A fuel tank with an active baffle

Abstract

This invention relates to the field of fuel tank technology and discloses a fuel tank with an active baffle, including a fuel tank, a baffle disposed inside the fuel tank, and an extended wing plate disposed on one side of the baffle; an auxiliary component disposed inside the fuel tank, including a movable component, the movable component including a fixing bracket fixed to one side of the baffle, a support sleeve fixed to the inner wall of the fuel tank, and a first spring sleeved on the outer side of the support sleeve. The beneficial effects of this invention are: by setting a baffle inside the fuel tank, when the fuel sloshes slightly, the baffle moves synchronously with the fuel, which can reduce the relative velocity between the two, avoid secondary vibration caused by rigid collision, and quickly dissipate the sloshing kinetic energy by means of friction between the baffle and the inner wall of the fuel tank and the fuel, suppressing energy accumulation, while reducing fuel tank resonance and vibration noise, without hindering the normal flow of fuel, ensuring stable fuel supply, and improving driving comfort.

Description

Technical Field

[0001] This invention relates to the field of fuel tank technology, and in particular to a fuel tank with an active baffle. Background Technology

[0002] As a core fuel storage component of a vehicle, the fuel tank's primary function is to store the fuel required for engine operation and provide a stable fuel supply to the fuel supply system, ensuring continuous and reliable vehicle operation. During driving, the vehicle is affected by complex conditions such as rapid acceleration, rapid deceleration, turning, and bumpy roads. Due to inertia, the fuel in the tank will experience significant unidirectional accumulation, high-frequency small-amplitude oscillations, and moderate-amplitude reciprocating flow. The center of gravity shift and impact force caused by the fuel sloshing are transmitted to the vehicle body through the fuel tank bracket, disrupting the force balance during vehicle operation. Especially under low fuel conditions, the center of gravity shift caused by unilateral fuel accumulation will exacerbate the vehicle's tilt and pitch tendencies, significantly reducing vehicle driving stability and handling precision, and increasing driving risks in complex road conditions. Summary of the Invention

[0003] In view of the problems existing in the above and / or existing fuel tanks with active baffles, the present invention is proposed.

[0004] Therefore, the problem that this invention aims to solve is that oil sloshing can disrupt the force balance during vehicle operation, thereby reducing vehicle stability.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a fuel tank with an active baffle, comprising a fuel tank, wherein a baffle is disposed inside the fuel tank, and an extended wing plate is disposed on one side of the baffle; An auxiliary component, disposed within the fuel tank, includes a movable component. The movable component includes a fixed frame fixed to one side of the baffle. A support sleeve is fixed to the inner wall of the fuel tank. A first spring is sleeved on the outer side of the support sleeve. The two ends of the first spring are fixed to the fixed frame and the inner wall of the fuel tank, respectively. A fixed post is fixed to the inner wall of the support sleeve. A piston is fixed to the end of the fixed post. A movable sleeve is sleeved on the outer side of the piston. The movable sleeve is fixed to the inner side of the fixed frame. One end of the movable sleeve is open. A stop block is hinged to one side of the movable sleeve through a hinge plate. A vent hole is provided on the stop block.

[0006] As a preferred embodiment of the fuel tank with active baffle described in this invention, the auxiliary component further includes a driving component, the driving component including a cylinder fixed to the upper part of the inside of the fuel tank, a fixed sleeve fixed to the output end of the cylinder, a limit post inserted into the fixed sleeve, a limit hole opened in the inner wall of the fixed frame, and an electromagnet fixed to the bottom end of the limit post and the inner wall of the fixed sleeve.

[0007] As a preferred embodiment of the fuel tank with an active baffle according to the present invention, wherein: a guide post is fixed on one side of the baffle, a guide rail is fixed on one side of the movable sleeve, a connecting post is fixed on one side of the limiting post, and a slide rail is fixed at the end of the connecting post.

[0008] As a preferred embodiment of the fuel tank with an active baffle according to the present invention, the auxiliary component further includes a rotating component, the rotating component including a rotating column fixed inside the extended wing plate, a support block fixed on one side of the baffle, the rotating column being rotatably connected to the support block, a rotating sleeve being rotatably connected to the outside of the rotating column, a gear being provided on the outside of the rotating sleeve, and a toothed plate being fixed inside the fuel tank, the gear meshing with the toothed plate.

[0009] As a preferred embodiment of the fuel tank with active baffle described in this invention, the auxiliary component further includes a connector, the connector including a positioning sleeve fixed to the outside of the rotating column, a support frame fixed to one side of the rotating sleeve, a locking block provided inside the support frame, a toothed block fixed inside the positioning sleeve, and a sensing ball provided inside the support frame.

[0010] As a preferred embodiment of the fuel tank with an active baffle according to the present invention, the auxiliary component further includes a locking member, the locking member including a sleeve fixed to one side of the rotating column, and the inner wall is fixed with the insert post.

[0011] As a preferred embodiment of the fuel tank with active baffle described in this invention, the auxiliary component further includes a snap-fit ​​component, a fixing frame fixed to the inner side of the rotating sleeve, an insert block disposed within the fixing frame, a slot opened on the inner side of the gear, the insert block engaging with the slot, and a compression sleeve fixed to one side of the insert block.

[0012] As a preferred embodiment of the fuel tank with an active baffle according to the present invention, the auxiliary component further includes a locking member, the locking member including a movable column, a cavity opened at the top of the rotating column, the movable column being located in the cavity, a rotating plate being rotatably connected to the top of the movable column via a rotating shaft, a locking rod being fixed at the top of the rotating plate, a locking hole being opened on the insert block, and the locking rod engaging with the locking hole.

[0013] As a preferred embodiment of the fuel tank with an active baffle according to the present invention, a spiral groove is provided on the movable column, a fixed shaft is fixed on one side of the baffle, and the fixed shaft is movably connected to the spiral groove.

[0014] As a preferred embodiment of the fuel tank with active baffle described in this invention, a fixing rod is fixed at the bottom of the chamber, a fixing groove is provided at the bottom of the movable column, and the fixing rod is movably connected to the fixing groove.

[0015] The beneficial effects of this invention are as follows: by setting a baffle inside the fuel tank, when the fuel sways slightly, the baffle moves synchronously with the fuel, which can reduce the relative speed between the two and avoid secondary vibration caused by rigid collision. With the help of friction between the baffle and the inner wall of the fuel tank and the fuel, as well as the damping of fluid flow, the swaying kinetic energy can be quickly dissipated, suppressing energy accumulation. At the same time, it can reduce fuel tank resonance and vibration noise, without hindering the normal flow of fuel, ensuring stable fuel supply and improving driving comfort.

[0016] When the vehicle accelerates or decelerates rapidly, the baffle moves to the side where the oil accumulates, forming a front physical barrier. This increases the blocking area and directly intercepts the unidirectional inertial impact of the oil, significantly reducing the instantaneous stress on the tank wall and avoiding fatigue damage and leakage risks. By using reverse support force to force the oil to decelerate, the vehicle's center of gravity shifts, suppressing body pitch and roll, dispersing local high pressure, stabilizing the free fluid surface, and ensuring fuel supply and driving stability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is an overall structural diagram of a fuel tank with an active baffle.

[0018] Figure 2 This is a diagram of the baffle structure of a fuel tank with an active baffle.

[0019] Figure 3 This is a cross-sectional view of a moving fuel tank with an active baffle.

[0020] Figure 4 This is a structural diagram of the drive component of a fuel tank with an active baffle.

[0021] Figure 5 This is a structural diagram of the rotating component of a fuel tank with an active baffle.

[0022] Figure 6 This is a structural diagram of the connector for a fuel tank with an active baffle.

[0023] Figure 7 This is a cross-sectional view of the support frame of a fuel tank with an active baffle.

[0024] Figure 8 This is a cross-sectional view of the rotating sleeve of a fuel tank with an active baffle.

[0025] Figure 9This is a partial cross-sectional view of the rotating column of a fuel tank with an active baffle.

[0026] Figure 10 For fuel tanks with active baffles Figure 9 Enlarged view of the structure at point A in the middle.

[0027] Figure 11 This is a structural diagram of the moving column and fixed shaft of a fuel tank with an active baffle.

[0028] In the diagram: 1. Fuel tank; 11. Baffle; 12. Extended wing plate; 2. Auxiliary component; 21. Moving part; 211. Fixed frame; 212. Support sleeve; 213. First spring; 214. Fixed column; 215. Piston; 216. Movable sleeve; 217. Stop block; 217-1. Vent hole; 22. Driving component; 221. Cylinder; 222. Fixed sleeve; 223. Limiting column; 221-1. Limiting hole; 224. Electromagnet; 225. Guide column; 226. Guide rail; 227. Connecting column; 228. Slide rail; 23. Rotating part; 231. Rotating column; 232. Support block; 233. 234. Rotating sleeve; 235. Gear; 24. Tooth plate; 24. Connector; 241. Positioning sleeve; 242. Support frame; 243. Locking block; 244. Tooth block; 245. Sensing ball; 25. Locking element; 251. Insert sleeve; 252. Insert post; 26. Snap-fit ​​element; 261. Fixed frame; 262. Insert block; 234-1. Slot; 263. Pressing sleeve; 27. Locking element; 271. Movable post; 231-1. Chamber; 272. Rotating plate; 273. Locking rod; 262-1. Lock hole; 271-1. Spiral groove; 274. Fixed shaft; 275. Fixed rod; 271-2. Fixed groove. Detailed Implementation

[0029] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0032] Example 1 Reference Figures 1-4 This is the first embodiment of the present invention. This embodiment provides a fuel tank with an active baffle. The fuel tank with an active baffle includes a fuel tank 1. A baffle 11 is provided inside the fuel tank 1. There are two baffles 11, which are located on both sides inside the fuel tank 1. The installation direction of the baffles 11 inside the fuel tank 1 is in the direction of the front and rear of the vehicle, so that when the baffles 11 are moved, they move towards the front and rear of the vehicle, respectively. An extended wing plate 12 is provided on one side of the baffle 11. Two extended wing plates 12 are provided on one baffle 11. The two extended wing plates 12 are located at both ends of the baffle 11 and are located near the middle of the fuel tank 1. Both the baffle 11 and the extended wing plates 12 are provided with through holes.

[0033] When the vehicle shakes slightly, the two baffles 11 will move with the swaying of the oil. During the movement, the relative speed between the two can be reduced to avoid secondary vibration caused by rigid collision. With the help of the friction between the baffles 11 and the inner wall of the oil tank 1 and the fluid flow damping, the swaying kinetic energy can be quickly dissipated and the energy accumulation can be suppressed. At the same time, the resonance and vibration noise of the oil tank are reduced, and the normal flow of oil is not hindered, ensuring stable fuel supply and improving driving comfort.

[0034] At this time, the extended wing plate 12 is in contact with the side of the baffle 11 to prevent the extended wing plate 12 from increasing the moving resistance of the baffle 11. This ensures that the baffle 11 can flexibly follow the slight swaying of the oil, play a dynamic buffering role, and not aggravate the vibration. It also reduces the obstruction to the normal flow of oil and prevents the extended wing plate 12 from interfering with the fuel circulation and the oil absorption stability of the fuel supply system.

[0035] When the vehicle accelerates or decelerates rapidly, the corresponding baffle 11 moves to the side where the oil accumulates, while the extended wing plates 12 on both sides rotate outward to a position perpendicular to the baffle 11. At this time, the baffle 11 forms a front physical barrier, increasing the blocking area and directly intercepting the unidirectional inertial impact of the oil, significantly reducing the instantaneous force on the tank wall, avoiding fatigue damage and leakage risks. The reverse support force forces the oil to decelerate, reducing the vehicle's center of gravity shift, suppressing body pitch and roll, dispersing local high pressure, stabilizing the free liquid surface, and ensuring fuel supply and driving stability. At this time, the extended wing plates 12 expand the lateral blocking area, preventing the oil from flowing around the sides of the baffle 11 and impacting the tank wall. At the same time, by increasing the force-bearing surface, the local high pressure generated by the oil accumulation is dispersed, improving the balance of the reverse support force, more effectively offsetting the unidirectional inertial impact of the oil, further suppressing the vehicle's center of gravity shift and body pitch, protecting the tank wall from concentrated impacts, stabilizing the free liquid surface, and ensuring smooth fuel supply.

[0036] Auxiliary component 2, located inside the fuel tank 1, includes a movable component 21. The number of movable components 21 corresponds to the number of baffles 11. The movable component 21 includes a fixed frame 211 fixed to one side of the baffle 11. A support platform is fixed above the inside of the fuel tank 1. A support sleeve 212 is fixed to the inner wall of the fuel tank 1. The support sleeve 212 is fixed to the support platform. The fixed frame 211 and the support sleeve 212 are movably connected. The two cooperate to support and position the baffle 11.

[0037] A first spring 213 is fitted on the outer side of the support sleeve 212. The two ends of the first spring 213 are fixed to the fixing frame 211 and the inner wall of the oil tank 1, respectively. When the baffle 11 moves with the oil, it will compress or stretch the first spring 213 through the fixing frame 211. The relative speed between the baffle 11 and the oil can be reduced by the first spring 213 to avoid the rigid collision between the two and the secondary vibration. At the same time, when the vehicle stops, the baffle 11 can be reset.

[0038] A fixed post 214 is fixed to the inner wall of the support sleeve 212, and a piston 215 is fixed to the end of the fixed post 214. A movable sleeve 216 is sleeved on the outside of the piston 215. The movable sleeve 216 is fixed to the inner side of the fixed frame 211. One end of the movable sleeve 216 is open. A stop block 217 is hinged to one side of the movable sleeve 216 through a hinge plate. A vent hole 217-1 is opened on the stop block 217. The vent hole 217-1 is small, which can reduce the airflow entering the movable sleeve 216, thereby damping the movement of the movable sleeve 216.

[0039] When the fixed bracket 211 moves, it will drive the movable sleeve 216 to move outside the piston 215. Since the piston 215 will generate damping when it moves, the damping force will act on the first spring 213, thereby suppressing the high-frequency rebound and resonance of the first spring 213, avoiding the repeated extension and retraction of the first spring 213 that causes the baffle 11 to bounce, making the movement of the baffle 11 more stable, reducing secondary disturbance to the oil, improving the buffer adaptability under small amplitude shaking conditions, and extending the release time of the first spring 213, slowly dissipating the kinetic energy of the oil shaking, further weakening the oil impact force, especially strengthening the attenuation effect of high-frequency small amplitude oscillation, and reducing vibration noise.

[0040] Example 2 Reference Figures 2-4 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0041] Specifically, the auxiliary component 2 also includes a drive component 22. The number of drive components 22 corresponds to the number of baffles 11. The drive component 22 includes a cylinder 221 fixed inside the upper part of the oil tank 1. A speed sensor is installed on the vehicle to detect the vehicle's driving status. A fixing sleeve 222 is fixed to the output end of the cylinder 221. A limit post 223 is inserted into the fixing sleeve 222. A limit hole 221-1 is opened on the inner wall of the fixing frame 211. There are multiple limit holes 221-1, which are evenly distributed in a straight line inside the fixing frame 211. An electromagnet 224 is fixed to the bottom end of the limit post 223 and to the inner wall of the fixing sleeve 222. The two electromagnets 224 are attracted to each other in the initial state.

[0042] When the vehicle accelerates or decelerates rapidly, the speed sensor will energize the electromagnet 224 after recognition, causing the two electromagnets 224 to repel each other and push the limit post 223 upward, so that the limit post 223 is inserted into the limit hole 221-1. Through the cooperation of the two, the fixing sleeve 222 is connected to the fixing frame 211. At this time, the cylinder 221 will start, and through the fixing sleeve 222, it will drive the fixing frame 211 and the baffle 11 to move rapidly, moving the baffle 11 to the oil accumulation side, thereby blocking and intercepting the inertia of the oil through the baffle 11.

[0043] Specifically, a guide post 225 is fixed on one side of the stop block 217, a guide rail 226 is fixed on one side of the movable sleeve 216, the guide rail 226 is arc-shaped, a connecting post 227 is fixed on one side of the limiting post 223, and a slide rail 228 is fixed at the end of the connecting post 227, the slide rail 228 is elongated. When the movable sleeve 216 moves, the guide post 225 will move within the slide rail 228, without hindering the movement of the movable sleeve 216.

[0044] When the limit post 223 moves upward, it will drive the slide rail 228 to move upward through the connecting post 227, and the guide post 225 of the slide rail 228 will move upward along the guide rail 226. In turn, the guide post 225 will drive the stop block 217 to open upward, exposing the opening at the end of the movable sleeve 216. This will increase the air intake inside the movable sleeve 216, thereby eliminating the side damping force when the movable sleeve 216 moves. As a result, the cylinder 221 will not encounter resistance when it drives the baffle 11 to move quickly.

[0045] Example 3 Reference Figure 2 , Figures 5-11 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0046] Specifically, the auxiliary component 2 also includes a rotating component 23. The number of rotating components 23 corresponds to the number of extended wing plates 12. The rotating component 23 includes a rotating column 231 fixed inside the extended wing plate 12. A support block 232 is fixed on one side of the baffle 11. The rotating column 231 is rotatably connected to the support block 232. A torsion spring is fixed on the top of the support block 232. The other end of the torsion spring is fixed to the rotating column 231 to apply a torsional force to the rotating column 231 so that the extended wing plate 12 can always fit against the baffle 11. A limit rod is fixed on one side of the baffle 11 to limit the rotation angle of the extended wing plate 12 so that it can no longer rotate after rotating to be perpendicular to the baffle 11.

[0047] A rotating sleeve 233 is rotatably connected to the outside of the rotating column 231. A gear 234 is provided on the outside of the rotating sleeve 233. A toothed plate 235 is fixed inside the oil tank 1. The gear 234 meshes with the toothed plate 235. When the baffle 11 moves, it will cause the gear 234 to rotate on one side of the toothed plate 235, and drive the rotating sleeve 233 to rotate through the gear 234.

[0048] When the rotating sleeve 233 is connected to the rotating column 231, it will drive the rotating column 231 to rotate, and then the extended wing plate 12 can be driven to rotate to a state perpendicular to the baffle 11 through the rotating column 231.

[0049] Specifically, the auxiliary component 2 also includes a connector 24, the number of which corresponds to the number of rotating components 23. The connector 24 includes a positioning sleeve 241 fixed to the outside of the rotating column 231. A support frame 242 is fixed to one side of the rotating sleeve 233. A locking block 243 is provided inside the support frame 242. A toothed block 244 is fixed inside the positioning sleeve 241. The toothed block 244 is inclined. A sensing ball 245 is provided inside the support frame 242. The sensing ball 245 has a certain weight.

[0050] Both the top of the locking block 243 and the top of the support frame 242 are fixed with connecting blocks. A second spring is fixed between the two connecting blocks. When the rotating sleeve 233 rotates slowly, the second spring will apply a pulling force to the locking block 243, so that it always stays inside the support frame 242.

[0051] When cylinder 221 drives baffle 11 to move rapidly to the oil accumulation side, gear 234 and rotating sleeve 233 will rotate rapidly on one side of tooth plate 235. The centrifugal force generated when rotating sleeve 233 rotates will cause induction ball 245 to push block 243 to move closer to tooth block 244, and make block 243 engage with tooth block 244. At this time, the two can connect rotating sleeve 233 to rotating column 231 through their cooperation, and drive rotating column 231 to rotate.

[0052] Specifically, the auxiliary component 2 also includes a locking member 25, which includes a sleeve 251 fixed to one side of the rotating column 231. The sleeve 251 is symmetrically arranged with the extended wing plate 12, and the inner wall is fixed with a column 252.

[0053] When the extended wing plate 12 rotates to be perpendicular to the baffle 11, it will be in a coaxial state with the insert 252. When the baffle 11 stops moving, the insert 252 will be inserted into the insert sleeve 251. The angle of the extended wing plate 12 can be locked by the cooperation of the two, so that when the baffle 11 is stopped at the edge position, the extended wing plate 12 will not be rotated by the impact of the oil.

[0054] Specifically, the auxiliary component 2 also includes a snap-fit ​​component 26, which includes a fixing frame 261 fixed inside the rotating sleeve 233. A plug 262 is provided inside the fixing frame 261. A slot 234-1 is provided inside the gear 234. The plug 262 engages with the slot 234-1. One end of the plug 262 inside the slot 234-1 is triangular. The two work together to connect the gear 234 and the rotating sleeve 233, so that the gear 234 can drive the rotating sleeve 233 to rotate.

[0055] When the extended wing plate 12 is blocked by the limit rod and cannot continue to rotate, the rotating sleeve 233 also cannot rotate. If the baffle 11 does not stop moving, the gear 234 will continue to rotate, and the insert block 262 will separate from the slot 234-1, so that the rotation of the gear 234 will not be blocked. At the same time, it can also apply a torsional force to the rotating sleeve 233 and the extended wing plate 12, so that the extended wing plate 12 can always be kept at the current angle until the insert post 252 is inserted into the insert sleeve 251.

[0056] A compression sleeve 263 is fixed on one side of the insertion block 262. The compression sleeve 263 is elastic and can deform under force. It is used to apply a pushing force to the insertion block 262 so that the insertion block 262 and the slot 234-1 are engaged more securely.

[0057] Specifically, auxiliary component 2 also includes a locking element 27, which includes a movable column 271. A chamber 231-1 is formed at the top of the rotating column 231, and the movable column 271 is located within the chamber 231-1. A rotating plate 272 is rotatably connected to the top of the movable column 271 via a rotating shaft. A locking rod 273 is fixed to the top of the rotating plate 272. The locking rod 273 can rotate with the insert block 262. A locking hole 262-1 is formed on the insert block 262. The locking rod 273 and the locking hole 262-1 are connected. The locking mechanism engages with the slot 234-1 to lock the insert 262 in place, preventing it from separating from the slot 234-1. This ensures a rigid connection between the gear 234 and the rotating sleeve 233, preventing the extension wing plate 12 from being subjected to oil resistance when the gear 234 drives the rotating sleeve 233 and the extension wing plate 12 to rotate. This would cause the rotational resistance of the rotating sleeve 233 to exceed the elastic force of the compression sleeve 263, thus breaking the connection between the gear 234 and the rotating sleeve 233.

[0058] Specifically, a spiral groove 271-1 is provided on the movable column 271, and a fixed shaft 274 is fixed on one side of the baffle 11. The fixed shaft 274 is movably connected to the spiral groove 271-1. When the rotating column 231 rotates, it will drive the movable column 271 to rotate. At this time, the fixed shaft 274 will slide in the spiral groove 271-1. Through the cooperation of the two, the movable column 271 will move downward. When the extended wing plate 12 rotates to be perpendicular to the baffle 11, the movable column 271 will drive the locking rod 273 to separate from the locking hole 262-1, and release the rigid connection between the gear 234 and the rotating sleeve 233, so that the two can be separated.

[0059] After the locking rod 273 separates from the lock hole 262-1, the end of the locking rod 273 will still be inserted into the fixing frame 261 and will rotate with the fixing frame 261 so that it can be reinserted into the lock hole 262-1.

[0060] Specifically, a fixing rod 275 is fixed at the bottom of the chamber 231-1, and a fixing groove 271-2 is opened at the bottom of the movable column 271. The fixing rod 275 is movably connected to the fixing groove 271-2. Both the fixing rod 275 and the fixing groove 271-2 are rectangular.

[0061] When in use, when the vehicle shakes slightly, the two baffles 11 will move with the sloshing of the oil. During the movement, the relative speed between the two can be reduced, avoiding secondary vibration caused by rigid collision. With the friction between the baffles 11 and the inner wall of the oil tank 1 and the oil, as well as the damping of the fluid flow, the sloshing kinetic energy can be quickly dissipated, suppressing energy accumulation. At the same time, the resonance and vibration noise of the oil tank are reduced, and the normal flow of oil is not hindered, ensuring stable fuel supply and improving driving comfort. When the baffles 11 move with the oil, the first spring 213 will be compressed or stretched through the fixing bracket 211. The relative speed between the baffles 11 and the oil can be reduced by the first spring 213, avoiding secondary vibration caused by rigid collision between the two.

[0062] When the fixed bracket 211 moves, it will drive the movable sleeve 216 to move outside the piston 215. Since the piston 215 will generate damping when it moves, the damping force will act on the first spring 213, thereby suppressing the high-frequency rebound and resonance of the first spring 213, avoiding the repeated extension and retraction of the first spring 213 that causes the baffle 11 to bounce, making the movement of the baffle 11 more stable, reducing secondary disturbance to the oil, improving the buffer adaptability under small amplitude shaking conditions, and extending the release time of the first spring 213, slowly dissipating the kinetic energy of the oil shaking, further weakening the oil impact force, especially strengthening the attenuation effect of high-frequency small amplitude oscillation, and reducing vibration noise.

[0063] When the vehicle accelerates or decelerates rapidly, the speed sensor identifies the event and energizes the electromagnet 224. This causes the two electromagnets 224 to repel each other, pushing the limit post 223 upwards so that it inserts into the limit hole 221-1. Through their cooperation, the fixing sleeve 222 is connected to the fixing bracket 211. At this time, the cylinder 221 starts and drives the fixing bracket 211 and the baffle 11 to move rapidly through the fixing sleeve 222. The baffle 11 is then moved to the oil accumulation side, forming a front physical barrier that increases the blocking area and directly intercepts the unidirectional inertial impact of the oil. This significantly reduces the instantaneous stress on the tank wall, avoiding fatigue damage and leakage risks. The reverse support force forces the oil to decelerate, reducing the vehicle's center of gravity shift, suppressing vehicle pitch and roll, dispersing local high pressure, stabilizing the free liquid surface, and ensuring fuel supply and driving stability.

[0064] When cylinder 221 drives baffle 11 to move rapidly to the oil accumulation side, gear 234 and rotating sleeve 233 will rotate rapidly on one side of toothed plate 235. The centrifugal force generated by the rotation of rotating sleeve 233 will cause induction ball 245 to push block 243 to move closer to toothed block 244, and make block 243 engage with toothed block 244. At this time, the two can connect rotating sleeve 233 to rotating column 231 through their cooperation, and drive rotating column 231 to rotate. The rotating column 231 drives extended wing plate 12 to rotate to a state perpendicular to baffle 11. At this time, the extended wing plate 12 expands the lateral blocking area, preventing oil from flowing around the sides of baffle 11 and impacting the tank wall. At the same time, by increasing the force surface, the local high pressure generated by oil accumulation is dispersed, the balance of reverse support force is improved, and the unidirectional inertial impact of oil is more effectively offset, further suppressing the vehicle's center of gravity shift and body pitch. This protects the wall of fuel tank 1 from concentrated impact and stabilizes the free liquid surface, ensuring smooth fuel supply.

[0065] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A fuel tank with an active baffle, characterized in that: include, The oil tank (1) is provided with a baffle (11) inside the oil tank (1) and an extension wing plate (12) is provided on one side of the baffle (11). An auxiliary component (2) is disposed inside the oil tank (1) and includes a movable component (21). The movable component (21) includes a fixed frame (211) fixed to one side of the baffle (11). A support sleeve (212) is fixed to the inner wall of the oil tank (1). A first spring (213) is sleeved on the outer side of the support sleeve (212). The two ends of the first spring (213) are fixed to the fixed frame (211) and the inner wall of the oil tank (1) respectively. A fixed column (214) is fixed to the inner wall of the support sleeve (212). A piston (215) is fixed to the end of the fixed column (214). A movable sleeve (216) is sleeved on the outer side of the piston (215). The movable sleeve (216) is fixed to the inner side of the fixed frame (211). One end of the movable sleeve (216) is open. A stop block (217) is hinged to one side of the movable sleeve (216) through a hinge plate. A vent hole (217-1) is opened on the stop block (217). The auxiliary component (2) also includes a driving component (22), which includes a cylinder (221) fixed inside the upper part of the oil tank (1). A fixing sleeve (222) is fixed at the output end of the cylinder (221). A limit post (223) is inserted into the fixing sleeve (222). A limit hole (221-1) is opened on the inner wall of the fixing frame (211). An electromagnet (224) is fixed at the bottom end of the limit post (223) and on the inner wall of the fixing sleeve (222).

2. The fuel tank with an active baffle as described in claim 1, characterized in that: A guide post (225) is fixed on one side of the stop block (217), a guide rail (226) is fixed on one side of the movable sleeve (216), a connecting post (227) is fixed on one side of the limiting post (223), and a slide rail (228) is fixed at the end of the connecting post (227).

3. The fuel tank with an active baffle as described in claim 2, characterized in that: The auxiliary component (2) also includes a rotating component (23), which includes a rotating column (231) fixed inside the extended wing plate (12), a support block (232) fixed on one side of the baffle (11), the rotating column (231) being rotatably connected to the support block (232), a rotating sleeve (233) being rotatably connected to the outside of the rotating column (231), a gear (234) being provided on the outside of the rotating sleeve (233), and a toothed plate (235) being fixed inside the oil tank (1), the gear (234) meshing with the toothed plate (235).

4. The fuel tank with an active baffle as described in claim 3, characterized in that: The auxiliary component (2) also includes a connector (24), which includes a positioning sleeve (241) fixed to the outside of the rotating column (231), a support frame (242) fixed on one side of the rotating sleeve (233), a locking block (243) provided inside the support frame (242), a toothed block (244) fixed inside the positioning sleeve (241), and a sensing ball (245) provided inside the support frame (242).

5. The fuel tank with an active baffle as described in claim 4, characterized in that: The auxiliary component (2) also includes a locking element (25), which includes a sleeve (251) fixed to one side of the rotating column (231), and a column (252) fixed to the inner wall.

6. The fuel tank with an active baffle as described in claim 5, characterized in that: The auxiliary component (2) also includes a snap-fit ​​component (26), which includes a fixed frame (261) fixed inside the rotating sleeve (233). A plug (262) is provided inside the fixed frame (261). A slot (234-1) is opened inside the gear (234). The plug (262) engages with the slot (234-1). A compression sleeve (263) is fixed on one side of the plug (262).

7. The fuel tank with an active baffle as described in claim 6, characterized in that: The auxiliary component (2) also includes a locking element (27), which includes a movable column (271). The top of the rotating column (231) has a cavity (231-1). The movable column (271) is located in the cavity (231-1). The top of the movable column (271) is rotatably connected to a rotating plate (272) via a rotating shaft. A locking rod (273) is fixed on the top of the rotating plate (272). A locking hole (262-1) is opened on the insert (262). The locking rod (273) engages with the locking hole (262-1).

8. The fuel tank with an active baffle as described in claim 7, characterized in that: The movable column (271) has a spiral groove (271-1), and a fixed shaft (274) is fixed on one side of the baffle (11). The fixed shaft (274) is movably connected to the spiral groove (271-1).

9. The fuel tank with an active baffle as described in claim 8, characterized in that: A fixing rod (275) is fixed at the bottom of the chamber (231-1), and a fixing groove (271-2) is opened at the bottom of the movable column (271). The fixing rod (275) is movably connected to the fixing groove (271-2).

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