Front auxiliary frame rear end mounting structure and vehicle with same

Abstract

The utility model discloses a front auxiliary frame rear end mounting structure and a vehicle with the front auxiliary frame rear end mounting structure. The front auxiliary frame rear end mounting structure comprises a front auxiliary frame and a rear auxiliary frame, a dash panel; the connecting piece is connected to the front side of the dash panel, a connecting part is arranged on the connecting piece, the connecting part forwards protrudes out of the dash panel, and the rear end of the front auxiliary frame is connected with the connecting part. According to the mounting structure for the rear end of the front auxiliary frame, the rear end of the front auxiliary frame is connected with the connecting part located on the front side of the dash panel, so that when the front auxiliary frame is collided, the probability that the front auxiliary frame intrudes into the dash panel or extrudes the battery pack can be reduced, the safety of a vehicle is improved, the cruising ability of the battery pack cannot be influenced, and the service life of the battery pack is prolonged. Installation of the rear end of the front auxiliary frame is achieved through the connecting piece, the structure of the front coaming and the structure of the front auxiliary frame do not need to be redesigned, and the production cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and particularly relates to a rear-end mounting structure of a front subframe and a vehicle having the same. Background Art

[0002] In order to increase the structural strength of the front engine compartment, a front subframe is usually arranged on the lower side of the front engine compartment. When the vehicle is subjected to a frontal collision, under the action of a huge impact force, the front subframe may intrude into the front bulkhead or the battery pack, thus affecting the safety of the passengers in the vehicle. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a rear-end mounting structure of a front subframe, and the rear-end mounting structure of the front subframe can improve the safety of the vehicle.

[0004] The utility model also provides a vehicle having the above-mentioned rear-end mounting structure of the front subframe.

[0005] The rear-end mounting structure of the front subframe according to the first aspect of the utility model includes: a front subframe; a front bulkhead; a connecting member, the connecting member is connected to the front side of the front bulkhead, a connecting portion is provided on the connecting member, the connecting portion protrudes forward from the front bulkhead, and the rear end of the front subframe is connected to the connecting portion.

[0006] According to the rear-end mounting structure of the front subframe of the first aspect of the utility model, by connecting the rear end of the front subframe to the connecting portion located on the front side of the front bulkhead, when the front subframe is collided, the probability of the front subframe intruding into the front bulkhead or squeezing the battery pack can be reduced, the safety of the vehicle is improved, and the battery life of the battery pack is not affected. The rear end of the front subframe is mounted through the connecting member, and the structures of the front bulkhead and the front subframe do not need to be redesigned, so the production cost can be reduced.

[0007] According to some embodiments of the utility model, the connecting portion is arranged on the lower side of the front bulkhead, a weak area is formed on the connecting member, and the weak area is configured to break when the backward impact force on the front subframe is greater than a set threshold value, so that the connecting portion can move in the up-down direction.

[0008] According to some embodiments of the utility model, the connecting member further includes a connecting body and a connecting plate, the connecting plate is connected to the connecting body, the rear end of the connecting plate is connected to the lower end of the front bulkhead, the connecting portion is formed on the connecting plate, the weak area is arranged between the connecting plate and the connecting body, and a plurality of tearing guiding holes are formed in the weak area, and the plurality of tearing guiding holes are arranged at intervals left and right.

[0009] According to some embodiments of the present utility model, the rear-end mounting structure of the front subframe further includes: a suspension member, which is connected between the connecting plate and the connecting body, and the suspension member is configured to be stretchable in the up-and-down direction.

[0010] According to some embodiments of the present utility model, the suspension member includes a suspension plate, the suspension plate extends in the left-right direction of the vehicle, the connecting plate is connected to the suspension plate, the upper end of the suspension plate has a flanging that folds forward, and the flanging is connected to the connecting body.

[0011] According to some embodiments of the present utility model, both the left and right ends of the suspension plate are connected to the connecting body through extension segments, and the extension segments extend along a curve and / or a broken line in the left-right direction of the vehicle.

[0012] According to some embodiments of the present utility model, the connecting portion includes a fixing hole, an installation hole is formed at the rear end of the front subframe, and the rear-end mounting structure of the front subframe further includes: a fastener, the fastener sequentially passes through the fixing hole and the installation hole to connect the front subframe to the connecting member, and the fastener is connected to the suspension member.

[0013] According to some embodiments of the present utility model, the rear-end mounting structure of the front subframe further includes an engine compartment support beam, and the engine compartment support beam includes: a longitudinal beam, the longitudinal beam extends in the front-rear direction of the vehicle, there are two longitudinal beams, and the two longitudinal beams are arranged at intervals in the left-right direction of the vehicle, and the rear end of the longitudinal beam is connected to the front bulkhead; a cross beam, the cross beam extends in the left-right direction of the vehicle, the cross beam is connected between the two longitudinal beams and the cross beam is connected to the lower part of the front bulkhead.

[0014] According to some embodiments of the present utility model, the connecting body includes: a first side plate, a second side plate and a third side plate that are sequentially connected in the left-right direction of the vehicle. After the first side plate, the second side plate and the third side plate are connected, they form a U shape. The connecting plate is connected to the lower ends of the first side plate, the second side plate and the third side plate. The first side plate is connected to the longitudinal beam, the second side plate is connected to the longitudinal beam and the cross beam, and the third side plate is connected to the cross beam and the front bulkhead.

[0015] A vehicle according to the second aspect of the present utility model includes: the rear-end mounting structure of the front subframe according to the first aspect of the present utility model as described above.

[0016] By providing the rear-end mounting structure of the front subframe according to the first aspect of the present utility model, the vehicle according to the second aspect of the present utility model can improve the safety of the vehicle.

[0017] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. Brief Description of the Drawings

[0018] Figure 1 is a schematic diagram of the rear-end mounting structure of the front subframe according to an embodiment of the present utility model;

[0019] Figure 2 is Figure 1 a schematic diagram of another angle of the rear-end mounting structure of the front subframe shown in ;

[0020] Figure 3 is Figure 1 a schematic diagram of yet another angle of the rear-end mounting structure of the front subframe shown in ;

[0021] Figure 4 is a schematic diagram of a connecting member, a suspension member, and a fastening member according to an embodiment of the present utility model;

[0022] Figure 5 is Figure 4 a schematic diagram of the connecting member shown in.

[0023] Reference Numerals:

[0024] 100, rear-end mounting structure of the front subframe;

[0025] 10, cross beam; 11, longitudinal beam;

[0026] 20, front bulkhead;

[0027] 30, connecting member; 31, connecting body; 311, first side plate; 312, second side plate; 313, third side plate; 32, connecting plate; 321, fixing hole; 33, tear guiding hole;

[0028] 40, suspension member; 41, suspension plate; 42, flanging; 43, extension section;

[0029] 50, fastening member. Detailed Description of the Embodiment

[0030] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model and should not be construed as limiting the present utility model.

[0031] Reference is made below to Figures 1-5 describe the rear-end mounting structure 100 of the front subframe according to an embodiment of the first aspect of the present utility model.

[0032] As Figures 1-3 shown, the rear-end mounting structure 100 of the front subframe according to the first aspect embodiment of the present utility model includes: a front subframe (not shown in the drawings), a front bulkhead 20, and a connecting member 30.

[0033] Specifically, the connecting member 30 is connected to the front side of the front bulkhead 20. The connecting member 30 is provided with a connecting portion, and the connecting portion protrudes forward from the front bulkhead 20. The rear end of the front subframe is connected to the connecting portion.

[0034] Among them, for those skilled in the art, it can be understood that the battery pack is disposed at the rear side of the front bulkhead 20, and the front bulkhead 20 participates in enclosing to form a driving space inside the vehicle.

[0035] The connecting portion protrudes forward from the front bulkhead 20. After the rear end of the front subframe is connected to the connecting portion, a buffer space will be formed between the front subframe and the front bulkhead 20. When the vehicle collides and causes the front subframe to displace backward, the front subframe squeezes the connecting member 30 and the buffer space can provide a displacement space for the rear end of the front subframe. In this way, the probability of the front subframe invading the front bulkhead 20 and causing harm to the personnel in the driving space can be reduced, and the probability of the front subframe squeezing the battery pack can be reduced. At the same time, there is no need to reserve a safety space between the battery pack and the front bulkhead 20, and the size of the battery pack can be made larger, thereby improving the endurance of the battery pack.

[0036] When realizing the connection between the rear end of the front bulkhead 20 and the front subframe, by changing the dimensional parameters of the connecting member 30, the adaptation between the rear end of the front subframe and the front bulkhead 20 can be realized. Compared with the scheme of modifying the structures of the front subframe and the front bulkhead 20, the production cost can be reduced.

[0037] According to the rear-end mounting structure 100 of the front subframe in the first aspect embodiment of the present utility model, by connecting the rear end of the front subframe to the connecting portion located on the front side of the front bulkhead 20, when the front subframe is collided, the probability of the front subframe invading the front bulkhead 20 or squeezing the battery pack can be reduced, the safety of the vehicle can be improved, and the endurance of the battery pack will not be affected. By using the connecting member 30 to realize the installation of the rear end of the front subframe, there is no need to re-design the structures of the front bulkhead 20 and the front subframe, and the production cost can be reduced.

[0038] In some embodiments of the present utility model, the connecting portion is disposed on the lower side of the front bulkhead 20, and a weak area is formed on the connecting member 30. The weak area is configured to rupture when the backward impact force on the front subframe is greater than a set threshold, so that the connecting portion can move in the up and down directions.

[0039] When the impact force on the current subframe in the backward direction is greater than the set threshold value, the weak area ruptures. During the backward movement of the front subframe, under the action of gravity, the rear end of the front subframe will sink. In this way, when the front subframe moves backward, the rear end of the front subframe will extend into the lower side of the front apron 20 and the battery pack, thereby further improving the safety of the vehicle. At the same time, the structural deformation of the connecting member 30 has less influence on the area of the front apron 20, and the probability of the front apron 20 deforming and intruding into the vehicle interior space can be reduced.

[0040] In some embodiments of the present invention, such as Figure 4 and Figure 5 shown, the connecting member 30 further includes a connecting body 31 and a connecting plate 32. The connecting portion is formed on the connecting plate 32. The rear end of the connecting plate 32 is connected to the lower end of the front apron 20. The connecting plate 32 is connected to the connecting body 31. The weak area is provided between the connecting plate 32 and the connecting body 31. A plurality of tearing guiding holes 33 are formed in the weak area, and the plurality of tearing guiding holes 33 are arranged at intervals left and right.

[0041] When the front subframe is impacted, after the weak area ruptures, the rear end of the front subframe drives the connecting plate 32 to deform downward. At the same time, the rear end of the connecting plate 32 is connected to the lower end of the front apron 20, which can guide the deformation of the connecting plate 32, increase the probability of the front subframe extending into the lower side of the front apron 20 and the battery pack, further improve the safety of the vehicle, and the connecting plate 32 can prevent the rear end of the front subframe from falling off the vehicle, thereby reducing the damage of the front subframe to other parts of the vehicle and reducing the accident repair cost, and further improving the safety of the vehicle.

[0042] Preferably, the connecting plate 32 is welded to the front apron 20.

[0043] In some embodiments of the present invention, such as Figure 4 and Figure 5 shown, the rear end mounting structure 100 of the front subframe further includes: a suspension member 40, and the suspension member 40 is connected between the connecting plate 32 and the connecting body 31. The suspension member 40 is configured to be stretchable in the up and down direction.

[0044] When the front subframe drives the connecting plate 32 to deform, the connecting plate 32 stretches the suspension member 40 in the up and down direction. In this way, the rear end of the front subframe can drive the connecting portion to move in the up and down direction, and when the rear end of the connecting plate 32 falls off the front apron 20, the suspension member 40 can still suspend the connecting plate 32 on the connecting body 31, preventing the rear end of the front subframe from completely falling off the vehicle, and further improving the safety of the vehicle. In addition, during the normal operation of the vehicle, the suspension member 40 can also improve the reliability of the connection between the rear end of the front subframe and the vehicle body.

[0045] In some embodiments of the present invention, such asFigure 4 and Figure 5 As shown in Figure 5 , the suspension member 40 includes a suspension plate 41 which extends in the left - right direction of the vehicle. The connecting plate 32 is connected to the suspension plate 41. The upper end of the suspension plate 41 has a flanging 42 that folds forward, and the flanging 42 is connected to the connecting body 31.

[0046] During the process of the connecting plate 32 stretching the suspension member 40, the connecting plate 32 pulls the suspension plate 41 to move downward, so that the suspension plate 41 folds downward relative to the flanging 42. Thus, the stretching of the suspension plate 41 in the up - down direction can be realized. Preferably, the flanging 42 and the connecting body 31 are connected by welding.

[0047] In some embodiments of the present utility model, as Figure 4 and Figure 5 shown, both the left and right ends of the suspension plate 41 are connected to the connecting body 31 through extension segments 43. The extension segments 43 extend along a curve and / or a broken line in the left - right direction of the vehicle. That is to say, the extension segments 43 may extend along a curve in the left - right direction of the vehicle, or the extension segments 43 may extend along a broken line in the left - right direction of the vehicle, or the extension segments 43 may extend along a curve and a broken line in the left - right direction of the vehicle.

[0048] During the process of the connecting plate 32 stretching the suspension member 40, the connecting plate 32 pulls the suspension plate 41 to move downward, and the suspension plate 41 folds relative to the flanging 42. At the same time, the suspension plate 41 stretches the extension segments 43. Thus, the stretching of the suspension plate 41 in the up - down direction can be realized. Among them, by connecting the left and right ends of the suspension plate 41 to the connecting body 31, the connection strength and connection reliability between the suspension plate 41 and the connecting body 31 can be improved. Preferably, the left and right ends of the suspension plate 41 and the connecting body 31 are connected by welding.

[0049] For the vehicle provided with the rear - end mounting structure 100 of the front sub - frame in this embodiment, after a frontal collision of the vehicle, the rear end of the front sub - frame moves towards the lower side of the front bulkhead 20 and the lower side of the battery pack. After multiple collision tests, the following results are obtained: Compared with the situation where the rear end of the front sub - frame is directly connected to the lower end of the front bulkhead 20, the occupant load criterion can be reduced by 10%, the dummy score is improved to full marks, the intrusion amount of the front bulkhead 20 is reduced by 50%, the dummy leg score is increased from 1.36 to 1.889, and the improvement ratio is 39%. The safety performance is significantly improved. At the same time, the materials used for strengthening the acting position at the rear end of the front sub - frame in the conventional setting can be saved, and the production cost can be reduced.

[0050] In some embodiments of the present utility model, as Figure 4 and Figure 5As shown, the connecting portion includes a fixing hole 321. An installation hole is formed at the rear end of the front subframe. The installation structure 100 of the rear end of the front subframe further includes: a fastener 50. The fastener 50 sequentially passes through the fixing hole 321 and the installation hole to connect the front subframe to the connecting member 30, and the fastener 50 is connected to the suspension member 40.

[0051] In this way, the connection between the connecting plate 32 and the suspension member 40 can be realized. Moreover, the contact area between the fastener 50 and the suspension member 40 is relatively large, which can improve the connection strength between the connecting plate 32 and the suspension member 40 and reduce the connection difficulty between the connecting plate 32 and the suspension member 40. Preferably, the fastener 50 is welded to the suspension plate 41 of the suspension member 40.

[0052] In some embodiments of the present invention, as Figure 1 and Figure 2 shown, the installation structure 100 of the rear end of the front subframe further includes an engine compartment support beam. The engine compartment support beam includes: a longitudinal beam 11 and a cross beam 10.

[0053] Specifically, the longitudinal beam 11 extends along the front-rear direction of the vehicle. There are two longitudinal beams 11, and the two longitudinal beams 11 are arranged at intervals in the left-right direction of the vehicle. The rear end of the longitudinal beam 11 is connected to the front bulkhead 20. The cross beam 10 extends along the left-right direction of the vehicle. The cross beam 10 is connected between the two longitudinal beams 11 and the lower part of the front bulkhead 20 is connected to the cross beam 10. Among them, the cross beam 10 can improve the structural strength of the front bulkhead 20 area, and the cross beam 10 and the longitudinal beam 11 can provide support for the components in the front engine compartment.

[0054] In some embodiments of the present invention, as Figure 1 and Figure 5 shown, the connection main body 31 includes: a first side plate 311, a second side plate 312 and a third side plate 313 that are sequentially connected in the left-right direction of the vehicle. After the first side plate 311, the second side plate 312 and the third side plate 313 are connected, they are in a U shape. The connecting plate 32 is connected to the lower ends of the first side plate 311, the second side plate 312 and the third side plate 313. The first side plate 311 is connected to the longitudinal beam 11. The second side plate 312 is connected to the longitudinal beam 11 and the cross beam 10. The third side plate 313 is connected to the cross beam 10 and the front bulkhead 20.

[0055] Thus, the arrangement of the connection main body 31 on the vehicle can be realized. Among them, a front bulkhead reinforcement plate is provided at the bottom of the front bulkhead 20. A first reinforcement plate is connected between the lower end of the longitudinal beam 11 and the bottom of the front bulkhead 20. A second reinforcement plate is connected between one side of the longitudinal beam 11 in the left-right direction and the front end of the front bulkhead 20.

[0056] The vehicle according to the second aspect embodiment of the present invention includes: the installation structure 100 of the rear end of the front subframe according to the first aspect embodiment of the present invention above.

[0057] According to the vehicle of the second aspect embodiment of the present utility model, by providing the rear end mounting structure 100 of the front subframe according to the first aspect embodiment of the present utility model, the safety of the vehicle can be improved.

[0058] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present utility model.

[0059] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0060] In the present utility model, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "connected to", "fixed" and the like should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0061] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0062] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A rear mounting structure of a front subframe, characterized in that, Comprising: Front subframe; Front bulkhead; A connecting member, the connecting member being connected to the front side of the front bulkhead, the connecting member being provided with a connecting portion, the connecting portion protruding forward from the front bulkhead, and the rear end of the front subframe being connected to the connecting portion.

2. The rear end mounting structure of the front subframe according to claim 1, characterized in that, The connecting portion is provided on the lower side of the front bulkhead, and a weak area is formed on the connecting member, the weak area being configured to break when the backward impact force on the front subframe is greater than a set threshold, so that the connecting portion is movable in the up and down direction.

3. The rear end mounting structure of the front subframe according to claim 2, characterized in that, The connecting member further includes a connecting body and a connecting plate, the connecting plate being connected to the connecting body, the connecting portion being formed on the connecting plate, the rear end of the connecting plate being connected to the lower end of the front bulkhead, and the weak area being provided between the connecting plate and the connecting body. A plurality of tear guiding holes are formed in the weak area, and the plurality of tear guiding holes are arranged at intervals in the left and right directions.

4. The rear end mounting structure of the front subframe according to claim 3, characterized in that, Further comprising: A suspension member, the suspension member being connected between the connecting plate and the connecting body, the suspension member being configured to be stretchable in the up and down direction.

5. The rear end mounting structure of the front subframe according to claim 4, characterized in that, The suspension member includes a suspension plate, the suspension plate extending in the left and right directions of the vehicle, the connecting plate being connected to the suspension plate, and the upper end of the suspension plate having a flanging portion that is folded forward, the flanging portion being connected to the connecting body.

6. The rear end mounting structure of the front subframe according to claim 5, characterized in that Both the left and right ends of the suspension plate are connected to the connecting body through extension sections, and the extension sections extend along a curve and / or a broken line in the left and right directions of the vehicle.

7. The rear end mounting structure of the front subframe according to claim 4, characterized in that The connecting portion includes a fixing hole, and an installation hole is formed at the rear end of the front subframe. The rear end installation structure of the front subframe further includes: a fastener, the fastener sequentially passing through the fixing hole and the installation hole to connect the front subframe to the connecting member, and the fastener being connected to the suspension member.

8. The rear end mounting structure of the front subframe according to claim 3, characterized in that, Further comprising an engine compartment support beam, the engine compartment support beam including: Longitudinal beams, the longitudinal beams extending in the front and rear directions of the vehicle, there being two longitudinal beams, the two longitudinal beams being arranged at intervals in the left and right directions of the vehicle, and the rear ends of the longitudinal beams being connected to the front bulkhead; A cross beam, the cross beam extending in the left and right directions of the vehicle, the cross beam being connected between the two longitudinal beams and the cross beam being connected to the lower part of the front bulkhead.

9. The rear end mounting structure of the front subframe according to claim 8, characterized in that, The connecting body includes: a first side plate, a second side plate, and a third side plate that are sequentially connected in the left and right directions of the vehicle. After the first side plate, the second side plate, and the third side plate are connected, they form a U shape. The connecting plate is connected to the lower ends of the first side plate, the second side plate, and the third side plate. The first side plate is connected to the longitudinal beam, the second side plate is connected to the longitudinal beam and the cross beam, and the third side plate is connected to the cross beam and the front bulkhead.

10. A vehicle, characterized in that, Comprising: The rear end installation structure of the front subframe according to any one of claims 1-9.

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