An engine hood assembly and a vehicle

Abstract

The application relates to an engine cover assembly and a vehicle, and relates to the automobile field, and aims to solve the problem of high vehicle maintenance cost caused by the difficulty of the lifter in recovery in the related art. The engine cover assembly comprises a cover plate, a lock catch assembly and a hinge assembly. The lock catch assembly comprises a sliding piece and a locking piece, the sliding piece is connected with the front end of the cover plate, and the locking piece is in sliding connection with the sliding piece. The hinge assembly comprises a sliding block, a sliding arm, a fixed arm and a locking device, the sliding block is connected with the rear end of the cover plate, the sliding arm is in sliding connection with the sliding block, the fixed arm is in rotary connection with the sliding arm, and the locking device has an unlocking state and a locking state. In the unlocking state, the sliding block can slide relative to the sliding arm between a first position and a second position, and the first position is located between the second position and the front end. In the locking state, the locking piece can lock the sliding block to the first position. The engine cover assembly in the application is used for covering the opening on the engine compartment.

Description

Technical Field

[0001] This application relates to the automotive field, and more particularly to the field of engine hood technology, specifically to an engine hood assembly and a vehicle. Background Technology

[0002] Pedestrian injuries account for a significant proportion of traffic accident casualties, making them a major group of victims. To reduce the impact of vehicle collisions on pedestrians, vehicle hoods are typically designed with a lift mechanism, equipped with a lifter for raising the hood. Before or after a collision, the rear of the hood can be raised and maintained at a certain height, creating an energy-absorbing space between the hood and the engine compartment to dissipate collision energy and reduce head and leg injuries to pedestrians.

[0003] In related technologies, the lift contains a propellant tube that detonates before or after a collision, providing power to raise the hood. However, the detonation of the propellant tube is a one-time event, and the lift cannot be restored after detonation, requiring replacement, resulting in high vehicle repair costs. Summary of the Invention

[0004] This application provides an engine hood assembly and a vehicle to solve the problem of high vehicle maintenance costs caused by the difficulty in resetting the lift in related technologies. The technical solution of this application is as follows:

[0005] According to a first aspect of this application, an engine hood assembly is provided, including a cover plate, a latching assembly, and a hinge assembly, wherein the cover plate has a front end and a rear end arranged along a first direction. The latching assembly includes a sliding member and a locking member, the sliding member being connected to the front end, and the locking member being slidably connected to the sliding member. The sliding member is slidable relative to the locking member along the first direction between a first locked position and a first unlocked position, the first unlocked position being located between the first locked position and the rear end. The hinge assembly includes a slider, a sliding arm, a fixed arm, and a locking device, the slider being connected to the rear end, and the sliding arm being slidably connected to the slider. The slider is slidable relative to the sliding arm along the first direction between a first position and a second position, the first position being located between the second position and the front end. The fixed arm is rotatably connected to the sliding arm. The rotation axis of the sliding arm is perpendicular to the first direction and the thickness direction of the cover plate. The locking device has an unlocked state and a locked state; in the unlocked state, the slider is slidable relative to the sliding arm; in the locked state, the locking member can lock the slider to the first position.

[0006] According to the aforementioned technical means, using the engine hood assembly of this application, under normal conditions, the locking device can be controlled to switch to the locked state to lock the slider to the first position, thereby preventing the cover from sliding relative to the sliding arm. In this way, the cover can rotate relative to the rotation axis of the sliding arm to open or close the vehicle's engine compartment, thus achieving normal opening and closing of the engine compartment. When the vehicle is about to collide with a pedestrian or after a collision has occurred, the locking device can be controlled to switch to the unlocked state to release the locking effect of the locking member on the slider, allowing the slider to slide relative to the sliding arm. In this way, the cover can slide relative to the vehicle body in a first direction to convert some of the collision energy into the kinetic energy of the cover, thereby reducing the collision injury to the pedestrian. Afterwards, simply sliding the slider to the first position and switching the locking device to the locked state will re-lock the slider to the first position to achieve normal opening and closing of the engine compartment. This facilitates the restoration of the engine hood assembly after a vehicle collision, helping to reduce vehicle maintenance costs.

[0007] In one possible implementation, the engine hood assembly includes a plurality of hinge assemblies, which are spaced apart along a second direction. This second direction is parallel to the rotation axis of the sliding arm, and the rotation axes of the sliding arms of the plurality of hinge assemblies are collinear.

[0008] Based on the aforementioned technical means, on the one hand, multiple hinge components can improve the stability of the cover's rotation during the opening and closing of the engine compartment. On the other hand, multiple hinge components can also make the sliding process of the cover more stable and smoother when the vehicle is about to collide with a pedestrian or after a collision has occurred, thereby converting more collision energy into the kinetic energy of the cover and thus reducing the collision injury to the pedestrian.

[0009] In one possible implementation, the hinge assembly includes a plurality of sliders, which are spaced apart along a first direction.

[0010] Based on the aforementioned technical means, multiple sliders can make the sliding process of the cover plate more stable and smoother when a vehicle is about to collide with a pedestrian or after a collision has occurred, so as to convert more collision energy into the kinetic energy of the cover plate, thereby further reducing the collision injury to pedestrians.

[0011] In one possible implementation, the sliding arm has a groove on each side in the second direction, and the grooves extend along the first direction. The second direction is parallel to the rotation axis of the sliding arm. The hinge assembly also includes multiple rollers, with at least one roller housed in each groove, and the rollers are rotatably connected to the slider. The rotation axes of the rollers are parallel to the second direction, and both ends of the rollers in the thickness direction of the cover plate contact the inner wall of the groove.

[0012] Based on the aforementioned technical means, multiple rollers can reduce the friction force experienced by the slider during the sliding process, thereby making the sliding process of the cover plate smoother, converting more collision energy into the kinetic energy of the cover plate, and thus reducing the collision injury of vehicles to pedestrians.

[0013] In one possible implementation, the sliding arm includes a connecting arm, a slide rail, a first limiting plate, and a second limiting plate. The connecting arm is rotatably connected to the fixed arm, and the slide rail is connected to the connecting arm. A groove is disposed on the slide rail and extends through the slide rail in a first direction. The first limiting plate is disposed on the side of the slide rail near the front end, and one end of the groove is located on the first limiting plate. The second limiting plate is disposed on the side of the slide rail away from the front end, and the other end of the groove is located on the second limiting plate. At least one of the first and second limiting plates is detachably connected to the slide rail.

[0014] Using the aforementioned technical means, the first or second limiting plate can be removed from the slide rail to facilitate the assembly and disassembly of the rollers and sliders. This makes it easier to repair or replace the rollers and sliders.

[0015] In one possible implementation, the slide rail has a mounting hole, and the locking device includes a limiting block and a drive assembly. The limiting block passes through the mounting hole and is slidably connected to the slide rail. The limiting block can move relative to the slide rail along the extension direction of the mounting hole, causing the limiting block to retract or extend out of the mounting hole. The drive assembly is connected to the limiting block and is used to drive the limiting block to move along the extension direction of the mounting hole. Specifically, when the slider is in the first position and the locking device is in the locked state, at least one slider contacts the surface of the first limiting plate near the second limiting plate, and at least one slider contacts the surface of the limiting block near the first limiting plate.

[0016] According to the above technical means, when the slider is in the first position and the locking device is in the locked state, the first limiting plate can prevent the slider from sliding away from the second limiting plate, and the limiting block can prevent the slider from sliding towards the second limiting plate. In this way, the slider can be locked to the first position. Based on this, simply controlling the drive assembly to drive the limiting block to retract into the mounting hole can release the locking device from the slider, allowing the slider to slide between the first and second positions. Afterwards, sliding the slider to the first position and controlling the drive assembly to drive the limiting block to extend out of the mounting hole can re-lock the slider to the first position.

[0017] In one possible implementation, the drive assembly includes a first motor, a reel, a pull rope, and a compression spring. The first motor is connected to a sliding arm, and the reel is connected to the output shaft of the first motor. One end of the pull rope is connected to a limiting block, and the other end passes through a mounting hole and connects to the reel, with the pull rope wound around the reel. The compression spring is disposed within the mounting hole and is located on the side of the limiting block opposite to the cover plate. One end of the compression spring is connected to a slide rail, and the other end is connected to the limiting block.

[0018] According to the aforementioned technical means, controlling the operation of the first motor will cause the winding reel to rotate, winding more rope onto the reel. This will cause the limit block to compress the spring, retracting the limit block into the mounting hole and releasing the locking device from the slider. Afterward, when the slider is slid to the first position, the first motor will stop running, and the spring will cause the limit block to extend out of the mounting hole, locking the slider to the first position.

[0019] In one possible implementation, the limiting block includes a blocking portion and a telescopic portion. The blocking portion passes through a mounting hole and is connected to a compression spring. The two end faces of the blocking portion in a first direction are flat, and these flat faces are parallel to the surface of the slider near the second limiting plate. The telescopic portion is connected to the blocking portion and is located on the side of the blocking portion away from the compression spring. The surface of the telescopic portion away from the blocking portion is an arc surface, protruding towards the cover plate, and its two ends are respectively connected to the two end faces of the blocking portion in the first direction. In the locked state, the blocking portion is at least partially located on the side of the slide rail near the cover plate. In the unlocked state, the telescopic portion is at least partially located within the mounting hole.

[0020] According to the aforementioned technical means, when the slider is in the first position and the locking device is in the locked state, the end face of the blocking part near the first limiting plate can fit against the surface of the slider to prevent the slider from sliding to the second position, thereby locking the slider to the first position. When the vehicle is about to collide with a pedestrian or after a collision has occurred, simply switching the locking device to the unlocked state, so that the telescopic part is at least partially located within the mounting hole, allows the slider to press against the arc surface on the telescopic part, causing the telescopic part to retract into the mounting hole, allowing the slider to slide between the first and second positions. In this way, the collision energy can be converted into the kinetic energy of the cover plate, reducing the collision injury to the pedestrian.

[0021] In one possible implementation, the slider has a through hole, and the engine hood assembly further includes a connector and fasteners. The connector includes a fixing plate, a first connecting plate, and a second connecting plate. The fixing plate is connected to the cover plate and is located below the cover plate. The first connecting plate is connected to the fixing plate and has a first connecting hole. The second connecting plate is connected to the fixing plate and has a second connecting hole. The second connecting plate is positioned opposite to the first connecting plate, and the slider is located between the first and second connecting plates. Fasteners pass through the first connecting hole, the through hole, and the second connecting hole, and the fasteners are detachably connected to the connector.

[0022] According to the aforementioned technical means, the slider can be installed onto the cover plate using fasteners and connectors, thereby achieving a detachable connection between the hinge assembly and the cover plate. This facilitates the removal of the hinge assembly from the cover plate for repair or replacement.

[0023] In one possible implementation, a slider is disposed between the locking member and the cover plate, and the slider includes a first sliding block and a second sliding block. The first sliding block is slidably connected to the locking member and is slidable relative to the locking member along a first direction between a first locked position and a first unlocked position. The second sliding block is disposed between the first sliding block and the cover plate and is connected to the front end. The second sliding block is slidably connected to the first sliding block and is slidable relative to the first sliding block along a first direction between a second locked position and a second unlocked position, the second unlocked position being located between the second locked position and the rear end.

[0024] According to the above-mentioned technical means, the first sliding block and the second sliding block can increase the sliding distance of the cover plate in the first direction, which is conducive to converting more collision energy into the kinetic energy of the cover plate, thereby reducing the collision injury of the vehicle to the pedestrian.

[0025] In one possible implementation, the latch assembly further includes a locking device having an active state and a locked state. In the active state, a first sliding block is slidable relative to a locking member, and a second sliding block is slidable relative to the first sliding block. In the locked state, the locking device is capable of locking the first sliding block to a first locked position and locking the second sliding block to a second locked position.

[0026] According to the aforementioned technical means, under normal conditions, switching the locking device to the locked state locks the first sliding block to the first locked position and the second sliding block to the second locked position, thus locking the sliding member to the first locked position. This prevents the sliding member from sliding relative to the locking member, thereby preventing the cover from sliding relative to the vehicle body in the first direction. At this time, both the latch assembly and the hinge assembly can prevent the cover from sliding relative to the vehicle body in the first direction, thereby improving the stability of the cover rotation during the opening and closing of the engine compartment. In addition, when the vehicle is about to collide with a pedestrian or after a collision has occurred, switching the locking device to the active state and the locking device to the unlocked state allows the cover to slide relative to the vehicle body, converting the collision energy into the kinetic energy of the cover, thereby reducing the collision injury to the pedestrian.

[0027] In one possible implementation, the locking device is located on the side of the sliding member away from the rear end. The locking device includes a second motor and a locking plate. The second motor is connected to the locking member, and the locking plate is connected to the output shaft of the second motor. The locking plate has multiple limiting teeth located on the periphery of the locking plate and spaced apart circumferentially. The sliding member also includes a first limiting post and a second limiting post. The first limiting post is connected to a first sliding block and located on the side of the first sliding block away from the rear end. A first limiting groove is provided at the end of the first limiting post away from the first sliding block. The second limiting post is connected to a second sliding block and located on the side of the second sliding block away from the rear end. A second limiting groove is provided at the end of the second limiting post away from the second sliding block. When the first sliding block is in a first locked position and the second sliding block is in a second locked position, the second motor can drive the locking plate to rotate, causing at least some of the limiting teeth to move into or out of the first and second limiting grooves. In the active state, multiple limiting teeth are located outside the first and second limiting grooves. In the locked state, at least one limiting tooth is located in the first limiting groove and at least one limiting tooth is located in the second limiting groove.

[0028] According to the above technical means, when the first sliding block is in the first locked position and the second sliding block is in the second locked position, the second motor is controlled to operate, thereby driving the locking plate to rotate. This causes at least one limiting tooth to rotate into the first limiting groove and at least one limiting tooth to rotate into the second limiting groove. The limiting tooth in the first limiting groove can then interfere with the first limiting post to lock the first sliding block to the first locked position; the limiting tooth in the second limiting groove can then interfere with the second limiting post to lock the second sliding block to the second locked position. In this way, the sliding member can be locked to the first locked position. Based on this, the second motor is controlled to operate, thereby driving the locking plate to rotate, causing all the limiting teeth to rotate out of the first and second limiting grooves, thereby releasing the lock on the sliding member and allowing the sliding member to slide relative to the locking member in the first direction.

[0029] In one possible implementation, the locking assembly further includes a baffle connected to the locking member and located between the locking piece and the sliding member. The baffle has a first clearance hole and a second clearance hole. When the first sliding block is in a first locked position and the second sliding block is in a second locked position, the baffle contacts both the first and second sliding blocks, and a first limiting post passes through the first clearance hole and a second limiting post passes through the second clearance hole.

[0030] According to the above technical means, when the first sliding block slides to the first locking position, the baffle can prevent the first sliding block from continuing to slide away from the first unlocking position and prevent the second sliding block from continuing to slide away from the second unlocking position, so that the first sliding block stays in the first locking position and the second sliding block stays in the second locking position. In this way, it is convenient for the limiting teeth of the locking piece to move into or out of the first limiting groove and the second limiting groove.

[0031] In one possible implementation, the locking assembly further includes a first resilient restoring member. One end of the first resilient restoring member is connected to the locking member, and the other end is connected to the first sliding block. The first resilient restoring member is used to provide a resilient force to the first sliding block pointing towards the first locked position when the first sliding block deviates from the first locked position. And / or, the locking assembly further includes a second resilient restoring member, one end of which is connected to the first sliding block, and the other end of which is connected to the second sliding block. The second resilient restoring member is used to provide a resilient force to the second sliding block pointing towards the second locked position when the second sliding block deviates from the second locked position.

[0032] According to the above-mentioned technical means, the first elastic recovery member and the second elastic recovery member can achieve buffering during the sliding of the cover plate towards the second position, thereby reducing the impact of the cover plate on the hinge assembly and thus reducing the risk of damage to the hinge assembly.

[0033] According to a second aspect of this application, a vehicle is provided, comprising a body and an engine hood assembly. The body has an engine compartment with an opening, and the engine hood assembly is connected to the body and covers the opening. The engine hood assembly is the same as the engine hood assembly described in the first aspect above.

[0034] Therefore, the above-mentioned technical features of this application have the following beneficial effects:

[0035] (1) Using the engine hood assembly of this application, under normal conditions, the locking device can be controlled to switch to the locked state to lock the slider to the first position, thereby preventing the cover from sliding relative to the sliding arm. In this way, the cover can rotate relative to the rotation axis of the sliding arm to open or close the vehicle's engine compartment, thus achieving normal opening and closing of the engine compartment. When the vehicle is about to collide with a pedestrian or after a collision has occurred, the locking device can be controlled to switch to the unlocked state to release the locking effect of the locking member on the slider, allowing the slider to slide relative to the sliding arm. In this way, the cover can slide relative to the vehicle body in a first direction to convert some of the collision energy into the kinetic energy of the cover, thereby reducing the collision injury to the pedestrian. Afterwards, simply sliding the slider to the first position and switching the locking device to the locked state will re-lock the slider to the first position to achieve normal opening and closing of the engine compartment. This facilitates the restoration of the engine hood assembly after a vehicle collision, which helps reduce vehicle maintenance costs.

[0036] (2) On the one hand, multiple hinge components can improve the stability of the cover rotation during the opening and closing of the engine compartment. On the other hand, multiple hinge components can also make the sliding process of the cover more stable and smooth when the vehicle is about to collide with the pedestrian or after the collision has occurred, thereby converting more collision energy into the kinetic energy of the cover and reducing the collision injury to the pedestrian.

[0037] (3) Multiple sliders can make the sliding process of the cover plate more stable and smoother when the vehicle is about to collide with the pedestrian or after the collision occurs, so as to convert more collision energy into the kinetic energy of the cover plate, thereby further reducing the collision damage to pedestrians.

[0038] (4) Multiple rollers can reduce the friction force on the slider during the sliding process, so that the sliding process of the cover plate is smoother, so as to convert more collision energy into the kinetic energy of the cover plate, thereby reducing the collision injury of the vehicle to the pedestrian.

[0039] (5) The first or second limiting plate can be removed from the slide rail for the assembly and disassembly of the rollers and sliders. This facilitates the maintenance or replacement of the rollers and sliders.

[0040] (6) When the slider is in the first position and the locking device is locked, the first limiting plate prevents the slider from sliding away from the second limiting plate, and the limiting block prevents the slider from sliding closer to the second limiting plate. This locks the slider to the first position. Based on this, by controlling the drive assembly to retract the limiting block into the mounting hole, the locking effect of the locking device on the slider can be released, allowing the slider to slide between the first and second positions. Afterward, by sliding the slider to the first position and controlling the drive assembly to extend the limiting block out of the mounting hole, the slider can be locked back to the first position.

[0041] (7) Control the first motor to run. The first motor will drive the winding reel to rotate, so that more rope is wound on the winding reel, thereby driving the limit block to compress the pressure spring, causing the limit block to retract into the mounting hole, and thus releasing the locking device from locking the slider. After that, slide the slider to the first position, control the first motor to stop running, and the pressure spring will drive the limit block to extend out of the mounting hole, thereby locking the slider to the first position.

[0042] (8) When the slider is in the first position and the locking device is in the locked state, the end face of the blocking part near the first limiting plate can fit against the surface of the slider to prevent the slider from sliding to the second position, thereby locking the slider to the first position. When the vehicle is about to collide with a pedestrian or after a collision has occurred, simply switch the locking device to the unlocked state, so that the telescopic part is at least partially located within the mounting hole. The slider can then press against the arc surface on the telescopic part, causing the telescopic part to retract into the mounting hole, allowing the slider to slide between the first and second positions. In this way, the collision energy can be converted into the kinetic energy of the cover plate, thereby reducing the collision injury to the pedestrian.

[0043] (9) The slider can be mounted to the cover plate using fasteners and connectors, thereby enabling a detachable connection between the hinge assembly and the cover plate. This facilitates the removal of the hinge assembly from the cover plate for repair or replacement.

[0044] (10) The first and second sliding blocks can increase the sliding distance of the cover in the first direction, which is conducive to converting more collision energy into the kinetic energy of the cover, thereby reducing the collision damage of the vehicle to the pedestrian.

[0045] (11) Under normal conditions, switching the locking device to the locked state locks the first sliding block to the first locked position and the second sliding block to the second locked position, thereby locking the sliding member to the first locked position. This prevents the sliding member from sliding relative to the locking member, and thus prevents the cover from sliding relative to the vehicle body in the first direction. At this time, both the latch assembly and the hinge assembly can prevent the cover from sliding relative to the vehicle body in the first direction, thereby improving the stability of the cover rotation during the opening and closing of the engine compartment. In addition, when the vehicle is about to collide with a pedestrian or after a collision has occurred, switching the locking device to the active state and the locking device to the unlocked state allows the cover to slide relative to the vehicle body, converting the collision energy into the kinetic energy of the cover, thereby reducing the collision injury to the pedestrian.

[0046] (12) When the first sliding block is in the first locked position and the second sliding block is in the second locked position, the second motor is controlled to run, thereby driving the locking plate to rotate. This causes at least one limiting tooth to rotate into the first limiting groove and at least one limiting tooth to rotate into the second limiting groove. The limiting tooth in the first limiting groove can then interfere with the first limiting post to lock the first sliding block to the first locked position; the limiting tooth in the second limiting groove can then interfere with the second limiting post to lock the second sliding block to the second locked position. In this way, the sliding member can be locked to the first locked position. Based on this, the second motor is controlled to run, thereby driving the locking plate to rotate, causing the limiting teeth to rotate out of both the first and second limiting grooves. This releases the locking of the sliding member, allowing it to slide relative to the locking member in the first direction.

[0047] (13) When the first sliding block slides to the first locking position, the baffle can prevent the first sliding block from continuing to slide away from the first unlocking position and prevent the second sliding block from continuing to slide away from the second unlocking position, so that the first sliding block stays in the first locking position and the second sliding block stays in the second locking position. In this way, it is convenient for the limiting teeth of the locking piece to move into or out of the first limiting groove and the second limiting groove.

[0048] (14) The first elastic recovery member and the second elastic recovery member can achieve buffering during the sliding of the cover plate toward the second position, thereby reducing the impact of the cover plate on the hinge assembly and thus reducing the risk of damage to the hinge assembly.

[0049] It should be noted that the technical effects of any implementation method in the second aspect can be found in the technical effects of the corresponding implementation method in the first aspect, and will not be repeated here.

[0050] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0051] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application, and do not constitute an undue limitation of this application.

[0052] Figure 1 Structural diagrams of the vehicle provided in some embodiments of this application;

[0053] Figure 2 Structural diagrams of the engine hood assembly provided in some embodiments of this application;

[0054] Figure 3 This is a structural diagram of a locking assembly provided in some embodiments of this application;

[0055] Figure 4 Partial structural diagrams of the engine hood assembly provided in some embodiments of this application;

[0056] Figure 5 This is a structural diagram of a locking assembly provided in some embodiments of this application;

[0057] Figure 6 This is a structural diagram of a locking assembly provided in some embodiments of this application;

[0058] Figure 7 Structural diagrams of hinge assemblies provided in some embodiments of this application;

[0059] Figure 8 Structural diagrams of the fixed arm and sliding arm provided in some embodiments of this application;

[0060] Figure 9 Structural diagrams of the slider and roller provided in some embodiments of this application;

[0061] Figure 10 Structural diagrams of hinge assemblies provided in some embodiments of this application;

[0062] Figure 11 Structural diagram of the first limiting plate provided in some embodiments of this application;

[0063] Figure 12 Structural diagrams of the limiting block and driving component provided in some embodiments of this application;

[0064] Figure 13 Partial structural diagrams of the engine hood assembly provided in some embodiments of this application;

[0065] Figure 14 Structural diagrams of connectors provided in some embodiments of this application;

[0066] Figure 15Structural diagrams of the cover plate and connectors provided in some embodiments of this application;

[0067] Figure 16 This is a structural diagram of a locking assembly provided in some embodiments of this application;

[0068] Figure 17 Structural diagrams of the locking device provided in some embodiments of this application;

[0069] Figure 18 Structural diagrams of the locking device provided in some embodiments of this application;

[0070] Figure 19 Partial structural diagrams of the first and second limiting posts provided in some embodiments of this application.

[0071] Wherein, 100-vehicle; 1-body; 2-engine hood assembly; 21-cover plate; 211-front end; 212-rear end; 22-locking assembly; 221-sliding component; 2211-first sliding block; 2212-second sliding block; 2213-second guide rail; 2214-fastening plate; 2215-first limiting post; 2215a-first limiting groove; 2216-second limiting post; 2216a-second limiting groove; 222-locking component; 2221-guide block; 2222-mounting plate; 2223-locking buckle; 2224-first guide rail; 223-locking device; 2231-second motor; 2232-locking piece; 2232a-limiting tooth; 224-baffle; 225-first elastic recovery component; 226-second elastic recovery component; 2 3-Hinge assembly; 231-Slider; 2311-Through hole; 232-Sliding arm; 2321-Slide groove; 2322-Connecting arm; 2323-Slide rail; 2324-First limiting plate; 2325-Second limiting plate; 2326-Mounting hole; 233-Fixing arm; 234-Locking device; 2341-Limiting block; 2341a-Blocking part; 2341b-Telescopic part; 2342-Drive assembly; 2342a-First motor; 2342b-Coil reel; 2342c-Pull rope; 2342d-Compression spring; 2342e-Guide block; 235-Roller; 24-Connector; 241-Fixing plate; 242-First connecting plate; 2421-First connecting hole; 243-Second connecting plate; 2431-Second connecting hole; 25-Fastener. Detailed Implementation

[0072] To enable those skilled in the art to better understand the technical solutions of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0073] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0074] In traffic accident casualties statistics, pedestrian injuries typically account for the largest proportion, making them a significant group of victims. With increasing emphasis on pedestrian safety in China, domestic regulations and various third-party evaluation agencies have incorporated pedestrian safety into their evaluation systems. Furthermore, OEMs are investing more in vehicle design during development to improve pedestrian protection performance and reduce injuries during collisions.

[0075] Currently, to reduce pedestrian collision injuries, vehicle hoods are typically designed with a lift mechanism, equipped with a lifter for raising the hood. In the event of an impending collision or after a collision, the rear of the hood can be raised and maintained at a certain height, creating an energy-absorbing space between the hood and the engine compartment to dissipate collision energy and reduce head and leg injuries to pedestrians. The lifter contains a propellant tube that detonates before or after a collision, providing the power to raise the hood. However, the propellant tube detonation is a one-time event; once detonated, the lifter is difficult to restore and must be replaced, resulting in high vehicle repair costs.

[0076] Based on this, see Figure 1 , Figure 1 This is a structural diagram of a vehicle 100 provided in some embodiments of this application. This application provides a vehicle 100 to solve the problem of high vehicle maintenance costs caused by the difficulty in restoring the lift in related technologies.

[0077] It should be noted that the vehicle 100 provided in this application embodiment can be any power-driven vehicle 100, such as a fuel vehicle or a new energy vehicle. The specific vehicle can be selected according to the actual situation, and this application does not make any specific limitation.

[0078] In some embodiments, see Figure 1 The vehicle 100 includes a body 1, which has an engine compartment with an opening, and the engine compartment can be used to install the engine and other components of the vehicle 100.

[0079] For example, the engine compartment is located at the front of the vehicle 100, and the opening is located on the upper side of the vehicle 100.

[0080] In addition, the vehicle 100 also includes an engine hood assembly 2, which is connected to the vehicle body 1 and covers the opening. In this way, the engine hood assembly 2 can protect the engine and other components in the engine compartment.

[0081] In some embodiments, see Figure 2 , Figure 2 This is a structural diagram of an engine hood assembly 2 provided in some embodiments of this application. The engine hood assembly 2 includes a cover plate 21, a latching assembly 22, and a hinge assembly 23. The cover plate 21 has a front end 211 and a rear end 212 arranged along a first direction X. The latching assembly 22 is disposed at the front end 211 of the cover plate 21, and the hinge assembly 23 is disposed at the rear end 212 of the cover plate 21.

[0082] It should be noted that the first direction X can be the length direction of the vehicle body, or the first direction X can be set to form an acute angle with the length direction of the vehicle body, or the first direction X can be set to form an acute angle with the width direction of the vehicle body, or the first direction X can be set to form an acute angle with the height direction of the vehicle body. The specific rotation can be adjusted according to the actual situation, and this application does not impose any specific limitations on this.

[0083] The cover plate 21 can be connected to the vehicle body 1 (e.g., via the locking assembly 22 and the hinge assembly 23) Figure 1 (As shown) the connection, so that the cover plate 21 covers the opening.

[0084] Understandably, the vehicle 100 may also include a hood lock, which is mounted on the vehicle body 1 and engages with the latch assembly 22 to lock the front end 211 of the cover 21 to the vehicle body 1, thereby connecting the front end 211 of the cover 21 to the vehicle body 1. Of course, the locking of the cover 21 can also be released, allowing the front end 211 of the cover 21 to be separated from the vehicle body 1.

[0085] Furthermore, the rear end 212 of the cover plate 21 can be hinged to the vehicle body 1 via the hinge assembly 23. In this way, when the front end 211 of the cover plate 21 is separated from the vehicle body 1, the cover plate 21 can be rotated relative to the rear end 212 to open or close the opening of the engine compartment. This facilitates the maintenance of components such as the engine in the engine compartment.

[0086] In some embodiments, see Figure 3 , Figure 3This is a structural diagram of the locking assembly 22 provided in some embodiments of this application. The locking assembly 22 includes a sliding member 221 and a locking member 222. The sliding member 221 is connected to the front end 211 of the cover plate 21, and the locking member 222 is slidably connected to the sliding member 221 and is used to connect to the vehicle body 1. That is, the sliding member 221 can be connected to the vehicle body 1 through the locking member 222.

[0087] The slider 221 can slide relative to the locking member 222 along the first direction X between a first locked position and a first unlocked position, with the first unlocked position located between the first locked position and the rear end 212.

[0088] It is understood that the sliding member 221 can be located between the locking member 222 and the cover plate 21, or it can be located on one side of the locking member 222 in the width direction of the vehicle 100. The specific choice can be made according to the actual situation, and this application does not make any specific limitation.

[0089] like Figure 4 As shown, Figure 4 This is a partial structural diagram of the engine hood assembly 2 provided in some embodiments of this application. The following description, using the example of a sliding member 221 disposed between a locking member 222 and a cover plate 21, illustrates some embodiments of this application.

[0090] In some embodiments, see Figure 5 , Figure 5 This is a structural diagram of the locking assembly 22 provided in some embodiments of this application. The locking member 222 includes a guide block 2221, a mounting plate 2222, and a latch 2223 that are interconnected, and the guide block 2221, the mounting plate 2222, and the latch 2223 are along the cover plate 21 (e.g., Figure 4 The thickness direction is arranged sequentially (as shown).

[0091] Among them, the guide block 2221 is slidably connected to the sliding member 221, and the latch 2223 is used to connect with the body 1, for example, the latch 2223 is used to connect with the hood lock.

[0092] Based on this, see Figure 6 , Figure 6 This is a structural diagram of the locking assembly 22 provided in some embodiments of this application. On the two surfaces of the guide block 2221 and the slider 221 that are close to each other, one surface is provided with a first guide rail 2224 extending along the first direction X, and the other surface is provided with a first guide groove extending along the first direction X. The first guide rail 2224 is located in the first guide groove and is used to guide the slider 221 to slide relative to the guide block 2221 along the first direction X.

[0093] For example, such as Figure 6As shown, the first guide rail 2224 is disposed on the surface of the guide block 2221 near the slider 221, and the first guide groove is disposed on the surface of the slider 221 near the guide block 2221.

[0094] In some embodiments, see Figure 7 , Figure 7 This is a structural diagram of a hinge assembly 23 provided in some embodiments of this application. The hinge assembly 23 includes a slider 231, a sliding arm 232, a fixed arm 233, and a locking device 234. The slider 231 and the cover plate 21 (e.g.) Figure 2 The rear end 212 of the (as shown) is connected, the sliding arm 232 is slidably connected to the slider 231, and the sliding arm 232 is rotatably connected to the fixed arm 233. The fixed arm 233 is connected to the vehicle body 1 (as shown). Figure 1 (As shown) connection.

[0095] It should be noted that the rotation axis L1 of the sliding arm 232 is perpendicular to the first direction X and the thickness direction of the cover plate 21.

[0096] The slider 231 can slide relative to the sliding arm 232 along a first direction X between a first position and a second position, with the first position located between the second position and the front end 211. The locking device 234 has an unlocked state and a locked state. In the unlocked state, the slider 231 can slide relative to the sliding arm 232; in the locked state, the locking member 222 can lock the slider 231 to the first position.

[0097] Using the engine hood assembly 2 of this application, under normal conditions, the locking device 234 can be controlled to switch to the locked state to lock the slider 231 to the first position, thereby preventing the cover 21 from sliding relative to the sliding arm 232. In this way, the cover 21 can rotate relative to the rotation axis L1 of the sliding arm 232 to open or close the engine compartment of the vehicle 100, thus achieving normal opening and closing of the engine compartment. When the vehicle 100 is about to collide with a pedestrian or after a collision has occurred, the locking device 234 can be controlled to switch to the unlocked state to release the locking effect of the locking member 222 on the slider 231, allowing the slider 231 to slide relative to the sliding arm 232. In this way, the cover 21 can slide relative to the vehicle body 1 along the first direction X, converting some of the collision energy into the kinetic energy of the cover 21, thereby reducing the collision injury to the pedestrian caused by the vehicle 100. Afterwards, simply sliding the slider 231 to the first position and switching the locking device 234 to the locked state will re-lock the slider 231 to the first position, thus achieving normal opening and closing of the engine compartment. In this way, after a collision, it is easier to restore the engine hood assembly 2, which helps to reduce the maintenance cost of vehicle 100.

[0098] It is understood that the hinge assembly 23 may include one or more sliders 231, which may be selected according to the actual situation, and this application does not make any specific limitation in this regard.

[0099] In the case where the hinge assembly 23 includes multiple sliders 231, the multiple sliders 231 can be spaced apart along the first direction X. The multiple sliders 231 can make the sliding process of the cover plate 21 more stable and smoother when the vehicle 100 is about to collide with the pedestrian or after the collision has occurred, so as to convert more collision energy into the kinetic energy of the cover plate 21, thereby further reducing the collision injury of the vehicle 100 to the pedestrian.

[0100] For example, such as Figure 7 As shown, the hinge assembly 23 includes two sliders 231 spaced apart along a first direction X.

[0101] In addition, the engine hood assembly 2 may include one or more hinge assemblies 23, which may be selected according to the actual situation, and this application does not make specific limitations in this regard.

[0102] In the case where the engine hood assembly 2 includes multiple hinge assemblies 23, the multiple hinge assemblies 23 can be spaced apart along the second direction Y. It should be noted that the second direction Y is parallel to the rotation axis L1 of the sliding arm 232, and the rotation axes L1 of the multiple sliding arms 232 of the multiple hinge assemblies 23 are collinear.

[0103] In this configuration, on the one hand, the multiple hinge assemblies 23 can improve the rotational stability of the cover 21 during the opening and closing of the engine compartment. On the other hand, the multiple hinge assemblies 23 can also make the sliding process of the cover 21 more stable and smoother when the vehicle 100 is about to collide with a pedestrian or after a collision has occurred, thereby converting more collision energy into the kinetic energy of the cover 21, and thus reducing the collision injury of the vehicle 100 to the pedestrian.

[0104] For example, such as Figure 2 As shown, the hinge assembly 23 includes two hinge assemblies 23 spaced apart along the second direction Y.

[0105] It is understood that there are multiple ways to achieve the sliding connection between slider 231 and sliding arm 232, and the specific method can be selected according to the actual situation. This application does not make any specific limitation in this regard.

[0106] For example, such as Figure 8 and Figure 9 As shown, Figure 8 This is a structural diagram of the fixed arm 233 and the sliding arm 232 provided in some embodiments of this application. Figure 9This is a structural diagram of the slider 231 and roller 235 provided in some embodiments of this application. The sliding arm 232 has a groove 2321 extending along the first direction X on each side in the second direction Y. The hinge assembly 23 also includes multiple rollers 235, with at least one roller 235 located in each groove 2321, and the rollers 235 are rotatably connected to the slider 231. The rotation axis L2 of the rollers 235 is parallel to the second direction Y, and both ends of the rollers 235 in the thickness direction of the cover plate 21 contact the inner wall of the groove 2321.

[0107] In this configuration, the multiple rollers 235 can reduce the frictional force experienced by the slider 231 during sliding, thereby making the sliding process of the cover plate 21 smoother, so as to convert more collision energy into the kinetic energy of the cover plate 21, thereby reducing the collision injury of the vehicle 100 to the pedestrian.

[0108] It should be noted that when the hinge assembly 23 includes multiple sliders 231, each slider 231 can be connected to the slide rail 2323 via multiple rollers 235. Specifically, each slider 231 is connected to at least one roller 235 in each slide rail 2321.

[0109] In some embodiments, see Figure 10 , Figure 10 This is a structural diagram of a hinge assembly 23 provided in some embodiments of this application. The sliding arm 232 includes a connecting arm 2322 and a slide rail 2323 that are connected to each other. The connecting arm 2322 is rotatably connected to the fixed arm 233, and a slide groove 2321 is provided on the slide rail 2323.

[0110] Among them, the slide groove 2321 can be provided to pass through the slide rail 2323 along the first direction X.

[0111] Based on this, such as Figure 10 As shown, the sliding arm 232 also includes a first limiting plate 2324 and a second limiting plate 2325. Along the first direction X, the slide rail 2323 is disposed between the first limiting plate 2324 and the second limiting plate 2325, and the two ends of the slide groove 2321 in the first direction X are respectively located on the first limiting plate 2324 and the second limiting plate 2325.

[0112] It should be noted that the first limiting plate 2324 is disposed on the side of the slide rail 2323 near the front end 211, and the second limiting plate 2325 is disposed on the side of the slide rail 2323 away from the front end 211. At least one of the first limiting plate 2324 and the second limiting plate 2325 is detachably connected to the slide rail 2323.

[0113] With this configuration, the first limiting plate 2324 or the second limiting plate 2325 can be removed from the slide rail 2323 to allow for the assembly and disassembly of the roller 235 and the slider 231. This facilitates the maintenance or replacement of the roller 235 and the slider 231.

[0114] For example, such as Figure 11 As shown, Figure 11 This is a structural diagram of the first limiting plate 2324 provided in some embodiments of this application. The first limiting plate 2324 and the slide rail 2323 (e.g.) Figure 10 (As shown) Detachable connection. For example, the first limiting plate 2324 can be connected to the slide rail 2323 by means of screw connection, bolt connection, etc. The specific choice can be made according to the actual situation, and this application does not make specific limitations in this regard.

[0115] Similarly, the second limiting plate 2325 can also be connected to the slide rail 2323 by means of screw connection, bolt connection, etc. The specific choice can be made according to the actual situation, and this application does not make specific limitations in this regard.

[0116] In some embodiments, such as Figure 8 and Figure 10 As shown, the locking device 234 includes a limiting block 2341, and the slide rail 2323 is provided with a mounting hole 2326. The limiting block 2341 passes through the mounting hole 2326 and is slidably connected to the slide rail 2323.

[0117] The limiting block 2341 can move relative to the slide rail 2323 along the extension direction of the mounting hole 2326, so that the limiting block 2341 retracts or extends out of the mounting hole 2326.

[0118] For example, when the locking device 234 is in the locked state, the limiting block 2341 extends out of the mounting hole 2326; when the locking device 234 is in the unlocked state, the limiting block 2341 retracts into the mounting hole 2326.

[0119] It should be noted that, as Figure 10 As shown, when the slider 231 is in the first position and the locking device 234 is in the locked state, at least one slider 231 is in contact with the surface of the first limiting plate 2324 near the second limiting plate 2325, and at least one slider 231 is in contact with the surface of the limiting block 2341 near the first limiting plate 2324.

[0120] In this way, when the slider 231 is in the first position and the locking device 234 is in the locked state, the first limiting plate 2324 can prevent the slider 231 from sliding away from the second limiting plate 2325, and the limiting block 2341 can prevent the slider 231 from sliding towards the second limiting plate 2325. Thus, the slider 231 can be locked in the first position.

[0121] Additionally, the locking device 234 may also include a drive assembly 2342, which is connected to the limit block 2341 and is used to drive the limit block 2341 to move along the extension direction of the mounting hole 2326.

[0122] With this configuration, simply controlling the drive assembly 2342 to retract the limit block 2341 into the mounting hole 2326 releases the locking device 234 from the slider 231, allowing the slider 231 to slide between the first and second positions. Afterward, sliding the slider 231 to the first position and controlling the drive assembly 2342 to extend the limit block 2341 out of the mounting hole 2326 re-locks the slider 231 to the first position.

[0123] For example, such as Figure 12 As shown, Figure 12 This is a structural diagram of the limiting block 2341 and the drive assembly 2342 provided in some embodiments of this application. The drive assembly 2342 includes a first motor 2342a, a winding reel 2342b, a pull rope 2342c, and a compression spring 2342d. The first motor 2342a is connected to the sliding arm 232, and the winding reel 2342b is connected to the output shaft of the first motor 2342a. One end of the pull rope 2342c is connected to the limiting block 2341, and the other end of the pull rope 2342c passes through the mounting hole 2326 (e.g., ...). Figure 8 (As shown) is connected to the reel 2342b, and the pull rope 2342c is wound around the reel 2342b. The compression spring 2342d is disposed in the mounting hole 2326 and is located on the side of the limiting block 2341 away from the cover plate 21. One end of the compression spring 2342d is connected to the slide rail 2323, and the other end is connected to the limiting block 2341.

[0124] In this configuration, controlling the first motor 2342a causes it to rotate the winding reel 2342b, winding more of the pull rope 2342c onto it. This, in turn, causes the limiting block 2341 to compress the spring 2342d, retracting the limiting block 2341 into the mounting hole 2326, thus releasing the locking device 234 from locking the slider 231. Afterward, sliding the slider 231 to the first position and stopping the first motor 2342a causes the spring 2342d to extend the limiting block 2341 out of the mounting hole 2326, locking the slider 231 to the first position.

[0125] Additionally, the drive assembly 2342 may also include a guide block 2342e, which is mounted on the first motor 2342a and located on the side of the first motor 2342a closest to the winding reel 2342b. The guide block 2342e has a guide hole through which the pull rope 2342c passes. This facilitates winding the pull rope 2342c onto the winding reel 2342b.

[0126] Understandably, the guide block 2342e can also be connected to the connecting arm 2322 by means of screw connection, bolt connection, etc., thereby improving the reliability of the installation of the first motor 2342a.

[0127] In some embodiments, such as Figure 12 As shown, the limiting block 2341 includes a blocking part 2341a and a telescopic part 2341b. The blocking part 2341a passes through the mounting hole 2326 (e.g., ...). Figure 8 (as shown) and connected to the compression spring 2342d; the telescopic part 2341b is connected to the blocking part 2341a, and the telescopic part 2341b is located on the side of the blocking part 2341a away from the compression spring 2342d.

[0128] Based on this, the two end faces of the blocking part 2341a in the first direction X are planes, and the planes are parallel to the surface of the slider 231 near the second limiting plate 2325. The surface of the telescopic part 2341b facing away from the blocking part 2341a is an arc surface, and the arc surface faces towards the cover plate 21 (e.g., Figure 2 The arc surface protrudes in the direction shown, and the two ends of the arc surface are respectively connected to the two end faces of the blocking part 2341a in the first direction X.

[0129] In the locked state, the blocking part 2341a is at least partially located on the side of the slide rail 2323 near the cover plate 21. In the unlocked state, the telescopic part 2341b is at least partially located within the mounting hole 2326.

[0130] In this way, when the slider 231 is in the first position and the locking device 234 is locked, the end face of the blocking part 2341a near the first limiting plate 2324 can fit against the surface of the slider 231 to prevent the slider 231 from sliding to the second position, thereby locking the slider 231 to the first position. When the vehicle 100 is about to collide with a pedestrian or after a collision, simply switching the locking device 234 to the unlocked state, so that the telescopic part 2341b is at least partially located within the mounting hole 2326, allows the slider 231 to press against the arc surface of the telescopic part 2341b, causing the telescopic part 2341b to retract into the mounting hole 2326, allowing the slider 231 to slide between the first and second positions. This converts the collision energy into the kinetic energy of the cover plate 21, reducing the collision injury to the pedestrian caused by the vehicle 100.

[0131] In some embodiments, see Figure 13 , Figure 13 This is a partial structural diagram of the engine hood assembly 2 provided in some embodiments of this application. The engine hood assembly 2 also includes a connector 24 and a fastener 25, in which case the slider 231 is provided with a through hole 2311 (e.g., Figure 10 (As shown).

[0132] The connector 24 is connected to the cover plate 21, the fastener 25 passes through the through hole 2311, and the fastener 25 and the connector 24 are detachably connected.

[0133] In this way, the slider 231 can be mounted onto the cover plate 21 via the fastener 25 and the connector 24, thereby achieving a detachable connection between the hinge assembly 23 and the cover plate 21. This facilitates the removal of the hinge assembly 23 from the cover plate 21 for repair or replacement.

[0134] For example, such as Figure 14 and Figure 15 As shown, Figure 14 This is a structural diagram of the connector 24 provided in some embodiments of this application. Figure 15 This is a structural diagram of the cover plate 21 and the connector 24 provided in some embodiments of this application. The connector 24 includes a fixing plate 241, a first connecting plate 242, and a second connecting plate 243. The fixing plate 241 is disposed on the lower side of the cover plate 21 and is connected to the cover plate 21. The first connecting plate 242 and the second connecting plate 243 are disposed opposite to each other, and the fixing plate 241 is connected to the first connecting plate 242 and the second connecting plate 243.

[0135] The first connecting plate 242 is provided with a first connecting hole 2421, the second connecting plate 243 is provided with a second connecting hole 2431, the slider 231 is located between the first connecting plate 242 and the second connecting plate 243, the fastener 25 is inserted into the first connecting hole 2421, the through hole 2311 and the second connecting hole 2431, and the fastener 25 is detachably connected to the connector 24.

[0136] It should be noted that the fastener 25 can be a bolt. In addition, at least one of the first connecting hole 2421 and the second connecting hole 2431 is a threaded hole, and the external thread on the bolt can be screwed into the internal thread of the threaded hole.

[0137] It is understood that the first connecting plate 242 can be set on the side of the second connecting plate 243 close to the center of the cover plate 21, or it can be set on the side of the second connecting plate 243 away from the center of the cover plate 21. The specific choice can be made according to the actual situation, and this application does not make any specific limitation.

[0138] The following describes some embodiments of this application by taking the example of the first connecting plate 242 being disposed on the side of the second connecting plate 243 near the center of the cover plate 21.

[0139] Based on this, the first connecting hole 2421 can be set as a threaded hole. In this case, the bolt can be passed through the second connecting hole 2431 and the through hole 2311 in sequence from the edge of the cover plate 21, and then connected to the threaded hole. This facilitates the removal of the bolt.

[0140] To improve the connection strength between fastener 25 and connector 24, the thickness of the first connecting plate 242 can be set to be greater than the thickness of the second connecting plate 243. This would increase the axial dimension of the first connecting hole 2421, thereby increasing the engagement length between the bolt and the threaded hole, and thus improving the connection strength between fastener 25 and connector 24.

[0141] In some embodiments, see Figure 4 The sliding member 221 is disposed between the locking member 222 and the cover plate 21, and the sliding member 221 includes a first sliding block 2211 and a second sliding block 2212.

[0142] The first sliding block 2211 is slidably connected to the locking member 222; the second sliding block 2212 is disposed between the first sliding block 2211 and the cover plate 21, and the second sliding block 2212 is slidably connected to the first sliding block 2211 and connected to the front end 211 of the cover plate 21.

[0143] In this configuration, the first sliding block 2211 can slide relative to the locking member 222 along a first direction X between a first locked position and a first unlocked position. The second sliding block 2212 can slide relative to the first sliding block 2211 along a first direction X between a second locked position and a second unlocked position, the second unlocked position being located between the second locked position and the rear end 212.

[0144] It is understandable that setting the slider 221 as the first slider 2211 and the second slider 2212 can increase the sliding distance of the cover plate 21 in the first direction X, which is beneficial to convert more collision energy into the kinetic energy of the cover plate 21, thereby reducing the collision injury of the vehicle 100 to the pedestrian.

[0145] It should be noted that there are multiple possibilities for achieving the sliding connection between the first sliding block 2211 and the second sliding block 2212, and the specific method can be selected according to the actual situation. This application does not make any specific limitation in this regard.

[0146] For example, such as Figure 6As shown, on the two surfaces of the first sliding block 2211 and the second sliding block 2212 that are close to each other, one surface is provided with a second guide rail 2213 extending along the first direction X, and the other surface is provided with a second guide groove extending along the first direction X. The second guide rail 2213 is located in the second guide groove and is used to guide the second sliding block 2212 to slide relative to the first sliding block 2211 along the first direction X.

[0147] For example, the second guide rail 2213 is disposed on the surface of the first sliding block 2211 near the second sliding block 2212, and the second guide groove is disposed on the surface of the second sliding block 2212 near the first sliding block 2211.

[0148] Additionally, the sliding member 221 may also include a fastening plate 2214, which is disposed between the second sliding block 2212 and the cover plate 21 (e.g. Figure 4 (as shown) and the second sliding block 2212 is connected to the cover plate 21 via the fastening plate 2214.

[0149] The fastening plate 2214 can be connected to the cover plate 21 by means of bolts, screws, etc. The specific method can be selected according to the actual situation, and this application does not make specific limitations in this regard.

[0150] In some embodiments, see Figure 16 , Figure 16 This is a structural diagram of a locking assembly 22 provided in some embodiments of this application. The locking assembly 22 also includes a locking device 223, which has an active state and a locked state.

[0151] It should be noted that, in the active state, the first sliding block 2211 can slide relative to the locking member 222, and the second sliding block 2212 can slide relative to the first sliding block 2211. In the locked state, the locking device 223 can lock the first sliding block 2211 to the first locking position and lock the second sliding block 2212 to the second locking position.

[0152] In this way, under normal conditions, switching the locking device 223 to the locked state locks the first sliding block 2211 to the first locked position and the second sliding block 2212 to the second locked position, thus locking the sliding member 221 to the first locked position. This prevents the sliding member 221 from sliding relative to the locking member 222, thereby preventing the cover plate 21 from sliding relative to the vehicle body 1 in the first direction X. At this time, both the latch assembly 22 and the hinge assembly 23 can prevent the cover plate 21 from sliding relative to the vehicle body 1 in the first direction X, thereby improving the stability of the cover plate 21's rotation during the opening and closing of the engine compartment. In addition, when the vehicle 100 is about to collide with a pedestrian or after a collision has occurred, switching the locking device 223 to the active state and the locking device 234 to the unlocked state allows the cover plate 21 to slide relative to the vehicle body 1, converting the collision energy into the kinetic energy of the cover plate 21, thereby reducing the collision injury to the pedestrian caused by the vehicle 100.

[0153] In some embodiments, such as Figure 16 As shown, the locking device 223 is disposed on the sliding member 221 away from the cover plate 21 (e.g. Figure 2 (as shown) one side of the rear end 212.

[0154] Based on this, see Figure 17 , Figure 17 This is a structural diagram of a locking device 223 provided in some embodiments of this application. The locking device 223 includes a second motor 2231 and a locking plate 2232. The second motor 2231 is connected to the locking member 222, and the locking plate 2232 is connected to the output shaft of the second motor 2231, and the second motor 2231 can drive the locking plate 2232 to rotate. For example, the end of the output shaft of the second motor 2231 is connected to the rotation center of the locking plate 2232.

[0155] Among them, see Figure 18 , Figure 18 This is a structural diagram of a locking device 223 provided in some embodiments of this application. The locking piece 2232 has a plurality of limiting teeth 2232a, which are located on the periphery of the locking piece 2232 and are spaced apart along the circumference of the locking piece 2232.

[0156] In addition, such as Figure 6 As shown, the slider 221 also includes a first limiting post 2215 and a second limiting post 2216. The first limiting post 2215 is connected to the first sliding block 2211, and the second limiting post 2216 is connected to the second sliding block 2212.

[0157] The first limiting post 2215 is located on the side of the first sliding block 2211 away from the rear end 212, and the second limiting post 2216 is located on the side of the second sliding block 2212 away from the rear end 212.

[0158] Based on this, see Figure 19 , Figure 19 Partial structural diagram of the first limiting post 2215 and the second limiting post 2216 provided for some embodiments of this application. The first limiting post 2215 is located away from the first sliding block 2211 (e.g., Figure 6 One end of the sliding block 2212 (as shown) is provided with a first limiting groove 2215a, and the second limiting post 2216 is away from the second sliding block 2212 (as shown). Figure 6 One end of the (shown) is provided with a second limiting groove 2216a.

[0159] It should be noted that when the first sliding block 2211 is in the first locked position and the second sliding block 2212 is in the second locked position, the second motor 2231 can drive the locking piece 2232 to rotate, causing at least some of the limiting teeth 2232a to move into or out of the first limiting groove 2215a and the second limiting groove 2216a. When the locking device 223 is in the active state, multiple limiting teeth 2232a are located outside the first limiting groove 2215a and the second limiting groove 2216a. When the locking device 223 is in the locked state, at least one limiting tooth 2232a is located within the first limiting groove 2215a and at least one limiting tooth 2232a is located within the second limiting groove 2216a.

[0160] With this configuration, when the first sliding block 2211 is in the first locked position and the second sliding block 2212 is in the second locked position, the second motor 2231 is controlled to operate, driving the locking piece 2232 to rotate. This causes at least one limiting tooth 2232a to rotate into the first limiting groove 2215a and at least one limiting tooth 2232a to rotate into the second limiting groove 2216a. The limiting tooth 2232a located in the first limiting groove 2215a can interfere with the first limiting post 2215 to lock the first sliding block 2211 to the first locked position; the limiting tooth 2232a located in the second limiting groove 2216a can interfere with the second limiting post 2216 to lock the second sliding block 2212 to the second locked position. In this way, the sliding member 221 can be locked to the first locked position. Based on this, the second motor 2231 is controlled to run, thereby driving the locking piece 2232 to rotate, so that the limiting teeth 2232a rotate to the outside of the first limiting groove 2215a and the second limiting groove 2216a, thereby releasing the lock on the sliding member 221, allowing the sliding member 221 to slide relative to the locking member 222 along the first direction X.

[0161] In addition, such as Figure 16 As shown, the locking assembly 22 may also include a baffle 224, which is connected to the locking member 222 and is located between the locking piece 2232 and the sliding member 221.

[0162] Based on this, the baffle 224 is provided with a first clearance hole and a second clearance hole. When the first sliding block 2211 is in the first locked position and the second sliding block 2212 is in the second locked position, the baffle 224 contacts the first sliding block 2211 and the second sliding block 2212, and the first limiting post 2215 passes through the first clearance hole and the second limiting post 2216 passes through the second clearance hole.

[0163] In this way, when the first sliding block 2211 slides to the first locked position, the baffle 224 can prevent the first sliding block 2211 from continuing to slide away from the first unlocked position and prevent the second sliding block 2212 from continuing to slide away from the second unlocked position, so that the first sliding block 2211 stays in the first locked position and the second sliding block 2212 stays in the second locked position. This facilitates the movement of the limiting teeth 2232a of the locking piece 2232 into or out of the first limiting groove 2215a and the second limiting groove 2216a.

[0164] In some embodiments, see Figure 5 The locking assembly 22 also includes a first elastic return member 225. One end of the first elastic return member 225 is connected to the locking member 222, and the other end is connected to the first sliding block 2211 (e.g., Figure 6 (As shown) connection.

[0165] The first elastic restoring member 225 can provide an elastic force to the first sliding block 2211 pointing towards the first locking position when the first sliding block 2211 deviates from the first locking position.

[0166] For example, the first elastic restoring member 225 includes a connecting rod, a sleeve, and a tension spring. One end of the connecting rod is connected to the locking member 222, and the other end passes through the sleeve and is slidably connected to it. The end of the sleeve away from the connecting rod is connected to the first slider 231. The tension spring is disposed within the sleeve, and its two ends are connected to the connecting rod and the sleeve, respectively.

[0167] Understandably, the first elastic recovery member 225 can provide cushioning as the cover plate 21 slides toward the second position, thereby reducing the impact of the cover plate 21 on the hinge assembly 23 and thus reducing the risk of damage to the hinge assembly 23.

[0168] In addition, the locking assembly 22 may also include a second elastic recovery member 226, one end of which is connected to the first sliding block 2211 and the other end of which is connected to the second sliding block 2212.

[0169] The second elastic recovery member 226 is used to provide an elastic force to the second sliding block 2212 pointing towards the second locking position when the second sliding block 2212 deviates from the second locking position.

[0170] Understandably, the second elastic recovery member 226 can also provide cushioning as the cover plate 21 slides toward the second position, thereby reducing the impact of the cover plate 21 on the hinge assembly 23 and thus reducing the risk of damage to the hinge assembly 23.

[0171] It should be noted that the second elastic recovery member 226 can be configured with reference to the structure of the first elastic recovery member 225, which will not be described in detail here. For example, the second elastic recovery member 226 and the first elastic recovery member 225 are the same components.

[0172] In addition, the number of the first elastic recovery member 225 and the second elastic recovery member 226 in the locking assembly 22 can be one or more, and the specific selection can be made according to the actual situation. This application does not make a specific limitation on this.

[0173] In some embodiments, the vehicle 100 includes a collision detection device and a controller, the controller being electrically connected to the collision detection device, the locking device 223 and the locking device 234.

[0174] For example, the controller can detect whether the vehicle 100 has collided with a pedestrian through a collision detection device, and when the vehicle 100 collides with the pedestrian, it controls the locking device 223 to switch to the active state and controls the locking device 234 to switch to the unlocked state. The collision detection device can be a pressure sensor.

[0175] In other embodiments, the controller can detect the probability that the vehicle 100 will collide with a pedestrian through the collision detection device, and when the probability is greater than a preset value, control the locking device 223 to switch to the active state and control the locking device 234 to switch to the unlocked state.

[0176] In this way, after the vehicle 100 collides with the pedestrian, the cover plate 21 can slide relative to the vehicle body 1 along the first direction X to convert the collision energy into the kinetic energy of the cover plate 21, thereby reducing the collision injury of the vehicle 100 to the pedestrian.

[0177] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An engine hood assembly, characterized in that, include: The cover plate (21) has a front end (211) and a rear end (212) arranged along a first direction X; A locking assembly (22), the locking assembly (22) comprising: A slider (221) is connected to the front end (211); A locking member (222) is slidably connected to the sliding member (221); the sliding member (221) can slide relative to the locking member (222) along the first direction X between a first locked position and a first unlocked position, the first unlocked position being located between the first locked position and the rear end (212); A hinge assembly (23), the hinge assembly (23) comprising: The slider (231) is connected to the rear end (212); A sliding arm (232) is slidably connected to the slider (231); the slider (231) can slide relative to the sliding arm (232) along the first direction X between a first position and a second position, the first position being located between the second position and the front end (211); A fixed arm (233) is rotatably connected to the sliding arm (232); the rotation axis L1 of the sliding arm (232) is perpendicular to the first direction X and the thickness direction of the cover plate (21); The locking device (234) has an unlocked state and a locked state; in the unlocked state, the slider (231) can slide relative to the sliding arm (232); in the locked state, the locking member (222) can lock the slider (231) to the first position.

2. The engine hood assembly according to claim 1, characterized in that, The engine hood assembly (2) includes a plurality of the hinge assemblies (23), and the plurality of hinge assemblies (23) are spaced apart along the second direction Y; Wherein, the second direction Y is parallel to the rotation axis L1 of the sliding arm (232), and the rotation axes L1 of the multiple sliding arms (232) of the multiple hinge assemblies (23) are collinear.

3. The engine hood assembly according to claim 1, characterized in that, The hinge assembly (23) includes a plurality of sliders (231), and the plurality of sliders (231) are spaced apart along the first direction X.

4. The engine hood assembly according to any one of claims 1-3, characterized in that, The sliding arm (232) has a groove (2321) on each side in the second direction Y, and the groove (2321) extends along the first direction X; wherein the second direction Y is parallel to the rotation axis L1 of the sliding arm (232); The hinge assembly (23) also includes: Multiple rollers (235) are provided, and at least one roller (235) is provided in each groove (2321), and the roller (235) is rotatably connected to the slider (231); wherein, the rotation axis L2 of the roller (235) is parallel to the second direction Y, and the two ends of the roller (235) in the thickness direction of the cover plate (21) are in contact with the inner wall of the groove (2321).

5. The engine hood assembly according to claim 4, characterized in that, The sliding arm (232) includes: The connecting arm (2322) is rotatably connected to the fixed arm (233); A slide rail (2323) is connected to the connecting arm (2322); a slide groove (2321) is disposed on the slide rail (2323), and the slide groove (2321) passes through the slide rail (2323) along the first direction X; A first limiting plate (2324) is disposed on the side of the slide rail (2323) near the front end (211), and one end of the slide groove (2321) is located on the first limiting plate (2324); The second limiting plate (2325) is disposed on the side of the slide rail (2323) away from the front end (211), and the other end of the slide groove (2321) is located on the second limiting plate (2325); At least one of the first limiting plate (2324) and the second limiting plate (2325) is detachably connected to the slide rail (2323).

6. The engine hood assembly according to claim 5, characterized in that, The slide rail (2323) is provided with mounting holes (2326), and the locking device (234) includes: A limiting block (2341) is inserted into the mounting hole (2326) and slidably connected to the slide rail (2323); the limiting block (2341) can move relative to the slide rail (2323) along the extending direction of the mounting hole (2326), so that the limiting block (2341) retracts or extends out of the mounting hole (2326); A drive assembly (2342) is connected to the limiting block (2341) and is used to drive the limiting block (2341) to move along the extension direction of the mounting hole (2326); When the slider (231) is in the first position and the locking device (234) is in the locked state, at least one slider (231) is in contact with the surface of the first limiting plate (2324) near the second limiting plate (2325), and at least one slider (231) is in contact with the surface of the limiting block (2341) near the first limiting plate (2324).

7. The engine hood assembly according to claim 6, characterized in that, The driving component (2342) includes: A first motor (2342a) is connected to the sliding arm (232); The reel (2342b) is connected to the output shaft of the first motor (2342a); A pull rope (2342c) is connected at one end to the limiting block (2341) and at the other end through the mounting hole (2326) to the winding reel (2342b); the pull rope (2342c) is wound around the winding reel (2342b); A compression spring (2342d) is disposed in the mounting hole (2326) and located on the side of the limiting block (2341) away from the cover plate (21); one end of the compression spring (2342d) is connected to the slide rail (2323) and the other end is connected to the limiting block (2341).

8. The engine hood assembly according to claim 7, characterized in that, The limiting block (2341) includes: The blocking part (2341a) is inserted into the mounting hole (2326) and connected to the compression spring (2342d); the two end faces of the blocking part (2341a) in the first direction X are planes, and the planes are parallel to the surface of the slider (231) near the second limiting plate (2325); The telescopic part (2341b) is connected to the blocking part (2341a) and is located on the side of the blocking part (2341a) away from the compression spring (2342d); the surface of the telescopic part (2341b) away from the blocking part (2341a) is an arc surface, the arc surface protrudes in the direction close to the cover plate (21), and the two ends of the arc surface are respectively connected to the two end faces of the blocking part (2341a) in the first direction X; In the locked state, the blocking part (2341a) is at least partially located on the side of the slide rail (2323) near the cover plate (21); in the unlocked state, the telescopic part (2341b) is at least partially located inside the mounting hole (2326).

9. The engine hood assembly according to claim 1, characterized in that, The slider (231) is provided with a through hole (2311); the engine hood assembly (2) also includes: Connector (24), the connector (24) comprising: A fixing plate (241) is connected to the cover plate (21) and is located on the lower side of the cover plate (21); A first connecting plate (242) is connected to the fixing plate (241), and a first connecting hole (2421) is provided on the first connecting plate (242); The second connecting plate (243) is connected to the fixed plate (241), and the second connecting plate (243) is provided with a second connecting hole (2431); the second connecting plate (243) is arranged opposite to the first connecting plate (242), and the slider (231) is located between the first connecting plate (242) and the second connecting plate (243); Fastener (25) is inserted into the first connecting hole (2421), the through hole (2311) and the second connecting hole (2431), and is detachably connected to the connector (24).

10. The engine hood assembly according to claim 1, characterized in that, The sliding member (221) is disposed between the locking member (222) and the cover plate (21); the sliding member (221) includes: The first sliding block (2211) is slidably connected to the locking member (222) and can slide relative to the locking member (222) along the first direction X between the first locked position and the first unlocked position; The second sliding block (2212) is disposed between the first sliding block (2211) and the cover plate (21) and is connected to the front end (211); the second sliding block (2212) is slidably connected to the first sliding block (2211) and can slide relative to the first sliding block (2211) along the first direction X between a second locking position and a second unlocking position, the second unlocking position being located between the second locking position and the rear end (212).

11. The engine hood assembly according to claim 10, characterized in that, The locking assembly (22) also includes: The locking device (223) has an active state and a locked state; in the active state, the first sliding block (2211) can slide relative to the locking member (222), and the second sliding block (2212) can slide relative to the first sliding block (2211); in the locked state, the locking device (223) can lock the first sliding block (2211) to the first locked position and lock the second sliding block (2212) to the second locked position.

12. The engine hood assembly according to claim 11, characterized in that, The locking device (223) is disposed on the side of the slider (221) opposite to the rear end (212); The locking device (223) includes: The second motor (2231) is connected to the locking member (222); A locking plate (2232) is connected to the output shaft of the second motor (2231); the locking plate (2232) has a plurality of limiting teeth (2232a), the plurality of limiting teeth (2232a) are located on the periphery of the locking plate (2232), and the plurality of limiting teeth (2232a) are spaced apart along the circumference of the locking plate (2232); The slider (221) further includes: The first limiting post (2215) is connected to the first sliding block (2211) and is located on the side of the first sliding block (2211) away from the rear end (212); the first limiting post (2215) is provided with a first limiting groove (2215a) at the end away from the first sliding block (2211); The second limiting post (2216) is connected to the second sliding block (2212) and is located on the side of the second sliding block (2212) away from the rear end (212); the end of the second limiting post (2216) away from the second sliding block (2212) is provided with a second limiting groove (2216a); When the first sliding block (2211) is in the first locked position and the second sliding block (2212) is in the second locked position, the second motor (2231) can drive the locking piece (2232) to rotate, so that at least a portion of the limiting teeth (2232a) move into or out of the first limiting groove (2215a) and the second limiting groove (2216a); wherein, in the active state, the plurality of limiting teeth (2232a) are located outside the first limiting groove (2215a) and the second limiting groove (2216a); in the locked state, at least one of the limiting teeth (2232a) is located in the first limiting groove (2215a) and at least one of the limiting teeth (2232a) is located in the second limiting groove (2216a).

13. The engine hood assembly according to claim 12, characterized in that, The locking assembly (22) also includes: A baffle (224) is connected to the locking member (222) and is located between the locking piece (2232) and the sliding member (221); the baffle (224) is provided with a first clearance hole and a second clearance hole; When the first sliding block (2211) is in the first locked position and the second sliding block (2212) is in the second locked position, the baffle (224) contacts the first sliding block (2211) and the second sliding block (2212), and the first limiting post (2215) passes through the first clearance hole and the second limiting post (2216) passes through the second clearance hole.

14. The engine hood assembly according to any one of claims 10-13, characterized in that, The locking assembly (22) also includes: A first elastic restoring member (225) is connected at one end to the locking member (222) and at the other end to the first sliding block (2211); the first elastic restoring member (225) is used to provide an elastic force to the first sliding block (2211) pointing towards the first locking position when the first sliding block (2211) deviates from the first locking position; and / or, The second elastic restoring member (226) is connected at one end to the first sliding block (2211) and at the other end to the second sliding block (2212); the second elastic restoring member (226) is used to provide the second sliding block (2212) with an elastic force pointing towards the second locking position when the second sliding block (2212) deviates from the second locking position.

15. A vehicle, characterized in that, include: Body (1), wherein the body (1) is provided with an engine compartment having an opening; An engine hood assembly (2) is connected to the vehicle body (1) and covers the opening; The engine hood assembly (2) is the engine hood assembly according to any one of claims 1-14.

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