Detachable connecting frame, vehicle front structure and vehicle

Abstract

The invention provides a detachable connecting frame, a vehicle front part structure and a vehicle. The detachable connecting frame comprises a main body and a rear extending part, the main body is used for being fixedly connected with an anti-collision beam, and the rear extending part is formed by extending backwards from the main body and is used for being detachably fixed together with a front end module; a detachable connecting hole is formed in the rear extending part in the vertical direction in a penetrating mode. The detachable connecting hole comprises a matching area and a collecting channel which are sequentially arranged from front to back. A fixing piece for connecting the detachable connecting frame with the front-end module penetrates through the matching area; the collecting channel is communicated with the matching area, and the collecting channel is firstly narrowed and then expanded relative to the matching area; the constriction channel breaks the rear edge outline of the rear extending part, and a rear opening structure allowing the fixing piece to be disengaged along the external force is formed on the rear extending part. When a vehicle applying the detachable connecting frame is collided, excessive damage to pedestrians or other vehicles cannot be caused, and the vehicle can meet the evaluation standard related to the collision.

Description

Technical Field

[0001] The invention relates to a detachable connecting frame, a vehicle front structure and a vehicle. Background Art

[0002] Vehicle evaluation standards, such as C-NCAP2021, have important evaluation criteria including barrier intrusion height, barrier intrusion depth and some items related to pedestrian protection; the current trend is that if a vehicle wants to avoid being penalized too many points in such evaluation standards, the front structure of the vehicle cannot be too rigid.

[0003] In the related technology, the front of the vehicle needs to be arranged with headlights and a front-end module for providing installation points for multiple front parts (such as headlights, front bumpers, hood locks, etc.). In order to provide reliable installation points for multiple front parts and form a reliable connection relationship with multiple front parts, the front-end module itself needs to meet certain rigidity and weight requirements; at the same time, for models that will be designed with integrated ring headlights (or through-type headlights) on the front of the vehicle, the integrated ring headlights need to be fixed on the front-end module. The integrated ring headlights have the characteristics of high rigidity, heavy weight, and are designed to surround the front of the vehicle, and need to occupy a large space.

[0004] In summary, for vehicles with integrated ring-shaped headlights, the front structure is typically characterized by high rigidity, strength, and resistance to deformation, meaning it is relatively "rigid." At the same time, due to the space occupied by the integrated ring-shaped headlights, the front crumple zone of such vehicles is often limited, characterized by being narrow, small, and short. Understandably, these characteristics can easily lead to penalty points being awarded in the relevant vehicle evaluation standards. Summary of the Invention

[0005] The purpose of the present invention is to provide a detachable connecting frame, a vehicle front structure, and a vehicle.

[0006] The detachable connecting frame provided by the present invention includes a main body and a rear extension; the main body is used to be fixedly connected to the anti-collision beam, and the rear extension is formed by extending rearward from the main body and is used to be detachably fixed to the front-end module;

[0007] On the rear extension part, a detachable connecting hole is provided along the up and down directions; the detachable connecting hole includes a matching area and a convergence channel arranged in sequence from front to back; the matching area is for the fixing part used to connect the detachable connecting frame to the front-end module to pass through; the convergence channel is connected to the matching area, and the convergence channel first narrows and then expands relative to the matching area; the convergence channel interrupts the rear edge contour of the rear extension part, and forms a rear opening structure on the rear extension part for the fixing part to be able to detach due to external force.

[0008] Optionally, the convergence channel includes a fixed width section and an expansion section arranged in sequence from front to back, the front end of the fixed width section is connected to the fitting area to form an area passing through the rear extension part, and the rear end of the fixed width section is connected to the expansion section to form an area passing through the rear extension part; the fixed width section makes a part of the convergence channel have a constant width, and the expansion section makes the width of a part of the convergence channel gradually increase from front to back.

[0009] Optionally, the fixed width section is a channel extending straight from front to back, and the expansion section is trumpet-shaped.

[0010] Optionally, a convex bulge is provided on the rear extension portion, and the convex bulge is formed by protruding from bottom to top on the rear extension portion, and the detachable connection hole is provided on the convex bulge.

[0011] The present invention also provides a vehicle front structure, comprising the detachable connecting frame as described in any one of the above items, and further comprising a front end module and an anti-collision beam.

[0012] Optionally, a first hole is provided on the main body, and three first holes penetrate the main body in the front-to-back direction, and the center lines of the three first holes can form a triangular structure; the first hole is for the insertion of a fixing part used to fix the main body to the anti-collision beam.

[0013] Optionally, a fixing member is further included; the edges of the main body and the rear extension have a structure without a forward flange; the rear extension is connected to the front module and is in contact with the lower surface of the front module; the main body is fixedly connected to the front surface of the anti-collision beam, and a portion of it is in contact with the front surface of the anti-collision beam;

[0014] A fixing part penetrates the rear extension and the front-end module from bottom to top, so that the detachable connecting frame and the lower part of the front-end module are detachably fixed together; the connection relationship between the fixing part and the front-end module is configured so that the fixing part can move backward relative to the detachable connecting frame under the action of an external force, and drive the lower part of the front-end module to change its shape.

[0015] Optionally, it also includes a connecting member and a vehicle longitudinal beam arranged in a one-to-one correspondence; the front end of the connecting member is fixedly connected to the upper part of the front-end module, and the rear end is fixedly connected to the vehicle longitudinal beam; the fixed connection relationship between the front end of the connecting member and the upper part of the front-end module is configured to apply a reaction force to the lower part of the front-end module when the lower part of the front-end module changes its own shape.

[0016] Optionally, it further comprises a left lamp body and a right lamp body, wherein the left lamp body and the right lamp body are respectively fixedly connected to the front-end module, and the left lamp body and the right lamp body are spaced apart from each other;

[0017] The detachable connecting frames are fixed on the left and right ends of the anti-collision beam respectively, and the middle part of the anti-collision beam is configured as a prohibited area for detachable connecting frames; at least a part of the prohibited area for detachable connecting frames is aligned with the space between the left lamp body and the right lamp body, so that the middle part of the front of the vehicle is weaker than the left and right parts of the front of the vehicle.

[0018] The present invention also provides a vehicle, comprising the vehicle front structure as described in any one of the above items.

[0019] In summary, the present invention provides a detachable connecting frame that is fixed to the anti-collision beam and can be detached from the front-end module under the action of an external force. This ensures that the front structure of a vehicle using the detachable connecting frame will not be too rigid, and the vehicle will not cause excessive damage to pedestrians or other vehicles during a collision with them. At the same time, the above-mentioned arrangement can also ensure that the vehicle meets the evaluation standards related to the collision.

[0020] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 1 is an exploded view of the front structure of the vehicle in an embodiment of the present invention.

[0022] Figure 2 Schematic diagram of the front structure of a vehicle in an embodiment of the present invention.

[0023] Figure 3 Schematic diagram of a detachable connecting frame in an embodiment of the present invention.

[0024] Figure 4 Schematic diagram of the partial structure of the detachable connecting frame in an embodiment of the present invention.

[0025] Figure 5 Schematic diagram of a detachable hole in an embodiment of the present invention.

[0026] Figure 6 The figure is a schematic diagram showing the connection position of the front-end module to the detachable connecting frame in an embodiment of the present invention.

[0027] Figure 7 Schematic diagram of the fixing member and the detachable connecting frame after being matched in an embodiment of the present invention.

[0028] Figure 8 Schematic diagram of the front-end module in an embodiment of the present invention Figure 1 .

[0029] Figure 9Schematic diagram of the front-end module in an embodiment of the present invention Figure 2 .

[0030] Figure 10 This is a simplified schematic diagram of the left lamp body and the right lamp body being spaced apart in an embodiment of the present invention.

[0031] Figure 11 Schematic diagram of the partitioning of the space between the left and right lamp bodies and the prohibited area for detachable couplings in an embodiment of the present invention (the viewing angle of the schematic diagram is approximately from top to bottom).

[0032] Description of Reference Numerals

[0033] A, B, C, D, E, F, G, H - mounting points

[0034] 1-front-end module, 11-third hole, 12-fourth hole, 2-anti-collision beam, 3-detachable connecting frame, 31-main body, 311-first hole, 312-second hole, 32-rear extension, 321-detachable connecting hole, 3211-matching area, 3212-converging channel, 3213-fixed width section, 3214-expansion section, 322-convex bulge, 4-fixing part, 5-left lamp body, 6-right lamp body, 7-connecting part, 8-vehicle longitudinal beam. DETAILED DESCRIPTION

[0035] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0036] The terms "first", "second" and the like in the description and claims of the present invention are used to distinguish similar objects and are not necessarily used to describe a particular sequence or order.

[0037] In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, removable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. In some cases, when referring to something being fixedly connected to something else, the specific connection method may also include an integral connection. Those skilled in the art will understand the specific meanings of these terms based on the specific circumstances.

[0038] The terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside" and the like in the present invention indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the products of the invention are usually placed when in use. They are only for the convenience and simplification of description, and do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0039] The terms "comprises," "comprising," or any other variations thereof herein are intended to cover a non-exclusive inclusion, ie, including elements other than the listed elements and other elements not expressly listed.

[0040] In the description of this specification, the reference terms "one embodiment", "some embodiments", "exemplarily", "specific example", "optionally", "further", "more detailed description", "preferably", "also provided with", "also including" or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0041] It should be noted that in the description of this application, the orientation or position relationship indicated by the term "end" etc. is based on the orientation or position relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0042] like Figure 1 and Figure 2 As shown, this embodiment provides a vehicle, the front of which is provided with a front end module 1, an anti-collision beam 2 located at the lower side of the front end module 1, and an integrated annular headlight (not shown) mounted on the front end module 1. What is particularly special about this embodiment is that Figure 2 and Figure 3 As shown, the front of the vehicle is also provided with a detachable connecting frame 3, which includes a main body 31 and a rear extension 32, wherein the main body 31 is used to be fixedly connected to the anti-collision beam 2, and the rear extension 32 is formed by extending rearward from the upper edge of the main body 31 and is used to be detachably fixed to the front-end module 1.

[0043] Please continue reading Figure 3 and Figure 4 , on the rear extension portion 32, a detachable connecting hole 321 is provided along the up and down directions; the detachable connecting hole 321 includes a matching area 3211 and a convergence channel 3212 arranged in sequence from front to back, wherein the matching area 3211 is used to penetrate a fixing part 4 such as a bolt, and the fixing part 4 is used not only to penetrate the matching area 3211 but also to penetrate the front-end module 1, so that the detachable connecting frame 3 is connected to the front-end module 1; in addition, the convergence channel 3212 is connected to the matching area 3211, and in the left and right directions, the convergence channel 3212 has a posture of first narrowing and then expanding relative to the matching area 3211, the convergence channel 3212 interrupts the rear edge contour of the rear extension portion 32, and forms a rear opening structure on the detachable connecting frame 3 for the fixing part 4 to be detached by external force.

[0044] Based on the above design, it can be seen that when the vehicle is hit and the anti-collision beam 2 and / or the detachable connecting frame 3 and / or the front-end module 1 are subjected to a certain degree of external force, the external force will cause the fixing member 4 to detach backward through the rear opening structure formed by the detachable connecting hole 321, leaving the detachable connecting frame 3, and cause the part of the front-end module 1 connected to the fixing member 4 to deform and / or collapse due to the external force and the fixing member 4, thereby absorbing and distributing the external force to a certain extent. In addition, it can be understood that during the movement of the fixing member 4 itself and the process of pushing the part of the front-end module 1 backward, the relative movement between the fixing member 4 and the detachable connecting hole 321 can also absorb and buffer the external force to a certain extent.

[0045] In this way, those skilled in the art only need to design the detachable connecting frame 3 itself and its connection relationship with the surrounding components according to actual needs, and can set the degree of external force that can cause the fixing part 4 to detach from the detachable connecting frame 3, thereby ensuring that the front structure of the vehicle is not too rigid under the premise that the front crumple space of the vehicle is limited, so that the vehicle will not cause excessive damage to pedestrians or other vehicles during the collision with them; at the same time, the above-mentioned settings can also ensure that the vehicle meets the evaluation standards related to the collision (such as barrier intrusion height, barrier intrusion depth and some items related to pedestrian protection).

[0046] Furthermore, since the convergence channel 3212 is narrowed first relative to the matching area 3211, it is easy to know that before the detachable connecting frame 3 is detached from the front-end module 1, this design can ensure that the detachable connecting frame 3 and the fixing member 4 form a snap-fit ​​relationship in the front-to-back direction; it can be understood that this snap-fit ​​relationship can ensure the stability of the connection between the detachable connecting frame 3 and the front-end module 1, ensure that the fixing member 4 will not loosen during the long-term use of the vehicle, and thereby ensure the reliability of the front structure of the vehicle.

[0047] Furthermore, when the vehicle is impacted, since the convergence channel 3212 narrows relative to the mating area 3211, it is readily apparent that the fixing member 4 connected to the front-end module 1 must first overcome this snap-fit ​​relationship to enter the convergence channel 3212, and then overcome the interference fit between the convergence channel 3212 and itself to move backward until it leaves the area where the convergence channel 3212 narrows relative to the mating area 3211. It is understood that this design is equivalent to absorbing the external force exerted by the vehicle impact twice, through the mating area 3211 and the area where the convergence channel 3212 narrows relative to the mating area 3211, before the fixing member 4 detaches from the detachable connecting bracket 3. This undoubtedly facilitates the dissipation and absorption of this external force by the vehicle's front structure.

[0048] Furthermore, although the present embodiment is designed to enhance the consumption of external forces and the converging channel 3212 is narrowed relative to the matching area 3211, in order to ensure that this narrowing design does not lead to the inability of the fixing part 4 to be smoothly detached, the present embodiment further makes the converging channel 3212 first narrow and then expand relative to the matching area 3211, so as to ensure that while the fixing part 4 moves in the converging channel 3212 and consumes the aforementioned external forces, the further away the fixing part 4 is from the matching area 3211, the easier it is to detach from the detachable connecting hole 321. In short, the design of the converging channel 3212 first narrowing and then expanding relative to the matching area 3211 is a solution that tries to achieve both "ensuring the reliability of the front structure of the vehicle", "facilitating the consumption and absorption of external forces by the front structure of the vehicle", and "ensuring that the narrowing design does not lead to the inability of the fixing part 4 to be smoothly detached".

[0049] For the above vehicle, the following is a more detailed example setup:

[0050] like Figure 2 and Figure 3 As shown, this embodiment is provided with a detachable connecting frame 3 at both the left and right front portions of the vehicle. The detachable connecting frame 3 is L-shaped overall, with its main body 31 and rear extension 32 both being relatively flat plates. The edges of the main body 31 and rear extension 32 are not provided with any forward flanged structures for structural reinforcement. The rear extension 32 is in contact with the lower surface of the front-end module 1, and the fixing member 4 penetrates the lower surface of the rear extension 32 and the front-end module 1, thereby detachably fixing the two together. A portion of the main body 31 is in contact with the front surface of the anti-collision beam 2 and is fixedly connected to the front surface of the anti-collision beam 2. A portion of the main body 31 is located outside the anti-collision beam 2 and the front-end module 1, and is located between the anti-collision beam 2 and the front-end module 1.

[0051] It can be understood that the rear extension 32 is in contact with and detachably fixed to the lower surface of the front-end module 1, and the design of the main body 31 being fixedly connected to the anti-collision beam 2 enables the detachable connecting frame 3 to apply a supporting force to the front-end module 1 before it is detached from the front-end module 1, thereby ensuring the reliability of the front-end module 1 in the front structure of the vehicle.

[0052] Furthermore, since the main body 31 is attached to and fixedly connected to the front surface of the anti-collision beam 2, the entire detachable connecting frame 3 is located in the front structure of the vehicle in the form of an L-shaped body with its opening facing backward, and the edges of the main body 31 and the rear extension 32 are not provided with any forward flange structure for strengthening the structure. Therefore, the detachable connecting frame 3 does not belong to a structure that may cause damage to other vehicles or pedestrians during a collision between the vehicle and pedestrians or other vehicles.

[0053] More specifically, if the rear extension 32 is formed by extending forward from the upper edge of the main body 31, and / or the edge of the main body 31 is also provided with a structure such as a flange protruding forward, and / or the detachable connecting frame 3 is a traditional stable structure (such as a bipod, tripod or quadripod type structure) supported between the front module 1 and the anti-collision beam 2; then in addition to such a setting increasing the rigidity and strength of the front structure of the vehicle, during the collision between the vehicle and pedestrians or other vehicles, as the front structure of the vehicle deforms and / or collapses, the forward extension or very stable structure of the detachable connecting frame 3 may also deepen the damage to pedestrians or increase the depth of the vehicle's intrusion into other vehicles.

[0054] Please continue reading Figure 3 and Figure 4 Three first holes 311 are also provided on the main body 31, which pass through it in the front-to-back direction. The first holes 311 are used for inserting fixing parts such as bolts. On the main body 31, the center lines of the three first holes 311 form a triangular structure, ensuring that after the fixing parts corresponding to the three first holes 311 penetrate the main body 31 and then penetrate the anti-collision beam 2, a stable fixed connection relationship is formed between the main body 31 and the anti-collision beam 2.

[0055] For example, in order to ensure the connection strength between the fixing member 4 and the detachable connecting frame 3, a convex bulge 322 is provided on the rear extension portion 32. The convex bulge 322 is formed on the rear extension portion 32 from bottom to top, and the aforementioned detachable connecting hole 321 is provided on the convex bulge 322.

[0056] Please continue to see 4 and Figure 5 In order to realize the design that the aforementioned convergence channel 3212 first narrows and then expands relative to the matching area 3211, the convergence channel 3212 exemplarily includes a fixed width section 3213 and an expansion section 3214 arranged in sequence from front to back, wherein the front end of the fixed width section 3213 is connected with the matching area 3211 to form a region that passes through the rear extension portion 32, and the rear end of the fixed width section 3213 is connected with the expansion section 3214 to form a region that passes through the rear extension portion 32; the existence of the fixed width section 3213 makes a part of the convergence channel 3212 have a constant width; the existence of the expansion section 3214 makes the width d of a part of the convergence channel 3212 gradually increase from front to back.

[0057] For example, the fixed width section 3213 is a straight channel extending from front to back, and the expansion section 3214 is in the shape of a bell mouth. For example, the fixing member 4 that penetrates the rear extension 32 is a bolt that penetrates the matching area 3211 from bottom to top. Correspondingly, Figure 6 and Figure 7 As shown, the mating area 3211 is exemplarily an arc-shaped through hole, and the front-end module 1 is provided with a second hole 312 passing through it, and a nut (not shown) for mating with the fixing part 4 is welded in the second hole 312; after the fixing part 4 and the mating area 3211 are assembled, part of the rod of the fixing part 4 extends to the upper side of the detachable hole 321, so that this part of the fixing part 4 is mated with the nut, thereby completing the connection between the front-end module 1 and the fixing part 4.

[0058] Please continue reading Figure 8 and Figure 9 As mentioned above, this embodiment has a detachable connecting frame 3 at the left and right ends of the anti-collision beam 2; in addition, the middle part of the anti-collision beam 2 of this embodiment is also configured as a no-detachable connecting frame area. This is set up to ensure that when the vehicle is hit by the left or right side ( Figure 9 (The arrows ① and ② indicate the right-side impact force and the left-side impact force respectively). Since the middle part of the vehicle is not provided with a detachable connecting frame 3 connected to both the anti-collision beam 2 and the front-end module 1, the left front and right front parts of the vehicle can deform and / or collapse relatively independently in the impact scenario.

[0059] Furthermore, in a possible collision scenario, since the left and right front parts of the vehicle are provided with detachable connecting frames 3, and the front middle part of the vehicle is a prohibited area for detachable connecting frames, if the vehicle has a front collision ( Figure 9 The arrow in the middle of the figure indicates a frontal collision (or side collision). Possible scenarios include: the front center of the vehicle deforming to absorb energy, while the left and right front sections of the vehicle collapse and / or deform and / or fold toward the center of the vehicle. It is understandable that since there is no driver's seat in the front center of the passenger compartment, this design of this embodiment is intended to minimize the risk of occupant injury in a collision.

[0060] Please continue reading Figure 8 and Figure 10In order to ensure the possible benefits of the design of the prohibited detachable connection area, the integrated ring headlight of this embodiment can be basically regarded as being located on the front side of the front-end module 1, and includes a left lamp body 5 and a right lamp body 6; wherein the left lamp body 5 and the right lamp body 6 are arranged at intervals, the right lamp body 6 is fixedly connected to the mounting points A, B, C and D on the front-end module 1 to be mounted on the front-end module 1, and the left lamp body 5 is fixedly connected to the mounting points E, F, G and H on the front-end module 1 to be mounted on the front-end module 1; after the integrated ring headlight is assembled with the front-end module 1, the space between the left lamp body 5 and the right lamp body 6 can form an alignment relationship with at least a portion of the prohibited detachable connection area.

[0061] From the above design, it can be seen that since the integrated ring headlight adopts a scheme in which the left lamp body 5 and the right lamp body 6 are arranged at intervals, if the vehicle is hit from the front or side, the integrated ring headlight will not affect the realization of the aforementioned design effects such as "the left front and right front parts of the vehicle can be deformed and / or crushed relatively independently in the impact scenario" and "if the vehicle is hit from the front or side, the possible scenarios are: the front middle part of the vehicle deforms to absorb energy, and the left front and right front parts of the vehicle crush and / or deform and / or both fold toward the middle of the vehicle".

[0062] It should be noted that the aforementioned "left lamp body 5 and right lamp body 6 are spaced apart" can be implemented by providing a space between the left and right lamp bodies 5, 6, or by providing a weak structure between the left and right lamp bodies 5, 6 that is susceptible to breaking under external force. For example, in a possible embodiment, a vehicle logo can be placed in the space between the left and right lamp bodies 5, 6, or directly in front of or behind the space, and the logo can connect the left and right lamp bodies 5, 6 to form the aforementioned weak structure.

[0063] In addition, it should be noted that how to divide the aforementioned prohibited detachable connection area on the anti-collision beam 2 is a matter that can be flexibly set by those skilled in the art according to needs. Figure 9 and Figure 11 As shown, the area between the two positions on the front-end module 1 that are respectively matched with the two detachable connecting frames 3 can be set as a prohibited detachable connecting frame area (refer to Figure 11 The area between the two vertical dotted lines in the figure can be the space between the left lamp body 5 and the right lamp body 6 (due to the space between them). Figure 11 In the present invention, to facilitate the separation of the left and right lamp bodies 5, 6, depending on the specific structure of the integrated ring-shaped headlight, at least a portion of the detachable connecting area is aligned with the space between the left and right lamp bodies 5, 6, to ensure that the center front portion is weaker than the left and right front portions.

[0064] Please refer back to Figure 8 , third holes 11 are exemplarily provided on the upper left and upper right ends of the front end module 1, and fourth holes 12 are exemplarily provided on the lower left and lower right ends of the front end module 1. The third holes 11 are mounting points for the vehicle hood lock (not shown) on the front end module 1, and the fourth holes 12 are mounting points for the front bumper assembly (not shown) on the front end module 1. Similarly, the upper portion of the front end module 1 also provides mounting points for components located at the front of the vehicle, including but not limited to the cooling module (not shown), the hood buffer block (not shown), and so on.

[0065] Based on the above, considering that the upper portion of the front-end module 1 provides mounting points for multiple components located at the front of the vehicle, and is a location that is interconnected and affects the entire vehicle, to ensure that the upper portion of the front-end module 1 is as little damaged as possible, or is damaged as last as possible, when the vehicle is hit, the vehicle of this embodiment has the following configuration:

[0066] For example, the vehicle further comprises two connecting members 7 and two longitudinal beams 8 ( Figure 8 Only one connector 7 and one longitudinal beam 8 are shown. Connectors 7 and longitudinal beams 8 are arranged in a one-to-one correspondence. Taking the connector 7 and longitudinal beam 8 on the left side of the vehicle as an example, the front end of connector 7 is fixedly connected to the upper left portion of front-end module 1, and the rear end is fixedly connected to longitudinal beam 8. It is particularly important to emphasize that the front end of connector 7 and front-end module 1 are fixedly connected in a conventional threaded manner. In other words, front-end module 1 is a single unit, but its lower portion is detachably fixed to detachable connecting frame 3, while its upper portion is connected to the front end of connector 7 in a conventional fixed manner. It is understandable that the connection strength between the upper portion of front-end module 1 and connector 7 is greater than the connection strength between the lower portion of front-end module 1 and detachable connecting frame 3.

[0067] Based on the above structure, when the vehicle is not in a collision, the front-end module 1 generally has good rigidity and strength, reliably providing mounting points for multiple vehicle components. In the event of a collision, the front-end module 1 can promptly deform and collapse at its lower portion to absorb energy and cushion the impact force, while minimizing the risk of damage to vehicle components mounted on it.

[0068] More specifically, when a vehicle is struck, the following may occur: At the beginning of the collision, the upper portion of the front-end module 1 is likely to remain firmly fixed in place (due to its traditional fixed connection with a stronger connection force than the lower portion of the front-end module 1). At this time, the fixing member 4 moves rearward relative to the detachable connecting bracket 3 in response to the impact force. The lower portion of the front-end module 1 is subjected to the impact force and / or impacted by components on its front side, such as the integrated ring headlight. Driven by the impact force and the rearward movement of the fixing member 4, the lower portion of the front-end module 1 deforms and moves rearward. Simultaneously, the upper portion of the front-end module 1 exerts a counterforce, similar to a push, on the lower portion of the front-end module 1. The lower portion of the front-end module 1, affected by this counterforce, undergoes more severe deformation and / or collapse, similar to rotation, as the impact force propagates and the collision progresses. Subsequently, if the impact force is insufficient to destroy the fixed connection of the upper portion of the front-end module 1, the upper portion of the front-end module 1 will maintain its original fixed connection until the collision ends, thereby reducing the probability of damage to components connected to the upper portion of the front-end module 1 due to the collision. On the contrary, even if the collision force is too great, the upper part of the front-end module 1 will eventually deform and collapse. In this case, the aforementioned situation of "firmly fixed in place and exerting a similar counter-pushing force on the lower part of the front-end module 1" will undoubtedly increase the buffering and absorption effect of the front structure of the vehicle against the collision force.

[0069] Furthermore, since the rear side of the upper part of the vehicle's front-end module 1 is generally provided with fragile components such as a water tank, the above-mentioned design that makes the upper part of the front-end module 1 less likely to deform and collapse is also beneficial to reducing the probability of damage to fragile components such as the water tank in a vehicle collision.

[0070] In summary, the present invention provides a detachable connecting frame 3 that is fixed to the anti-collision beam 2 and can be detached from the front-end module 1 under the action of an external force. This ensures that the front structure of a vehicle using the detachable connecting frame 3 will not be too rigid, and that the vehicle will not cause excessive damage to pedestrians or other vehicles during a collision with them. At the same time, the above-mentioned arrangement can also ensure that the vehicle meets the evaluation criteria related to the collision.

[0071] Furthermore, the aforementioned designs demonstrate that when the main body 31 is configured to mate with the front surface of the anti-collision beam 2 and the rear extension 32 is configured to mate with the front module 1, while ensuring that the detachable connecting frame 3 itself possesses a certain degree of rigidity, the space occupied by the rear extension 32 in the vehicle's fore-aft direction is actually space required by the front module 1, and the design of the rear extension 32 does not result in the occupation of excess space. Furthermore, the main body 31 does not occupy excessive space in the vehicle's fore-aft direction. Therefore, the design of the detachable connecting frame 3 is particularly suitable for vehicles with limited front crumple space.

[0072] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A detachable connecting frame, characterized in that: It comprises a main body (31) and a rear extension (32); the main body (31) is used for fixedly connecting with the anti-collision beam (2); the rear extension (32) is formed by extending rearward from the main body (31) and is used for being detachably fixed with the front-end module (1); A detachable connecting hole (321) is provided on the rear extension portion (32) along the up-down direction; the detachable connecting hole (321) includes a matching area (3211) and a convergence channel (3212) arranged in sequence from front to back; the matching area (3211) is for the fixing member (4) used to connect the detachable connecting frame (3) with the front-end module (1) to pass through; the convergence channel (3212) is connected to the matching area (3211), and the convergence channel (3212) is first narrowed and then expanded relative to the matching area (3211); the convergence channel (3212) interrupts the rear edge contour of the rear extension portion (32), and forms a rear opening structure on the rear extension portion (32) for the fixing member (4) to be detached due to external force.

2. The detachable connecting frame according to claim 1, wherein: The convergence channel (3212) includes a fixed width section (3213) and an expansion section (3214) arranged in sequence from front to back, the front end of the fixed width section (3213) is connected to the matching area (3211) to form a region that passes through the rear extension (32), and the rear end of the fixed width section (3213) is connected to the expansion section (3214) to form a region that passes through the rear extension (32); the fixed width section (3213) makes a part of the convergence channel (3212) have a constant width, and the expansion section (3214) makes the width of a part of the convergence channel (3212) gradually increase from front to back.

3. The detachable connecting frame according to claim 2, wherein: The fixed width section (3213) is a channel extending straight from front to back, and the expansion section (3214) is in a trumpet shape.

4. The detachable connecting frame according to claim 1, characterized in that: The rear extension portion (32) is provided with a convex bulge (322), the convex bulge (322) is formed on the rear extension portion (32) and extends upward from the bottom, and the detachable connection hole (321) is provided on the convex bulge (322).

5. A vehicle front structure, characterized in that: It comprises a detachable connecting frame (3) as claimed in any one of claims 1 to 4, and further comprises a front-end module (1) and an anti-collision beam (2).

6. The vehicle front structure according to claim 5, wherein: The main body (31) is provided with a first hole (311), and three first holes (311) penetrate the main body (31) in the front-to-back direction, and the center lines of the three first holes (311) can form a triangular structure; the first holes (311) are for the insertion of fixing parts used to fix the main body (31) and the anti-collision beam (2).

7. The vehicle front structure according to claim 5, wherein: It also includes a fixing member (4); the edges of the main body (31) and the rear extension (32) have a structure without a forward flange; the rear extension (32) is connected to the front module (1) and is in contact with the lower surface of the front module (1); the main body (31) is fixedly connected to the front surface of the anti-collision beam (2), and a portion of it is in contact with the front surface of the anti-collision beam (2); A fixing member (4) penetrates the rear extension (32) and the front-end module (1) from bottom to top, so that the detachable connecting frame (3) and the lower part of the front-end module (1) are detachably fixed together; the connection relationship between the fixing member (4) and the front-end module (1) is configured such that the fixing member (4) can move backward relative to the detachable connecting frame (3) under the action of an external force, and drive the lower part of the front-end module (1) to change its shape.

8. The vehicle front structure according to claim 7, wherein: The invention also includes a connecting member (7) and a vehicle longitudinal beam (8) arranged in a one-to-one correspondence; the front end of the connecting member (7) is fixedly connected to the upper part of the front end module (1), and the rear end is fixedly connected to the vehicle longitudinal beam (8); the fixed connection relationship between the front end of the connecting member (7) and the upper part of the front end module (1) is configured to apply a reaction force to the lower part of the front end module (1) when the lower part of the front end module (1) changes its own shape.

9. The vehicle front structure according to claim 7, wherein: It also includes a left lamp body (5) and a right lamp body (6), wherein the left lamp body (5) and the right lamp body (6) are respectively fixedly connected to the front-end module (1), and the left lamp body (5) and the right lamp body (6) are spaced apart from each other; The detachable connecting frame (3) is fixed to the left and right ends of the anti-collision beam (2), respectively. The middle part of the anti-collision beam (2) is configured as a detachable connecting frame prohibited area. At least part of the detachable connecting frame prohibited area is aligned with the space between the left lamp body (5) and the right lamp body (6), so that the middle part of the front of the vehicle is weaker than the left and right parts of the front of the vehicle.

10. A vehicle, characterized in that: The vehicle comprises the front structure according to any one of claims 5 to 9.

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