Control valve, oil tank assembly and vehicle

Abstract

The invention discloses a control valve, a fuel tank assembly and a vehicle, the control valve penetrates through the top wall of a fuel tank and comprises a shell, the shell is provided with a mounting cavity, an exhaust port and a fuel port, the exhaust port and the fuel port are communicated with the mounting cavity, and the fuel port is formed in the cavity bottom wall of the mounting cavity and is suitable for being communicated with the fuel tank; and the valve element assembly is movably arranged in the mounting cavity in the vertical direction so as to block or open the exhaust port. According to the control valve, the oil port is formed in the cavity bottom wall of the mounting cavity and is suitable for being communicated with the fuel tank, and the valve element assembly is movably arranged in the mounting cavity in the vertical direction to block or open the exhaust port, so that the control valve can limit the maximum oil filling amount of the fuel tank, and the consistency of the air pressure in the fuel tank and the external atmosphere can be kept; and meanwhile, the control valve is simple in structure and convenient to machine and manufacture, and the production cost can be reduced.

Description

Technical Field

[0001] The present invention relates to the field of valve technology, and more particularly to a control valve, a fuel tank assembly and a vehicle. Background Art

[0002] In the related art, a control valve is located in the fuel tank to limit the maximum refueling amount and to keep the air pressure in the fuel tank consistent with the outside atmosphere when the fuel tank is not full of fuel. However, the structure of the control valve is complex and the production cost is high. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a control valve, which has a simple structure, is easy to manufacture, and can reduce production costs.

[0004] Another object of the present invention is to provide an oil tank assembly having the above control valve.

[0005] Another object of the present invention is to provide a vehicle having the above fuel tank assembly.

[0006] According to the control valve of the embodiment of the present invention, the control valve is penetrated through the top wall of the fuel tank and comprises: a shell having an installation cavity and an exhaust port and an oil port connected to the installation cavity, the oil port being arranged on the bottom wall of the installation cavity and suitable for connecting with the fuel tank; a valve core assembly, the valve core assembly being movably arranged in the installation cavity along the up and down directions to block or open the exhaust port.

[0007] According to the control valve of the embodiment of the present invention, the oil port is arranged on the bottom wall of the installation cavity and is suitable for being connected with the fuel tank. The valve core assembly is movably arranged in the installation cavity along the up and down directions to block or open the exhaust port, so that the control valve can limit the maximum refueling amount of the fuel tank and can maintain the consistency of the air pressure in the fuel tank with the external atmosphere. At the same time, the control valve has a simple structure, which is convenient for processing and manufacturing the control valve, and can reduce production costs.

[0008] In addition, the control valve according to the above embodiment of the present invention may also have the following additional technical features:

[0009] According to the control valve of some embodiments of the present invention, an abutment portion is provided on the upper cavity wall of the installation cavity, the exhaust port penetrates the abutment portion in the up-down direction, and the valve core assembly is suitable for abutting against the abutment portion to block the exhaust port.

[0010] According to some embodiments of the present invention, the valve core assembly includes: a valve core body, which is movably disposed in the installation cavity; and a sealing assembly, which is disposed above the valve core assembly and is suitable for abutting against the abutting portion.

[0011] According to some embodiments of the present invention, the sealing assembly is movably disposed above the valve core body in the up-down direction, and the sealing assembly has a circulation channel extending in the up-down direction, and the circulation channel is opposite to the exhaust port in the up-down direction, and when the exhaust port is blocked, the upper end face of the sealing assembly abuts against the abutting portion and the lower end face abuts against the valve core body.

[0012] According to some embodiments of the present invention, a cross-sectional area of ​​the flow channel gradually decreases in a direction from top to bottom.

[0013] According to some embodiments of the present invention, the sealing assembly includes: a movable part, which is movably arranged above the valve core body in the up and down directions; a sealing body, which is arranged on the movable part, the flow channel is arranged on the sealing body, and the sealing body is suitable for abutting against the abutting portion.

[0014] According to some embodiments of the present invention, the mating surfaces of the sealing body and the abutting portion are planes.

[0015] According to some embodiments of the present invention, a movable groove is provided at the upper end of the valve core body, the movable part is arranged in the movable groove, a connecting hole is provided on the groove side wall of the movable groove, and a matching protrusion extending into the connecting hole is provided on the outer peripheral wall of the movable part.

[0016] According to some embodiments of the present invention, the lower end of the communicating hole is flush with the bottom wall of the movable groove.

[0017] According to some embodiments of the present invention, a limiting groove is provided on one of the outer peripheral wall of the movable part and the groove side wall of the movable groove, and a limiting portion cooperating with the limiting groove is provided on the other, and the limiting groove extends in the up and down directions.

[0018] According to some embodiments of the present invention, a vibration damping member is provided on the bottom wall of the installation cavity, and the vibration damping member is suitable for abutting against the lower end of the valve core assembly.

[0019] According to some embodiments of the present invention, a mounting hole is provided on the bottom wall of the mounting cavity, and the vibration damping member is inserted into the mounting hole.

[0020] According to some embodiments of the present invention, the mounting hole is communicated with the oil port, and a diameter of the oil port is larger than a diameter of the mounting hole.

[0021] According to some embodiments of the present invention, the shell further has an exhaust pipe, the exhaust pipe is located outside the installation cavity and connected to an end of the abutment portion away from the installation cavity, and the exhaust pipe is communicated with the exhaust port.

[0022] According to some embodiments of the present invention, the housing includes: a first shell and a second shell, the first shell covers the top of the second shell to define the installation cavity, the oil port is arranged on the bottom wall of the second shell, and the exhaust port is arranged on the first shell.

[0023] According to some embodiments of the present invention, the first shell includes: a shell body, which is connected to the second shell; a guide portion, which is located on the inner side of the shell body and is formed in a ring shape, and the valve core assembly is movably disposed in the guide portion.

[0024] According to some embodiments of the present invention, one of the inner peripheral wall of the guide portion and the outer peripheral wall of the valve core assembly is provided with a guide rib, and the other is provided with a guide groove that cooperates with the guide rib.

[0025] According to some embodiments of the present invention, the first housing is a one-piece piece.

[0026] According to some embodiments of the present invention, the diameter of the oil port is 3 mm-12 mm.

[0027] According to some embodiments of the present invention, the oil ports are multiple and spaced apart on the bottom wall of the installation cavity.

[0028] According to some embodiments of the present invention, the control valve further comprises: an elastic member, wherein the elastic member is located between the valve core assembly and a bottom wall of the installation cavity to drive the valve core assembly to move upward.

[0029] The oil tank assembly according to the embodiment of the present invention comprises: a fuel tank; and a control valve according to the embodiment of the present invention, wherein the control valve is penetrated through the top wall of the fuel tank, and the oil port is suitable for communicating with the fuel tank.

[0030] According to the oil tank assembly of the embodiment of the present invention, the oil port is arranged on the bottom wall of the installation cavity and is suitable for being connected with the fuel tank. The valve core assembly is movably arranged in the installation cavity along the up and down directions to block or open the exhaust port, so that the control valve can limit the maximum refueling amount of the fuel tank and can maintain the consistency of the air pressure in the fuel tank with the external atmosphere. At the same time, the control valve has a simple structure, which is convenient for processing and manufacturing the control valve, and can reduce production costs.

[0031] The vehicle according to the embodiment of the present invention comprises the fuel tank assembly according to the embodiment of the present invention.

[0032] According to the vehicle of the embodiment of the present invention, the oil port is arranged on the bottom wall of the installation cavity and is suitable for being connected with the fuel tank. The valve core assembly is movably arranged in the installation cavity along the up and down directions to block or open the exhaust port, so that the control valve can limit the maximum refueling amount of the fuel tank and can maintain the consistency of the air pressure in the fuel tank with the external atmosphere. At the same time, the structure of the control valve is simple, which is convenient for processing and manufacturing the control valve, and can reduce production costs.

[0033] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0035] Figure 1 is a schematic structural diagram of a control valve according to an embodiment of the present invention;

[0036] Figure 2 is a front view of a control valve according to an embodiment of the present invention;

[0037] Figure 3 is a top view of a control valve according to an embodiment of the present invention;

[0038] Figure 4 yes Figure 3 A cross-sectional view along the direction indicated by line AA;

[0039] Figure 5 yes Figure 4 The middle circle shows the enlarged structural schematic diagram of B;

[0040] Figure 6 is a structural schematic diagram of a valve core body of a control valve according to an embodiment of the present invention;

[0041] Figure 7 is a front view of a valve core body of a control valve according to an embodiment of the present invention;

[0042] Figure 8 yes Figure 7 A cross-sectional view along the CC line;

[0043] Fig. 9 is a top view of a valve core body of a control valve according to an embodiment of the present invention;

[0044] Fig.10 is a structural schematic diagram of a second housing of a control valve according to an embodiment of the present invention;

[0045] Fig.11 is a front view of a second housing of a control valve according to an embodiment of the present invention;

[0046] Fig.12 is a top view of a second housing of a control valve according to an embodiment of the present invention;

[0047] Fig.13 yes Fig.12 A cross-sectional view along the direction indicated by line DD;

[0048] Fig.14 is a schematic structural diagram of a first housing of a control valve according to an embodiment of the present invention;

[0049] Fig.15 is a right side view of a first housing of a control valve according to an embodiment of the present invention;

[0050] Fig.16 yes Fig.15 A cross-sectional view along the direction indicated by line EE;

[0051] Fig.17 is a top view of a first housing of a control valve according to an embodiment of the present invention;

[0052] Fig.18 is a comparison diagram of the oil discharge flow rate of the control valve according to the embodiment of the present invention and the original oil discharge flow rate;

[0053] Fig.19 3 is a comparison diagram between the flow resistance of the control valve according to the embodiment of the present invention and the original flow resistance.

[0054] Reference numerals:

[0055] 100. Control valve;

[0056] 10. Shell; 11. Mounting cavity; 12. Exhaust port; 13. Oil port; 14. Abutment portion; 15. Vibration damper; 16. Exhaust pipe; 101. First shell; 102. Second shell; 111. Mounting hole;

[0057] 20. Valve core assembly; 21. Valve core body; 22. Sealing assembly; 221. Circulation channel;

[0058] 31, movable part; 32, sealing body; 311, matching protrusion; 312, matching groove; 321, movable groove; 322, connecting hole;

[0059] 41. Limiting groove; 44. Guide groove;

[0060] 51. Shell body; 52. Guide part;

[0061] 60. Elastic parts. DETAILED DESCRIPTION

[0062] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0063] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0064] In the description of the present invention, "first feature" and "second feature" may include one or more such features, "plurality" means two or more, a first feature "above" or "below" the second feature may include the first and second features being directly in contact, or may include the first and second features not being in direct contact but being in contact through another feature between them, and a first feature "above", "above" and "above" the second feature may include the first feature being directly above or diagonally above the second feature, or may simply mean that the first feature is horizontally higher than the second feature.

[0065] The control valve 100 according to an embodiment of the present invention will be described below with reference to the drawings.

[0066] Reference Figure 1-Figure 5 As shown, according to the control valve 100 of the embodiment of the present invention, the control valve 100 is disposed through the top wall of the fuel tank, and the control valve 100 may include: a housing 10 and a valve core assembly 20 .

[0067] Specifically, the shell 10 has an installation cavity 11, an exhaust port 12 and an oil port 13. The exhaust port 12 and the oil port 13 are connected to the installation cavity 11, and the oil port 13 can be connected to the fuel tank. The valve core assembly 20 is arranged in the installation cavity 11. The valve core assembly 20 can move in the up and down directions under the buoyancy of the oil, so that the valve core assembly 20 can block or open the exhaust port 12, thereby realizing the control requirements of the control valve 100, and the control of the control valve 100 is simple.

[0068] For example, when the oil in the fuel tank reaches the maximum refueling amount, the buoyancy of the oil can drive the valve core assembly 20 to block the exhaust port 12, thereby preventing the oil from further entering the fuel tank, thereby limiting the maximum refueling amount of the fuel tank; when the fuel tank is not full of oil, the valve core assembly 20 can open the exhaust port 12, so that the exhaust port 12 and the installation cavity 11 are connected to the inside of the fuel tank, so as to keep the air pressure in the fuel tank consistent with the outside atmosphere. For example, when the air pressure inside the fuel tank is too high or too low, the control valve 100 can be used to release or replenish pressure to ensure the stability of the air pressure in the fuel tank.

[0069] In addition, if Fig.10 and Fig.12 As shown, the oil port 13 is arranged on the bottom wall of the installation cavity 11, so that the oil can enter the installation cavity 11 through the oil port 13 to drive the valve core assembly 20, and the oil can flow out of the installation cavity 11 through the oil port 13 to avoid the accumulation of oil in the installation cavity 11. Therefore, the oil port 13 can be both the oil inlet 13 and the oil outlet 13, that is, the oil inlet 13 and the oil outlet 13 of the control valve 100 are combined, which is conducive to reducing the structural complexity of the control valve 100, facilitating the processing and manufacturing of the control valve 100, and thus reducing the production cost.

[0070] In some embodiments, the exhaust port 12 of the control valve 100 is connected to a liquid collecting box, so that the fuel vapor mixed with the gas can flow through the liquid collecting box and be collected in the liquid collecting box, thereby preventing the evaporated fuel from being discharged into the air and polluting the air.

[0071] According to the control valve 100 of the embodiment of the present invention, the oil port 13 is arranged on the bottom wall of the installation cavity 11 and is suitable for being connected with the fuel tank. The valve core assembly 20 is movably arranged in the installation cavity 11 along the up and down directions to block or open the exhaust port 12, so that the control valve 100 can limit the maximum refueling amount of the fuel tank and can maintain the consistency of the air pressure in the fuel tank with the external atmosphere. At the same time, the structure of the control valve 100 is simple, which is convenient for processing and manufacturing the control valve 100 and can reduce the production cost.

[0072] In some embodiments of the present invention, Figure 4 , Figure 5 and Fig.16 As shown, an abutment portion 14 is provided on the upper cavity wall of the installation cavity 11, and the exhaust port 12 passes through the abutment portion 14 in the up and down directions. The valve core assembly 20 can abut against the abutment portion 14 to seal the exhaust port 12, ensuring that the exhaust port 12 is reliably sealed, and the structure is simple, which is convenient for processing and manufacturing, and is conducive to reducing production costs.

[0073] According to some embodiments of the present invention, Figure 4-Figure 8As shown, the valve core assembly 20 includes a valve core body 21 and a sealing assembly 22. The valve core body 21 is movably arranged in the installation cavity 11, and the sealing assembly 22 is arranged above the valve core assembly 20. When the valve core assembly 20 moves in the up and down directions, the valve core body 21 can drive the sealing assembly 22 to move up and down, so that the sealing assembly 22 can abut against the abutment portion 14, thereby achieving the blocking of the exhaust port 12. The sealing assembly 22 can be driven to move by the valve core body 21 to meet the required control requirements, and the valve core assembly 20 has a simple structure, which is easy to process and manufacture, and is conducive to reducing production costs.

[0074] In some embodiments of the present invention, Figure 4 and Figure 5 As shown, the sealing assembly 22 is movably disposed above the valve core body 21 in the up-down direction. The sealing assembly 22 has a flow channel 221 extending in the up-down direction. The flow channel 221 is opposite to the exhaust port 12 in the up-down direction.

[0075] Therefore, when the exhaust port 12 is blocked, the upper end face of the sealing component 22 is abutted against the abutment 14, and the lower end face of the sealing component 22 is abutted against the valve core body 21, so that the exhaust port 12 and the circulation channel 221 are blocked at the same time, ensuring reliable blocking and preventing the oil from flowing out of the installation cavity 11 through the exhaust port 12 and causing leakage; when the exhaust port 12 needs to be opened when the oil drops, the lower end face of the sealing component 22 is first disengaged from the valve core body 21. Due to the evaporation of fuel in the fuel tank, the internal air pressure is relatively high. Under the action of pressure, the upper end face of the sealing component 22 is kept abutting against the abutment 14, and the interior of the fuel tank can be connected to the outside atmosphere through the circulation channel 221. When the air pressure in the fuel tank is consistent with that of the outside atmosphere, the upper end face of the sealing component 22 is disengaged from the abutment 14, so that the exhaust port 12 is fully opened to meet the required control requirements.

[0076] For example, when the oil level is lower than the threshold and the control valve 100 is in the fully open mode, it is convenient to refuel the fuel tank to meet the required refueling requirements; during the refueling process, when the oil level is greater than the set threshold and the control valve 100 is in the closed mode, the valve core assembly 20 moves upward under the buoyancy of the oil, and can block the exhaust port 12 to prevent the oil from flowing out of the exhaust port 12; during vehicle driving, when the oil level is lower than the threshold, the valve core body 21 moves downward under the action of gravity, the lower end face of the sealing assembly 22 disengages from the valve core body 21, the fuel tank starts to exhaust at a small flow rate, the control valve 100 is in the semi-open mode, and then the valve core body 21 continues to push the sealing assembly 22 downward, so that the sealing assembly 22 moves downward, the upper end face of the sealing assembly 22 can disengage from the abutment 14, the fuel tank starts to exhaust at a large flow rate, the control valve 100 is in the fully open mode, and the control valve 100 can achieve pressure relief or pressure replenishment for the fuel tank.

[0077] In some embodiments, Figure 5 As shown, in the direction from top to bottom, the cross-sectional area of ​​the circulation channel 221 gradually decreases, which can reduce the pressure on the contact between the valve core body 21 and the sealing assembly 22. When the oil drops and the exhaust port 12 needs to be opened, it ensures that the lower end surface of the sealing assembly 22 is reliably disengaged from the valve core body 21, so that the control of the control valve 100 is reliable.

[0078] According to some embodiments of the present invention, Figure 4 and Figure 5 As shown, the sealing assembly 22 includes a movable part 31 and a sealing body 32. The movable part 31 is movably arranged above the valve core body 21 in the up and down directions. The sealing body 32 is arranged on the movable part 31, so that the movable part 31 can drive the sealing body 32 to move up and down. The flow channel 221 is arranged on the sealing body 32, and the sealing body 32 can abut against the abutment part 14 to achieve the sealing of the exhaust port 12 by the sealing body 32, and facilitate the flow channel 221 to be opposite to the exhaust port 12. The structure of the sealing assembly 22 is simple and easy to process and manufacture.

[0079] In some embodiments, Figure 4 and Figure 5 As shown, a matching groove 312 is provided at the upper end of the movable part 31, and the sealing body 32 is penetrated through the bottom wall of the matching groove 312. The abutment portion 14 can extend into the matching groove 312 and abut against the sealing body 32 to ensure that the sealing body 32 can reliably seal the exhaust port 12 and is not prone to displacement.

[0080] In some embodiments, the sealing assembly 22 is an integral part. In other words, the movable part 31 and the sealing body 32 can be an integral part, which is simple to manufacture, has high connection strength, reduces assembly steps, and has high production efficiency.

[0081] In some embodiments of the present invention, Figure 5 As shown, the mating surfaces of the sealing body 32 and the abutting portion 14 are flat, which avoids the problem of poor sealing effect caused by sealing through a plunger in the related art, ensures reliable sealing, and is conducive to improving sealing stability.

[0082] According to some embodiments of the present invention, Figure 4-Figure 9As shown, a moving groove 321 is provided at the upper end of the valve core body 21, and the movable member 31 is arranged in the moving groove 321. A connecting hole 322 is provided on the groove side wall of the moving groove 321, and a matching protrusion 311 is provided on the outer peripheral wall of the movable member 31, and the matching protrusion 311 extends into the connecting hole 322. Therefore, when the valve core body 21 moves in the up-down direction, the matching protrusion 311 and the connecting hole 322 make it easy for the valve core body 21 to drive the movable member 31 to move, ensuring reliable movement, and the structure is simple, which is convenient for processing and manufacturing. At the same time, when the movable member 31 moves in the up-down direction, the connecting hole 322 can guide the movement of the matching protrusion 311, ensuring reliable movement of the movable member 31 in the up-down direction and avoiding deviation.

[0083] In some embodiments, Figure 6 As shown, there are multiple connecting holes 322 spaced apart in the circumferential direction of the movable groove 321, and there are multiple matching protrusions 311 corresponding one to one with the connecting holes 322. Through the matching of the multiple connecting holes 322 and the multiple matching protrusions 311, it is ensured that the valve core body 21 drives the movable part 31 to move reliably and avoids the movable part 31 from shifting during movement.

[0084] In the embodiment of the present invention, the number of the communicating holes 322 can be flexibly set according to actual conditions. For example, the communicating holes 322 can be as follows: Figure 6 Two are shown, but three, four, five, six or more may also be provided, all of which are within the protection scope of the present invention.

[0085] In some embodiments of the present invention, Figure 5 As shown, the lower end of the connecting hole 322 is flush with the bottom wall of the movable groove 321, so that the oil entering the movable groove 321 from the connecting hole 322 can flow out smoothly, avoiding the problem of oil accumulation caused by obstruction to the flow of oil, which can improve the sensitivity of the control valve 100 and reduce the risk of failure.

[0086] According to some embodiments of the present invention, Figure 6 , Figure 8 and Fig. 9 As shown, a limiting groove 41 is provided on the groove side wall of the movable groove 321, and a limiting portion is provided on the outer peripheral wall of the movable member 31, and the limiting groove 41 extends in the up-down direction. Therefore, through the cooperation between the limiting portion and the limiting groove 41, the movement of the movable member 31 can be guided to avoid the displacement of the movable member 31, thereby ensuring reliable control of the control valve 100.

[0087] Of course, a limiting groove 41 is provided on the outer peripheral wall of the movable member 31 , and a limiting portion cooperating with the limiting groove 41 is provided on the groove side wall of the movable groove 321 , which is also within the protection scope of the present invention.

[0088] In some embodiments, Figure 6As shown, there are a plurality of limit grooves 41 spaced apart along the circumferential direction of the movable groove 321, and there are a plurality of limit parts corresponding one to one with the limit grooves 41. Through the cooperation of the plurality of limit grooves 41 and the plurality of limit parts, reliable guidance of the movable part 31 is ensured to avoid displacement of the movable part 31.

[0089] In the embodiment of the present invention, the number of the limiting grooves 41 can be flexibly set according to actual conditions. For example, the limiting grooves 41 can be as follows: Figure 6 Two are shown, but three, four, five, six or more may also be provided, all of which are within the protection scope of the present invention.

[0090] In some embodiments where both the limiting groove 41 and the communicating hole 322 are multiple, such as Figure 6 As shown, the limiting grooves 41 and the communicating holes 322 are arranged at staggered intervals along the circumferential direction of the moving groove 321, which can ensure the overall structural strength of the valve core body 21 and facilitate processing and manufacturing.

[0091] In some embodiments of the present invention, Figure 4 , Figure 11-13 As shown, a vibration damper 15 is provided on the bottom wall of the installation cavity 11, and the vibration damper 15 can abut against the lower end of the valve core assembly 20. Therefore, when the valve core assembly 20 moves in the up and down directions, the vibration generated by the valve core assembly 20 during the movement can be absorbed by the vibration damper 15, so as to avoid transmitting the power on the valve core assembly 20 to the housing 10 and affecting the control of the control valve 100, and can achieve a noise reduction effect. At the same time, the vibration damper 15 is provided on the bottom wall of the installation cavity 11, which can reduce the structural complexity and radial falling risk of the side-mounted vibration damper in the related art, ensure the normal operation of the vibration damper 15, and reduce the production cost.

[0092] In some embodiments, Fig.13 As shown, there are a plurality of vibration damping members 15 arranged at intervals along the circumferential direction of the installation cavity 11 , and a good vibration damping effect can be ensured by the plurality of vibration damping members 15 .

[0093] In the embodiment of the present invention, the number of the vibration damping members 15 can be flexibly set according to actual conditions. For example, the vibration damping members 15 can be as follows: Fig.13 Two are shown, but three, four, five, six or more may also be provided, all of which are within the protection scope of the present invention.

[0094] According to some embodiments of the present invention, Fig.12 and Fig.13As shown, a mounting hole 111 is provided on the bottom wall of the mounting cavity 11, and the vibration damper 15 is inserted into the mounting hole 111. The vibration damper 15 can be installed on the shell 10 through the mounting hole 111, which is convenient for fixing the vibration damper 15. The structure is simple, easy to process and manufacture, and is conducive to reducing production costs.

[0095] In some embodiments of the present invention, Fig.12 As shown, the mounting hole 111 is connected to the oil port 13, and the aperture of the oil port 13 is larger than the aperture of the mounting hole 111. Therefore, the vibration damper 15 can be easily installed in the mounting hole 111 through the oil port 13, making the installation of the vibration damper 15 more convenient and helping to improve assembly efficiency.

[0096] In some embodiments, the diameter of the mounting hole 111 is smaller than the outer diameter of the vibration damper 15 , so that the vibration damper 15 is securely fixed in the mounting hole 111 , preventing the vibration damper 15 from falling off the mounting hole 111 , and ensuring that the vibration damper 15 is securely fixed on the housing 10 .

[0097] According to some embodiments of the present invention, Figure 1-Figure 4 , Figure 15-17 As shown, the housing 10 further includes an exhaust pipe 16, which is located outside the mounting cavity 11 and connected to an end of the abutment portion 14 away from the mounting cavity 11, and the exhaust pipe 16 is connected to the exhaust port 12. Thus, the exhaust port 12 is easily connected to the external structure through the exhaust pipe 16, which can meet the required connection requirements, ensure convenient connection, and has a simple structure, which is easy to process and manufacture.

[0098] In some embodiments, Figure 1-Figure 4 , Fig.16 As shown, the exhaust pipe 16 and the abutment portion 14 are perpendicular to each other, so that the exhaust pipe 16 and the abutment portion 14 can be roughly formed into an "L" shape, which facilitates the connection between the exhaust pipe 16 and the external structure and makes the connection setting more flexible.

[0099] In some embodiments of the present invention, Figure 1-Figure 4 As shown, the housing 10 includes a first housing 101 and a second housing 102. The first housing 101 covers the second housing 102 so that the first housing 101 and the second housing 102 can define an installation cavity 11, which is convenient for installing the valve core assembly 20 in the installation cavity 11, and the oil port 13 is arranged on the bottom wall of the second housing 102, and the exhaust port 12 is arranged on the first housing 101, which can reduce the structural complexity of the housing 10, facilitate the processing and manufacturing of the first housing 101 and the second housing 102 respectively, and help reduce production costs.

[0100] In some embodiments, the first housing 101 and the second housing 102 are connected by snap-fit ​​connection, which ensures that the first housing 101 and the second housing 102 are reliably connected and easy to disassemble, maintain or replace.

[0101] According to some embodiments of the present invention, Figure 14-17 As shown, the first shell 101 includes a shell body 51 and a guide portion 52. The shell body 51 is connected to the second shell 102, which can achieve the connection requirements between the first shell 101 and the second shell 102. The guide portion 52 is located on the inner side of the shell body 51, and the guide portion 52 is formed in a ring shape. The valve core assembly 20 is movably arranged in the guide portion 52. The movement of the valve core assembly 20 can be guided by the guide portion 52 to avoid problems such as displacement of the valve core body 21, thereby ensuring reliable control of the control valve 100.

[0102] In some embodiments of the present invention, Figure 6 , Figure 7 and Fig. 9 As shown, a guide rib is provided on the inner circumferential wall of the guide portion 52, and a guide groove 44 is provided on the outer circumferential wall of the valve core assembly 20. Thus, the movement of the valve core assembly 20 can be guided by cooperating with the guide groove 44 and the guide rib, thereby avoiding deviation of the movement of the valve core assembly 20 and ensuring reliable control of the control valve 100.

[0103] Of course, guide ribs are provided on the outer peripheral wall of the valve core assembly 20, and guide grooves 44 cooperating with the guide ribs are provided on the inner peripheral wall of the guide portion 52, which are also within the protection scope of the present invention.

[0104] According to some embodiments of the present invention, the first housing 101 is an integrated piece, which is easy to manufacture, has high connection strength, reduces assembly steps, has high production efficiency, and can reduce production costs.

[0105] In some embodiments where the first shell 101 includes a shell body 51, a guide portion 52 and an exhaust pipe 16, the shell body 51, the guide portion 52 and the exhaust pipe 16 are integrated into one piece, which can ensure high connection strength, reduce assembly steps, and help improve production efficiency. It can also reduce overall costs and facilitate lightweighting.

[0106] In the related art, during the oil drop process, the oil in the control valve flows out of the oil port slowly, and the flow resistance is large. When a large flow rate is required to discharge the oil, the oil discharge efficiency will be greatly affected, so that the control valve cannot be opened in time, and there is a certain delay. At the same time, as the use time increases, the impurities in the oil will form grease deposits with high viscosity and surface adsorption. Under low flow and high flow resistance, a deposit layer is easily formed on the surface of the oil port. The oil port is easily blocked by the deposition of impurities in the oil, which affects the use of the control valve.

[0107] Therefore, in some embodiments of the present invention, Fig.12 As shown, the diameter of the oil port 13 is 3mm-12mm, that is, the diameter of the oil port 13 is Φ and satisfies 3mm≤Φ≤12mm. Within the above range, the size of the oil port 13 is increased, which can ensure smooth oil flow and avoid problems such as blockage, which is conducive to extending the service life and ensuring that the control valve 100 works reliably. For example, in some specific embodiments, the diameter of the oil port 13 can be 3mm, 5mm, 8mm, 10mm, 12mm, etc.

[0108] For example, Fig.18 As shown, F is the original oil discharge flow of the control valve 100, and G is the oil discharge flow of the control valve 100 using the above solution, which can ensure that the oil discharge flow of the control valve 100 using the above solution is good; Fig.19 As shown, H is the original flow resistance of the control valve 100, and I is the flow resistance of the control valve 100 using the above solution, which can ensure that the flow resistance of the control valve 100 using the above solution is low.

[0109] According to some embodiments of the present invention, Fig.12 As shown, there are multiple oil ports 13, and the multiple oil ports 13 are spaced apart on the bottom wall of the installation cavity 11. The multiple oil ports 13 can ensure that the oil enters and flows out of the installation cavity 11 more smoothly, thereby ensuring that the control of the control valve 100 is more reliable, and when one of the oil ports 13 is blocked, the remaining oil ports 13 can meet the oil inlet and outlet requirements, which is beneficial to prolonging the service life.

[0110] In the embodiment of the present invention, the number of the oil ports 13 can be flexibly set according to actual conditions. For example, the oil ports 13 can be Fig.12 Two are shown, but three, four, five, six or more may also be provided, all of which are within the protection scope of the present invention.

[0111] In some embodiments of the present invention, Figure 4 As shown, the control valve 100 further includes an elastic member 60, which is located between the valve core assembly 20 and the bottom wall of the installation cavity 11. The elastic member 60 can drive the valve core assembly 20 to move upward, so that the valve core assembly 20 can drive the valve core assembly 20 to move upward under the buoyancy of the elastic member 60 and the oil, meeting the driving requirements of the valve core assembly 20, ensuring that the valve core assembly 20 reliably blocks the exhaust port 12, and ensuring that the valve core assembly 20 moves smoothly and is reliably driven. For example, the elastic member 60 can be a spring, etc.

[0112] For example, when the oil level is lower than the threshold and the control valve 100 is in the fully open mode, it is convenient to refuel the fuel tank to meet the required refueling needs; during the refueling process, when the oil level is greater than the set threshold and the control valve 100 is in the closed mode, the valve core assembly 20 moves upward under the buoyancy of the oil and the elastic force of the elastic member 60, and can block the exhaust port 12 to prevent the oil from flowing out of the exhaust port 12; during vehicle driving, when the oil level is lower than the threshold, the valve core assembly 20 compresses the elastic member 60 downward under the action of gravity, and can open the exhaust port 12, which is convenient for depressurizing or replenishing the fuel tank.

[0113] The oil tank assembly according to an embodiment of the present invention includes a fuel tank and a control valve 100 according to an embodiment of the present invention. The control valve 100 is penetrated through the top wall of the fuel tank, which can realize the fixation of the control valve 100 and meet the fixing requirements of the control valve 100, and the oil port 13 can be connected with the fuel tank to meet the connection requirements of the control valve 100.

[0114] Since the control valve 100 according to the embodiment of the present invention has the above-mentioned beneficial technical effects, the oil tank assembly according to the embodiment of the present invention is arranged on the bottom wall of the installation cavity 11 through the oil port 13 and is suitable for communicating with the fuel tank. The valve core assembly 20 is movably arranged in the installation cavity 11 along the up and down directions to block or open the exhaust port 12, so that the control valve 100 can limit the maximum refueling amount of the fuel tank and can maintain the consistency of the air pressure in the fuel tank with the external atmosphere. At the same time, the structure of the control valve 100 is simple, which is convenient for processing and manufacturing the control valve 100, and can reduce the production cost.

[0115] The vehicle according to the embodiment of the present invention includes the fuel tank assembly according to the embodiment of the present invention. Since the fuel tank assembly according to the embodiment of the present invention has the above-mentioned beneficial technical effects, the vehicle according to the embodiment of the present invention has the fuel port 13 disposed on the bottom wall of the installation cavity 11 and adapted to be connected with the fuel tank, and the valve core assembly 20 is movably disposed in the installation cavity 11 in the up-down direction to block or open the exhaust port 12, so that the control valve 100 can limit the maximum refueling amount of the fuel tank and can maintain the consistency of the air pressure in the fuel tank with the outside atmosphere, and at the same time, the control valve 100 has a simple structure, which is convenient for processing and manufacturing the control valve 100, and can reduce the production cost.

[0116] The vehicle may be a fuel vehicle or a hybrid vehicle.

[0117] The control valve 100 , the fuel tank assembly and other components and operations of the vehicle according to the embodiment of the present invention are well known to those skilled in the art and will not be described in detail herein.

[0118] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0119] In the description of this specification, the description with reference to the terms "embodiment", "specific embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0120] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A control valve, characterized in that: The control valve (100) is disposed through the top wall of the fuel tank and comprises: A housing (10), the housing (10) comprising a mounting cavity (11) and an exhaust port (12) and an oil port (13) in communication with the mounting cavity (11); the oil port (13) is arranged on a bottom wall of the mounting cavity (11) and is suitable for being in communication with the fuel tank; A valve core assembly (20) is movably disposed in the installation cavity (11) along an up-down direction to block or open the exhaust port (12).

2. The control valve according to claim 1, characterized in that: An abutment portion (14) is provided on the upper cavity wall of the installation cavity (11), the exhaust port (12) passes through the abutment portion (14) in the up-down direction, and the valve core assembly (20) is suitable for abutting against the abutment portion (14) to block the exhaust port (12).

3. The control valve according to claim 2, characterized in that: The valve core assembly (20) comprises: A valve core body (21), the valve core body (21) being movably disposed in the installation cavity (11); A sealing component (22), wherein the sealing component (22) is disposed above the valve core component (20), and the sealing component (22) is suitable for abutting against the abutting portion (14).

4. The control valve according to claim 3, characterized in that: The sealing component (22) is movably disposed above the valve core body (21) in the up-down direction. The sealing component (22) has a flow channel (221) extending in the up-down direction. The flow channel (221) is opposite to the exhaust port (12) in the up-down direction. When the exhaust port (12) is blocked, the upper end surface of the sealing component (22) abuts against the abutment portion (14) and the lower end surface abuts against the valve core body (21).

5. The control valve according to claim 4, characterized in that: In the direction from top to bottom, the cross-sectional area of ​​the circulation channel (221) gradually decreases.

6. The control valve according to claim 4, characterized in that: The sealing assembly (22) comprises: A movable member (31), the movable member (31) being movably disposed above the valve core body (21) in an up-down direction; A sealing body (32), wherein the sealing body (32) is disposed on the movable part (31), the circulation channel (221) is disposed on the sealing body (32), and the sealing body (32) is suitable for abutting against the abutting portion (14).

7. The control valve according to claim 6, characterized in that The matching surfaces of the sealing body (32) and the abutting portion (14) are planes.

8. The control valve according to claim 6, characterized in that: A movable groove (321) is provided at the upper end of the valve core body (21), the movable member (31) is arranged in the movable groove (321), a connecting hole (322) is provided on the groove side wall of the movable groove (321), and a matching protrusion (311) extending into the connecting hole (322) is provided on the outer peripheral wall of the movable member (31).

9. The control valve according to claim 8, characterized in that The lower end of the communicating hole (322) is flush with the bottom wall of the movable groove (321).

10. The control valve according to claim 8, characterized in that A limiting groove (41) is provided on one of the outer peripheral wall of the movable member (31) and the groove side wall of the movable groove (321), and a limiting portion cooperating with the limiting groove (41) is provided on the other, and the limiting groove (41) extends in the up-down direction.

11. The control valve according to claim 2, characterized in that: A vibration damping member (15) is provided on the bottom wall of the installation cavity (11), and the vibration damping member (15) is suitable for abutting against the lower end of the valve core assembly (20).

12. The control valve according to claim 11, characterized in that A mounting hole (111) is provided on the bottom wall of the mounting cavity (11), and the vibration damping member (15) is inserted into the mounting hole (111).

13. The control valve according to claim 12, characterized in that The mounting hole (111) is in communication with the oil port (13), and the diameter of the oil port (13) is larger than the diameter of the mounting hole (111).

14. The control valve according to claim 2, characterized in that The housing (10) further comprises an exhaust pipe (16), wherein the exhaust pipe (16) is located outside the installation cavity (11) and connected to an end of the abutment portion (14) away from the installation cavity (11), and the exhaust pipe (16) is in communication with the exhaust port (12).

15. The control valve according to claim 1, characterized in that The housing (10) comprises: A first shell (101) and a second shell (102), wherein the first shell (101) covers the second shell (102) to define the installation cavity (11), the oil port (13) is arranged on the bottom wall of the second shell (102), and the exhaust port (12) is arranged on the first shell (101).

16. The control valve according to claim 15, characterized in that The first housing (101) comprises: A shell body (51), wherein the shell body (51) is connected to the second shell (102); A guide portion (52) is located inside the shell body (51) and is formed in a ring shape. The valve core assembly (20) is movably arranged in the guide portion (52).

17. The control valve according to claim 16, characterized in that One of the inner peripheral wall of the guide portion (52) and the outer peripheral wall of the valve core assembly (20) is provided with a guide rib, and the other is provided with a guide groove (44) that cooperates with the guide rib.

18. The control valve according to claim 15, characterized in that The first housing (101) is an integral piece.

19. The control valve according to claim 1, characterized in that The diameter of the oil port (13) is 3 mm to 12 mm.

20. The control valve according to claim 1, characterized in that The oil ports (13) are multiple and are arranged at intervals on the bottom wall of the installation cavity (11).

21. The control valve according to claim 1, characterized in that Also includes: An elastic member (60), wherein the elastic member (60) is located between the valve core assembly (20) and the bottom wall of the installation cavity (11) to drive the valve core assembly (20) to move upward.

22. A fuel tank assembly, characterized in that: include: Fuel tank; According to the control valve (100) according to any one of claims 1 to 21, the control valve (100) is penetrated through the top wall of the fuel tank, and the oil port (13) is suitable for communicating with the fuel tank.

23. A vehicle, characterized in that: Comprising a fuel tank assembly according to claim 22.

Images