is provided with a quick-mounting female connector; the quick-mounting female connector is provided with an opening and closing sliding sleeve which is suitable for cooperating with the quick-mounting male connector; an inner surface of the first container body is further provided with a smooth annular sleeve; the hydrogen storage bottle is inserted into the annular sleeve; the annular sleeve is further provided with an electric heating device outside the annular sleeve, and the annular sleeve is made of a material with high heat conduction performance; the first container body is further provided with a second container body outside; and a container cover is further arranged on a tail end face of the second container body; a locking and separating device, which comprises a push rod arranged outside the first container body and a sliding block fixedly connected with the push rod and suitable for pushing the opening and closing sliding sleeve to move away from one end of the quick-mounting male connector; the locking and separating device further comprises: a plurality of mounting members fixedly installed inside the second container body; a push rod which is slidingly installed between the mounting members and extends from a closed end of the second container body to an open end face of the second container body; a sliding block, an upper part of which is fixedly installed on the push rod, and a lower part of which is clamped on an outer edge of the opening and closing sliding sleeve; a reset elastic member which keeps the sliding block in a state of being separated from the opening and closing sliding sleeve; a button arranged on the tail end face of the second container body, which drives the opening and closing sliding sleeve to move to a side close to the integrated valve assembly through the push rod and the sliding block.

2. The on-board hydrogen system according to claim 1, characterized by An inner surface of the container cover is provided with a reinforcing rib; When the container cover is in a closed state, the reinforcing rib abuts against a bottom of the hydrogen storage bottle.

3. A method for quick hydrogen exchange for a hydrogen system on board according to claim 1 or 2, characterized in that The method comprises the following steps: S1. opening the container cover, pressing the button, and ejecting the hydrogen storage bottle from the first container body; S2. taking out the hydrogen storage bottle; S3. inserting the hydrogen storage bottle full of hydrogen into the first container body, gently pushing forward, and locking in place; S4. completing hydrogen replacement.

4. The method of claim 3, wherein, The method further comprises the following steps: opening the container cover, pressing the button, driving the opening and closing sliding sleeve to move to a side close to the integrated valve assembly through the push rod and the sliding block, separating the quick-mounting male connector from the quick-mounting female connector, and taking out the hydrogen storage bottle.

5. The method of claim 3, wherein the method further comprises: The method further comprises the following steps: inserting the hydrogen storage bottle full of hydrogen into the first container body, gently pushing forward, and installing the quick-mounting male connector of the hydrogen storage bottle on the quick-mounting female connector of the integrated valve assembly, realizing automatic docking and locking, and completing hydrogen replacement.

Images