Hydrogenation port of fuel cell of electric vehicle

Abstract

The utility model discloses an electric automobile fuel cell hydrogenation port which comprises a valve body, a sealing washer is installed at the upper end position in the valve body, a sealing ring B is installed at the upper end position of the sealing washer, a protective cover is installed at the upper end position of the valve body, and a sealing ring C is installed at the lower end position of the valve body. A connecting rope is fixed to the outer wall of the valve body, a block body is fixed to the position, located on the outer wall, of the valve body, a spherical shaft body is connected to the interior of the block body in a sleeved mode, and a rubber sleeve is fixed to the end face of the outer side of the spherical shaft body. The sleeve connection plate moves in the rubber sleeve due to stretching of the connection cross bar, the stainless steel spring is extruded due to movement of the sleeve connection plate, meanwhile, the rubber sleeve and the spherical shaft body are used as circle center shafts to flexibly swing, the stainless steel spring releases elastic force to retract the connection rope into the inner position of the rubber sleeve, and through the flexible connection structure, the connection rope can be fixed to the inner position of the rubber sleeve. And the protective cover is not separated from the block body.

Description

Technical Field

[0001] The utility model belongs to the technical field related to the hydrogen filling port of an electric vehicle fuel cell, and particularly relates to a hydrogen filling port of an electric vehicle fuel cell. Background Technique

[0002] The hydrogen filling port of a fuel cell electric vehicle is an interface on the vehicle for filling hydrogen. Similar to the fuel filling port of a traditional fuel vehicle, the hydrogen filling port is usually located on one side of the vehicle, designed to enable the vehicle to conveniently connect to the hydrogen filling equipment. Generally, there are some safety designs inside the hydrogen filling port, such as a structure to prevent hydrogen leakage, and a device to detect the hydrogen pressure and temperature during the filling process. Overall, the design of the hydrogen filling port aims to ensure the safety and efficiency of the hydrogen filling process.

[0003] When the hydrogen filling port of an electric vehicle fuel cell is being filled with hydrogen, the protective cover needs to be opened. The protective cover is installed on the block through a connecting rope, and the other end of the connecting rope is fixed to the block. When the protective cover is taken too forcefully, it will damage the connection between the connecting rope and the block, causing the protective cover to fall inside the vehicle. Therefore, the market needs a new device to solve the current problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a hydrogen filling port of an electric vehicle fuel cell to solve the problems raised in the above background technique, that is, when the hydrogen filling port of an electric vehicle fuel cell is being filled with hydrogen, the protective cover needs to be opened. The protective cover is installed on the block through a connecting rope, and the other end of the connecting rope is fixed to the block. When the protective cover is taken too forcefully, it will damage the connection between the connecting rope and the block, causing the protective cover to fall inside the vehicle. Therefore, the market needs a new device to solve the current problems.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A hydrogen filling port of an electric vehicle fuel cell, including a valve body. Inside the valve body, a sealing gasket is installed at the upper end position. At the upper end position of the sealing gasket, a sealing ring B is installed. At the upper end position of the sealing ring B, a sealing ring A is installed. Inside the valve body, a filtering component is installed at the position above the middle. At the left and right end positions of the filtering component, component sealing rings are installed. At the lower end position of the filtering component, a valve seat sealing ring is installed. At the lower end position of the valve seat sealing ring, a tapered head sealing ring is installed. At the lower end position of the valve body, a valve seat A is installed. Inside the valve seat A, a spring seat is installed. Inside the spring seat, a sealing tapered head is installed. Inside the sealing tapered head, a spring A is arranged;

[0006] A protective cover is installed at the upper end of the valve body. A block is fixed at the outer wall position of the valve body. A spherical shaft body is sleeved inside the block. A rubber sleeve is fixed at the outer end face position of the spherical shaft body. A socket plate is sleeved inside the rubber sleeve. A stainless steel spring and a connecting rope are arranged at the upper end position of the socket plate. The other end of the connecting rope is fixed to the protective cover.

[0007] Preferably, a base nut is installed at the lower end position of the valve seat A.

[0008] Preferably, when the hydrogenation of the valve body is carried out, the sealing rings A and B are matched with the diameter of the hydrogenation gun for sealing to prevent hydrogen from leaking out.

[0009] Preferably, the sealing washer protects the sealing ring B from being worn by the edge of the valve body.

[0010] Preferably, the filtering component plays a sealing role after the valve body and the valve seat A are connected.

[0011] Preferably, the block is installed on the automobile shell at the outer wall position, and a protective cover is installed at the front end position of the automobile shell.

[0012] Preferably, when the protective cover is installed on the valve body, the connecting rope is stretched. After the connecting rope is subjected to the tensile force, the socket plate moves inside the rubber sleeve.

[0013] Preferably, the movement of the socket plate squeezes the stainless steel spring, and the rubber sleeve is installed on the block through the spherical shaft body.

[0014] Compared with the prior art, the utility model provides a hydrogen filling port for an electric vehicle fuel cell, and has the following beneficial effects:

[0015] When the protective cover and the valve body of the device are installed, the connecting rope will be stretched. The stretching of the connecting rope makes the socket plate move inside the rubber sleeve. The movement of the socket plate squeezes the stainless steel spring. At the same time, the rubber sleeve and the spherical shaft body swing flexibly with the spherical shaft as the center. When the protective cover is disassembled, the stainless steel spring releases the elastic force to retract the connecting rope into the rubber sleeve. Through this flexible connection structure, the protective cover will not be separated from the block.

[0016] The valve seat sealing ring, conical head sealing ring, sealing conical head, spring and spring seat group form a one-way valve. During hydrogenation, the hydrogenation equipment is connected to the valve body, and hydrogen flows through the filtering component and then towards the one-way valve. At this time, the sealing conical head of the one-way valve is opened under the gas pressure and then flows into the hydrogen volume. When hydrogenation stops, the sealing conical head automatically closes under the spring force and the pressure in the volume. At this time, the sealing conical head and the conical head sealing ring are closed, and hydrogen cannot be discharged, thus playing the role of a one-way valve. In this way, it is easier to cooperate and seal with the hydrogenation gun. Brief Description of the Drawings

[0017] Figure 1 This is a schematic diagram of the structure of a hydrogen filling port for an electric vehicle fuel cell according to the present utility model.

[0018] Figure 2 This is a schematic diagram of the internal structure of the valve body of a hydrogen filling port for an electric vehicle fuel cell according to the present utility model.

[0019] Figure 3 is a schematic diagram of the internal structure of the rubber sleeve of a hydrogen filling port for an electric vehicle fuel cell according to the present utility model.

[0020] In the figure: 1. Valve body; 2. Sealing ring A; 3. Protective cover; 4. Sealing ring B; 5. Sealing washer; 6. Filtering component; 7. Component sealing ring; 8. Valve seat A; 9. Spring A; 10. Spring seat; 11. Base nut; 12. Sealing conical head; 13. Conical head sealing ring; 14. Valve seat sealing ring; 15. Connecting rope; 16. Spherical shaft body; 17. Rubber sleeve; 18. Protective cover; 19. Automobile shell; 20. Stainless steel spring; 21. Socket plate; 22. Block. Detailed Embodiment

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] The present utility model provides as Figure 1-3An electric vehicle fuel cell hydrogen filling port shown in the figure includes a valve body 1. Inside the valve body 1, a sealing gasket 5 is installed at the upper end position. At the upper end position of the sealing gasket 5, a sealing ring B4 is installed. At the upper end position of the sealing ring B4, a sealing ring A2 is installed. Inside the valve body 1, a filtering component 6 is installed at the position above the middle. At the left and right end positions of the filtering component 6, component sealing rings 7 are installed. At the lower end position of the filtering component 6, a valve seat sealing ring 14 is installed. At the lower end position of the valve seat sealing ring 14, a tapered head sealing ring 13 is installed. At the lower end position of the valve body 1, a valve seat A8 is installed. Inside the valve seat A8, a spring seat 10 is installed. Inside the spring seat 10, a sealing tapered head 12 is installed. Inside the sealing tapered head 12, a spring A9 is arranged. At the upper end position of the valve body 1, a protective cover 3 is installed. On the outer wall position of the valve body 1, a block 22 is fixed. Inside the block 22, a spherical shaft body 16 is sleeved. On the outer end face position of the spherical shaft body 16, a rubber sleeve 17 is fixed. Inside the rubber sleeve 17, a socket plate 21 is sleeved. At the upper end position of the socket plate 21, a stainless steel spring 20 and a connecting rope 15 are provided. The other end position of the connecting rope 15 is fixed to the protective cover 3.

[0023] During hydrogen filling, the hydrogen filling device is connected to the valve body 1. After the hydrogen is filtered by the filtering component 6, it flows to the check valve. At this time, the sealing tapered head 12 of the check valve is opened under the gas pressure, and then it flows into the hydrogen volume. When the hydrogen filling stops, the sealing tapered head 12 is automatically closed under the spring force and the pressure in the volume. At this time, the sealing tapered head 12 is closed with the tapered head sealing ring 13, and the hydrogen cannot be discharged, thus playing the role of a check valve.

[0024] As Figure 1 and Figure 3 shown, at the lower end position of the valve seat A8, a base nut 11 is installed. The sealing ring A2 and the sealing ring B4 are sealed with the diameter of the hydrogen filling gun during hydrogen filling of the valve body 1 to prevent hydrogen from leaking. The sealing gasket 5 protects the sealing ring B4 from being worn by the edge of the valve body 1. The filtering component 6 plays a sealing role after the valve body 1 is connected to the valve seat A8. The block 22 is installed on the outer wall position with the vehicle body shell 19. At the front end position of the vehicle body shell 19, a protective cover 18 is installed. When the protective cover 3 is installed with the valve body 1, the connecting rope 15 is stretched. After the connecting rope 15 is subjected to the tensile force, the socket plate 21 moves inside the rubber sleeve 17. The movement of the socket plate 21 squeezes the stainless steel spring 20. The rubber sleeve 17 is installed with the block 22 through the spherical shaft body 16.

[0025] When the protective cover 3 is installed on the valve body 1, the connecting rope 15 will be stretched. The stretching of the connecting rope causes the socket plate 21 to move inside the rubber sleeve 17. The movement of the socket plate 21 squeezes the stainless steel spring 20. At the same time, the rubber sleeve 17 and the spherical shaft body 16 swing flexibly around the central axis. When the protective cover 3 is removed, the stainless steel spring 20 releases its elastic force to retract the connecting rope 15 into the inner position of the rubber sleeve 17.

[0026] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hydrogen refueling port for an electric vehicle fuel cell, characterized in that: The valve body (1) comprises a valve body (1), wherein a sealing gasket (5) is installed at an upper end position inside the valve body (1), a sealing ring B (4) is installed at an upper end position of the sealing gasket (5), a sealing ring A (2) is installed at an upper end position of the sealing ring B (4), a filter assembly (6) is installed at an upper middle position inside the valve body (1), assembly sealing rings (7) are installed at left and right ends of the filter assembly (6), a valve seat sealing ring (14) is installed at a lower end position of the filter assembly (6), a cone head sealing ring (13) is installed at a lower end position of the valve seat sealing ring (14), a valve seat A (8) is installed at a lower end position of the valve body (1), a spring seat (10) is installed at an inner position of the valve seat A (8), a sealing cone head (12) is installed at an inner position of the spring seat (10), and a spring A (9) is provided at an inner position of the sealing cone head (12); A protective cover (3) is installed at the upper end of the valve body (1); a block (22) is fixed at the outer wall of the valve body (1); a spherical shaft (16) is sleeved at the inner position of the block (22); a rubber sleeve (17) is fixed at the outer end surface of the spherical shaft (16); a sleeve plate (21) is sleeved at the inner position of the rubber sleeve (17); a stainless steel spring (20) and a connecting rope (15) are installed at the upper end of the sleeve plate (21); and the other end of the connecting rope (15) is fixed to the protective cover (3).

2. The hydrogen refueling port for a fuel cell of an electric vehicle according to claim 1, characterized in that: The valve seat A (8) is provided with a base nut (11) at the lower end thereof.

3. The hydrogen refueling port for a fuel cell of an electric vehicle according to claim 1, characterized in that: The sealing ring A (2) and the sealing ring B (4) cooperate with the diameter of the hydrogenation gun tube to seal the valve body (1) during hydrogenation to prevent hydrogen from leaking out.

4. The hydrogen refueling port for a fuel cell of an electric vehicle according to claim 1, characterized in that: The sealing gasket (5) protects the sealing ring B (4) from being worn by the edge of the valve body (1).

5. The hydrogen refueling port for a fuel cell of an electric vehicle according to claim 1, characterized in that: The filter assembly (6) plays a sealing role after the valve body (1) and the valve seat A (8) are connected.

6. The hydrogen refueling port for a fuel cell of an electric vehicle according to claim 1, characterized in that: The block (22) is mounted on the vehicle housing (19) at the outer wall, and a protective cover (18) is mounted at the front end of the vehicle housing (19).

7. The hydrogen refueling port for a fuel cell of an electric vehicle according to claim 1, characterized in that: The protective cover (3) stretches the connecting rope (15) when being installed with the valve body (1), and the connecting rope (15) is subjected to the tensile force, causing the sleeve plate (21) to move at an internal position of the rubber sleeve (17).

8. The hydrogen refueling port for a fuel cell of an electric vehicle according to claim 7, characterized in that: The movement of the sleeve plate (21) causes compression of the stainless steel spring (20), and the rubber sleeve (17) is installed with the block (22) via the spherical shaft (16).

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