CN114475497A - Energy absorption box mounting structure - Google Patents
Energy absorption box mounting structure Download PDFInfo
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- CN114475497A CN114475497A CN202210150789.3A CN202210150789A CN114475497A CN 114475497 A CN114475497 A CN 114475497A CN 202210150789 A CN202210150789 A CN 202210150789A CN 114475497 A CN114475497 A CN 114475497A
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- assembly
- energy absorption
- box
- collision
- mounting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/24—Arrangements for mounting bumpers on vehicles
- B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/24—Arrangements for mounting bumpers on vehicles
- B60R2019/247—Fastening of bumpers' side ends
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention provides an energy absorption box mounting structure which comprises an anti-collision assembly and a side beam assembly; a main energy-absorbing assembly and an auxiliary energy-absorbing assembly are fixedly arranged between the anti-collision assembly and the side beam assembly, and the mounting height of the auxiliary energy-absorbing assembly and the mounting height of the main energy-absorbing assembly are arranged in a staggered manner; the surface of the auxiliary energy absorption assembly facing the anti-collision assembly is completely abutted against the anti-collision assembly, and the surface of the auxiliary energy absorption assembly facing the boundary beam assembly is completely abutted against the boundary beam assembly. This application changes through main energy-absorbing subassembly and vice energy-absorbing subassembly and passes power route to this reduces the unbalance of impact transmission, and then the boundary beam subassembly of more adaptation and energy-absorbing box subassembly connection, makes on the effectual transmission of impact can the boundary beam subassembly.
Description
Technical Field
The invention relates to the field of vehicle manufacturing, in particular to an energy absorption box mounting structure.
Background
The automobile energy absorption box is an important energy absorption device in an automobile bumper system, is arranged between an anti-collision beam and a front wheel cover upper edge beam, and exists as a low-speed safety protection system. When an object is in strong collision, the object can be subjected to plastic deformation, which mainly comprises three modes of complete deformation, buckling deformation and wrinkle deformation, wherein the wrinkle deformation is an ideal energy absorption mode; the energy absorption box is a metal thin-wall component, and is easy to wrinkle and deform during collision, so that the purposes of effectively absorbing collision energy and reducing the damage of collision force to a vehicle body longitudinal beam as far as possible during low-speed collision of a vehicle are met.
As shown in fig. 1-2, in the prior art, the primary energy-absorbing box and the secondary energy-absorbing box are at the same height, and are fixed between the impact beam and the front wheel cover roof beam, and the mounting height is at a lower position. At present, the front overhang of an electric vehicle is short, so that the bending tendency of a front wheel cover upper side beam is aggravated, and an energy absorption box at a lower position cannot effectively transmit collision force to the bending part, so that the existing energy absorption box force transmission path is not suitable for the front wheel cover upper side beam with aggravated bending.
As described above, when a collision occurs, damage to the wheel house roof side rail is increased due to unbalance of the transmission of the collision load force, so that collision damage to the automobile itself is increased, and even safety of the vehicle occupant may be threatened.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The invention provides an energy-absorbing box mounting structure, which aims to solve the technical problem that the bending of a side beam is aggravated due to the fact that a force transmission path of an existing energy-absorbing box is not adaptive.
An energy absorption box mounting structure comprises an anti-collision assembly and a side beam assembly;
a main energy-absorbing assembly and an auxiliary energy-absorbing assembly are fixedly arranged between the anti-collision assembly and the side beam assembly, and the mounting height of the auxiliary energy-absorbing assembly and the mounting height of the main energy-absorbing assembly are arranged in a staggered manner;
the surface of the auxiliary energy absorption assembly facing the anti-collision assembly is completely abutted against the anti-collision assembly, and the surface of the auxiliary energy absorption assembly facing the boundary beam assembly is completely abutted against the boundary beam assembly.
When the energy-absorbing assembly is installed, the installation heights of the main energy-absorbing assembly and the auxiliary energy-absorbing assembly are arranged in a staggered mode, when the anti-collision assembly is collided, collision force can be transmitted with the auxiliary energy-absorbing assembly through the main energy-absorbing assembly with different heights, the energy-absorbing assembly at the higher position transmits the collision force to the higher position and transmits the collision force to the side beam assembly, the energy-absorbing assembly at the lower position transmits the collision force to the lower position and transmits the collision force to the side beam assembly, and therefore the collision force can be transmitted through the energy-absorbing assemblies with different heights in a dispersed mode, and a force transmission path is changed; the unbalance of the transmission of the collision force can be greatly reduced through the changed force transmission path, so that the side beam assembly connected with the energy absorption box assembly is more adaptive, the collision force can be effectively transmitted to the side beam assembly, and the concentration of the collision force is prevented;
therefore, the improved mounting structure can reduce damage to the side beam assembly, so that collision damage to the automobile is reduced, and safety of personnel in the automobile is further guaranteed.
Preferably, the side beam assembly comprises a side mounting plate, a rear side beam and a rear longitudinal beam, and the rear side beam and the rear longitudinal beam are respectively arranged on the mounting plate;
the main energy absorption assembly is fixedly arranged between the mounting plate and the anti-collision assembly, and the surface of the auxiliary energy absorption assembly facing the mounting plate is completely abutted to the mounting plate.
The main energy-absorbing assembly and the auxiliary energy-absorbing assembly are fixedly arranged on the mounting plate, so that the collision force transmitted by the energy-absorbing assemblies can be transmitted to the rear side beam and the rear longitudinal beam which are fixedly arranged on the mounting plate, and the transmission and the dispersion of the collision force are completed.
Preferably, the anti-collision assembly comprises an anti-collision beam and a local beam, and the local beam is fixedly arranged on the anti-collision beam;
the main energy absorption assembly is fixedly arranged between the mounting plate and the anti-collision beam, and the auxiliary energy absorption assembly is far away from the surface of the mounting plate and is simultaneously abutted against the anti-collision beam and the local beam.
When collision happens, the collision beam can transmit the collision force to the main energy-absorbing assembly and the auxiliary energy-absorbing assembly which are connected with the collision beam when being impacted by the collision force, and meanwhile, the Z-direction cross section area of the collision beam can be increased through the added local beam, so that the collision beam can transmit more energy to the rear side beam and the rear longitudinal beam and disperse more energy, and the collision performance is improved.
Preferably, the main energy absorption assembly comprises at least one group of main energy absorption plates, and two main energy absorption plates in each group are fastened with each other to form a main energy absorption box
The main energy absorption box is fixedly arranged between the mounting plate and the anti-collision beam, and the mounting surface of the main energy absorption box corresponds to the mounting surface of the rear longitudinal beam;
the mounting height of the main energy absorption box and the mounting height of the auxiliary energy absorption component are arranged in a staggered mode.
The main energy absorption box is used as a transmission component for transmitting the collision force, and can transmit the collision force to a mounting plate connected with the main energy absorption box, and further transmit the collision force to the rear side beam and the rear longitudinal beam through the mounting plate; the rear longitudinal beam is horizontal and can absorb larger impact force, so that the mounting surface of the main energy absorption box corresponds to the mounting surface of the rear longitudinal beam, and the impact force on the main energy absorption box is transmitted to the rear longitudinal beam.
Preferably, the secondary energy absorption assembly comprises at least one group of secondary energy absorption plates, and two secondary energy absorption plates in each group are mutually buckled to form a secondary energy absorption box;
the surface of the auxiliary energy absorption box facing the mounting plate is completely abutted against the mounting plate, the surface of the auxiliary energy absorption assembly facing the anti-collision beam is simultaneously abutted against the anti-collision beam and the local beam, and the mounting surface of the auxiliary energy absorption box corresponds to the mounting surface of the rear edge beam;
the mounting height of the main energy absorption box and the mounting height of the auxiliary energy absorption box are arranged in a staggered mode.
The same auxiliary energy absorption box is used as a component for transmitting force, and can transmit the impact force to the mounting plate, so that the impact force is transmitted to the rear side beam and the rear longitudinal beam through the mounting plate; the auxiliary energy-absorbing box is opposite to the mounting surface of the rear boundary beam, so that the collision force on the auxiliary energy-absorbing box is transmitted to the rear boundary beam, and the main energy-absorbing box and the auxiliary energy-absorbing box are arranged in a staggered mode in terms of mounting height, so that a force transmission path is changed, the unbalance of the transmission of the collision force can be greatly reduced through the changed force transmission path, and the rear longitudinal beam and the rear boundary beam are more adaptive to the rear longitudinal beam and the rear boundary beam which are opposite to the main energy-absorbing box and the auxiliary energy-absorbing box.
Preferably, the upper end edge of the mounting plate provided with the auxiliary energy absorption box is higher than the upper end edge of the auxiliary energy absorption box.
Through the structure, the auxiliary energy absorption box can be completely abutted against the mounting plate, and transmission unbalance caused by suspension of the auxiliary energy absorption box part when the impact force is transmitted is prevented.
Preferably, the mounting surface of the rear side beam abutting against the mounting plate and the mounting surface of the auxiliary energy absorption box are at the same mounting height.
The mounting height of the rear side beam is raised while the auxiliary energy absorption box is raised, so that the mounting surface of the rear side beam corresponds to the mounting surface of the auxiliary energy absorption box, and the collision force can be transmitted to the rear side beam more effectively.
Preferably, the volume of the primary crash box is greater than the volume of the secondary crash box.
The main energy absorption box is used as a main transmission part and needs larger volume than the auxiliary energy absorption box to absorb and transmit more collision force.
Preferably, the top edge of the partial beam is higher than the top edge of the secondary crash box.
The energy absorption boxes are also prevented from being suspended beyond the upper ends of the local beams, so that unbalance is prevented when collision force is transmitted.
Preferably, the bottom end of the anti-collision beam protrudes out of the bottom end of the secondary energy absorption box.
The auxiliary energy absorption box is the same as the auxiliary energy absorption box, the lower end of the auxiliary energy absorption box is prevented from exceeding the anti-collision beam and being suspended, the auxiliary energy absorption box is completely abutted against the anti-collision beam or the local beam, and unbalance is prevented when collision force is transmitted.
In conclusion, when the anti-collision assembly is installed, the installation heights of the main energy absorption box and the auxiliary energy absorption box are arranged in a staggered mode, and when the anti-collision assembly is collided, collision force can be transmitted through the main energy absorption box and the auxiliary energy absorption box which are different in height; specifically, the mounting surface of the main energy absorption box corresponds to the mounting surface of the rear longitudinal beam, the mounting surface of the auxiliary energy absorption box corresponds to the mounting surface of the rear side beam, the auxiliary energy absorption box at the higher position transmits the collision force to the higher position and transmits the collision force to the rear side beam, the main energy absorption box at the lower position transmits the collision force to the lower position and transmits the collision force to the rear longitudinal beam, and the collision force can be dispersedly transmitted through the energy absorption boxes with different heights, so that the force transmission path is changed; the unbalance of the transmission of the collision force can be greatly reduced through the changed force transmission path, so that the side beam assembly connected with the energy absorption box assembly is more adaptive, the collision force can be effectively transmitted to the side beam assembly, and the concentration of the collision force is prevented;
therefore, the improved mounting structure can reduce damage to the side beam assembly, so that collision damage to the automobile is reduced, and safety of personnel in the automobile is further guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of a crash box mounting structure provided in the prior art of the present invention;
FIG. 2 is a schematic view from another perspective of a crash box mounting structure provided in the prior art in accordance with the present invention;
FIG. 3 is a schematic view of a crash box mounting structure provided in one embodiment of the present invention;
FIG. 4 is a schematic view from another perspective of a crash box mounting structure provided in one embodiment of the invention;
FIG. 5 is an enlarged schematic view of a crash box mounting structure provided in one embodiment of the invention;
FIG. 6 is an elevational view of a crash box provided in one embodiment of the invention.
In the above figures, the list of parts represented by the various reference numerals is as follows:
1. an anti-collision assembly; 101. an anti-collision beam; 102. a local beam; 2. a side rail assembly; 201. mounting a plate; 202. a rear stringer; 203. a rear edge beam; 3. a primary energy absorption assembly; 301. a primary energy absorption box; 4. a secondary energy absorption assembly; 401. and a secondary crash box.
Detailed Description
In order to make the above and other features and advantages of the present invention more apparent, the present invention is further described below with reference to the accompanying drawings. It is understood that the specific embodiments described herein are for purposes of illustration only and are not intended to be limiting.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Referring to fig. 3-6, in one embodiment of the present invention, a crash box mounting structure is provided, including a bumper assembly 1 and a side beam assembly 2; a main energy-absorbing assembly 3 and an auxiliary energy-absorbing assembly 4 are fixedly arranged between the anti-collision assembly 1 and the side beam assembly 2, and the mounting height of the auxiliary energy-absorbing assembly 4 and the mounting height of the main energy-absorbing assembly 3 are arranged in a staggered manner; the surface of the secondary energy absorption assembly 4 facing the anti-collision assembly 1 is completely abutted against the anti-collision assembly 1, and the surface of the secondary energy absorption assembly 4 facing the boundary beam assembly 2 is completely abutted against the boundary beam assembly 2.
When the anti-collision assembly 1 is installed, the main energy-absorbing assembly 3 and the auxiliary energy-absorbing assembly 4 are arranged in a staggered mode, when the anti-collision assembly 1 is collided, collision force can be transmitted through the main energy-absorbing assembly 3 and the auxiliary energy-absorbing assembly 4 which are different in height, the energy-absorbing assembly at the higher position transmits the collision force to the higher position and transmits the collision force to the side beam assembly 2, the energy-absorbing assembly at the lower position transmits the collision force to the lower position and transmits the collision force to the side beam assembly 2, and therefore the collision force can be transmitted through the energy-absorbing assemblies different in height in a dispersed mode, and a force transmission path is changed; the unbalance of the transmission of the collision force can be greatly reduced through the changed force transmission path, so that the side beam component 2 connected with the energy absorption box component is more adaptive, the collision force can be effectively transmitted to the side beam component 2, and the concentration of the collision force is prevented;
therefore, the improved mounting structure can reduce the damage to the side beam assembly 2, thereby reducing the collision damage to the automobile and further ensuring the safety of personnel in the automobile.
In addition to the above embodiments, other embodiments of the present application may be further added or defined by one or more of the following combinations based on the above specific embodiments.
The edge beam assembly 2 comprises an edge mounting plate 201, a rear edge beam 203 and a rear longitudinal beam 202, wherein the rear edge beam 203 and the rear longitudinal beam 202 are respectively arranged on the mounting plate 201; the main energy absorption assembly 3 is fixedly arranged between the mounting plate 201 and the anti-collision assembly 1, and the auxiliary energy absorption assembly 4 is far away from the surface of the mounting plate 201 and is abutted against the anti-collision beam 101 and the local beam 102.
The main energy-absorbing assembly 3 and the auxiliary energy-absorbing assembly 4 fixedly arranged on the mounting plate 201 can transmit the collision force transmitted by the energy-absorbing assemblies to the rear side beam 203 and the rear longitudinal beam 202 fixedly arranged on the mounting plate 201, thereby completing the transmission and the dispersion of the collision force.
The anti-collision assembly 1 comprises an anti-collision beam 101 and a local beam 102, wherein the local beam 102 is fixedly arranged on the anti-collision beam 101; the main energy absorption assembly 3 is fixedly arranged between the mounting plate 201 and the impact beam 101, and the surface of the auxiliary energy absorption assembly 4 facing the impact beam 101 is simultaneously abutted against the impact beam 101 and the local beam 102.
When collision occurs, when the collision beam 101 is impacted by collision force, the collision force can be transmitted to the main energy-absorbing assembly 3 and the auxiliary energy-absorbing assembly 4 connected with the collision beam, and meanwhile, the Z-direction cross section area of the collision beam 101 can be increased through the added local beam 102, so that the collision beam can transmit and disperse more energy to the rear side beam 203 and the rear longitudinal beam 202, and the collision performance is improved.
The main energy absorption assembly 3 comprises at least one group of main energy absorption plates, and two main energy absorption plates in each group are buckled with each other to form a main energy absorption box 301; (ii) a The main energy absorption box 301 is fixedly arranged between the mounting plate 201 and the anti-collision beam 101, and the mounting surface of the main energy absorption box 301 corresponds to the mounting surface of the rear longitudinal beam 202; the mounting height of the primary crash box 301 is offset from the mounting height of the secondary crash assembly 4.
The main energy absorption box 301 is used as a transmission component for transmitting the collision force, and can transmit the collision force to the mounting plate 201 connected with the main energy absorption box, and further transmit the collision force to the rear side beam 203 and the rear longitudinal beam 202 through the mounting plate 201; since the rear side member 202 is horizontal and can absorb a larger impact force, the attachment surface of the main crash box 301 corresponds to the attachment surface of the rear side member 202, so that the impact force of the main crash box 301 is transmitted to the rear side member 202.
The secondary energy absorption assembly 4 comprises at least one group of secondary energy absorption plates, and two secondary energy absorption plates in each group are buckled with each other to form a secondary energy absorption box 401; the surface of the secondary energy absorption box 401 facing the mounting plate 201 is completely abutted against the mounting plate 201, the surface of the secondary energy absorption assembly 4 facing the anti-collision beam 101 is abutted against the anti-collision beam 101 and the local beam 102 at the same time, and the mounting surface of the secondary energy absorption box 401 corresponds to the mounting surface of the rear edge beam 203; the mounting height of the primary crash box 301 is offset from the mounting height of the secondary crash box 401.
The same secondary crash box 401 is used as a force transmission member, and can transmit the impact force to the mounting plate 201, and further transmit the impact force to the rear side beam 203 and the rear longitudinal beam 202 through the mounting plate 201; the auxiliary energy absorption box 401 is opposite to the mounting surface of the rear side beam 203, so that the collision force on the auxiliary energy absorption box 401 is transmitted to the rear side beam 203, and the transmission path is changed due to the staggered arrangement of the mounting heights of the main energy absorption box 301 and the auxiliary energy absorption box 401, so that the unbalance of the transmission of the collision force can be greatly reduced through the changed transmission path, and the rear longitudinal beam 202 and the rear side beam 203 which are opposite to the main energy absorption box 401 are more adaptive.
The upper end edge of the mounting plate 201 provided with the secondary crash box 401 is higher than the upper end edge of the secondary crash box 401. The auxiliary energy absorption box 401 can be completely abutted with the mounting plate 201, and transmission unbalance caused by partial suspension of the auxiliary energy absorption box 401 when the collision force is transmitted is prevented.
The mounting surface of the rear side beam 203 abutting against the mounting plate 201 is at the same mounting height as the mounting surface of the secondary crash box 401. The mounting height of the rear side beam 203 is raised while the secondary crash box 401 is raised, so that the mounting surface of the rear side beam 203 corresponds to the mounting surface of the secondary crash box 401, and the impact force can be transmitted to the rear side beam 203 more effectively when the impact force is transmitted.
The volume of the primary crash box 301 is greater than the volume of the secondary crash box 401. The primary crash box 301 as a primary transmission member needs to have a larger volume than the secondary crash box 401 to absorb and transmit a larger amount of impact force.
The top edge of the partial beam 102 is higher than the top edge of the secondary crash box 401. The crash boxes are also prevented from hanging over the upper ends of the local beams 102, preventing imbalance when transferring impact forces. The bottom end of the impact beam 101 protrudes from the bottom end of the secondary crash box 401. As described above, the lower end of the sub-crash box 401 is prevented from being suspended beyond the impact beam 101, so that the sub-crash box 401 is completely abutted against the impact beam 101 or the local beam 102, thereby preventing unbalance when transmitting impact force.
Referring to fig. 3 to 4, in some embodiments provided by the present invention, the crash box mounting structure includes an impact beam 101, a mounting plate 201, and a rear side beam 203 and a rear longitudinal beam 202 fixedly disposed on the mounting plate 201, and a primary crash box 301 and a secondary crash box 401 are fixedly disposed between the impact beam 101 and the mounting plate 201, wherein a mounting height of the primary crash box 301 and a mounting height of the secondary crash box 401 are staggered, that is, the mounting height of the secondary crash box 401 is lower than the mounting height of the primary crash box 301; correspondingly, the mounting height of the rear side beam 202 is the same as that of the main energy absorption box 301, and the mounting height of the rear side beam 203 is raised to be the same as that of the auxiliary energy absorption box 401, namely the mounting surface of the main energy absorption box 301 corresponds to that of the rear side beam 202, and the mounting surface of the auxiliary energy absorption box 401 corresponds to that of the rear side beam 203.
The main energy absorption box 301 is composed of two U-shaped main energy absorption plates which face each other and are fastened and fixed together; the secondary energy-absorbing box 401 is also composed of two U-shaped secondary energy-absorbing plates, and the two secondary energy-absorbing plates face each other and are fastened and fixed together.
The main energy absorption box 301 and the auxiliary energy absorption box 401 are staggered in height through the above, so that the main energy absorption box and the auxiliary energy absorption box are beneficial to the dispersion and transmission of the impact force during the transmission of the impact force, the force transmission path is changed, meanwhile, the energy absorption boxes are more suitable for the rear longitudinal beam 202 and the rear longitudinal beam 203 corresponding to the energy absorption boxes, the impact force can be effectively transmitted, and the concentration of the impact force is prevented.
Referring to fig. 4, the rear side beam 203 is curved, and the curvature of the mounting surface of the rear side beam 203 is relieved while being increased, so that the bending resistance of the rear side beam 203 is improved, and the rear side beam can effectively transmit and absorb energy.
Referring to fig. 4-5, a local beam 102 is further fixedly arranged on the impact beam 101, and since the mounting height of the secondary energy absorption box 401 is raised, the top edge of the local beam 102 is always higher than the top edge of the secondary energy absorption box 401, the bottommost end of the impact beam 101 protrudes out of the bottommost end of the secondary energy absorption box 401, and correspondingly, the upper end of the mounting plate 201 is raised along with the mounting height of the secondary energy absorption box 401, so that the mounting surface at the end, where the secondary energy absorption box 401 abuts against the mounting plate 201, is completely abutted against the mounting plate 201; similarly, when the main energy absorption box 301 is arranged, the mounting surfaces at the two ends of the main energy absorption box are respectively and completely abutted against the anti-collision beam 101 and the mounting plate 201, and the energy absorption box can be prevented from being suspended when being fixed. The Z-direction cross-sectional area of the impact beam 101 can be increased by adding the partial beam 102, so that more energy can be transmitted and dispersed to the energy absorption box.
Referring to fig. 5, the thickness of the local beam 102 is the same as that of the impact beam 101, and the height of the local beam can be adjusted according to the lifting height of the secondary energy absorption box 401, but the overall height is not more than 600 mm, namely the height from the ground to the uppermost end of the local beam 102, so that the overall installation is not influenced while the transmission dispersion of the collision force is ensured.
Referring to fig. 6, the length of the mounting surface of the primary energy-absorbing box 301 is longer than that of the mounting surface of the secondary energy-absorbing box 401, that is, the primary energy-absorbing box 301 is wider than the secondary energy-absorbing box 401 when viewed from the Z direction, and since the primary energy-absorbing box 301 is opposite to the rear side member 202 and the rear side member 202 is horizontal, it can bear larger impact force, therefore, more impact force needs to be transmitted to the rear side member 202, and the primary energy-absorbing box 301 with larger volume can transmit more impact force.
The one end department that mounting panel 201 is close to main energy-absorbing box 301 still integrated into one piece has vice mounting panel 201, vice mounting panel 201 to the square bending of anticollision roof beam 101, set up the mounting hole with connected to frame on the vice mounting panel 201, also be equipped with a plurality of mounting holes simultaneously on the mounting panel 201, can install fixedly with the frame through a plurality of mounting holes.
In summary, the crash boxes 301 and 401 with different mounting heights can disperse and transmit the crash force, specifically, the mounting height of the sub-crash box 401 is higher than that of the main crash box 301, when the impact is received, the crash force can be transmitted to the rear side beam 202 and the rear side beam 203 opposite to the main sub-crash box 401 through the main sub-crash box 401, so that the transmission path of the crash force can be dispersed by the main sub-crash box 401, and the transmission path can be more suitable for the rear side beam 203 or the rear side beam 202; correspondingly, the mounting height of the rear longitudinal beam 202 is also increased, and the mounting surface of the rear longitudinal beam corresponds to that of the secondary energy absorption box 401, so that on one hand, the bending degree of the rear side beam 203 can be relieved, and on the other hand, the force on the secondary energy absorption box 401 can be more effectively transmitted to the rear side beam 203, and the collision performance is improved. Therefore, the collision force can be dispersed and transmitted through the energy absorption boxes with different heights, so that the force transmission path is changed, the collision force is more effectively transmitted to the rear side beam 203 or the rear longitudinal beam 202, and the collision damage to the automobile is further reduced.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. An energy absorption box mounting structure is characterized by comprising an anti-collision assembly and a side beam assembly;
a main energy-absorbing assembly and an auxiliary energy-absorbing assembly are fixedly arranged between the anti-collision assembly and the side beam assembly, and the mounting height of the auxiliary energy-absorbing assembly and the mounting height of the main energy-absorbing assembly are arranged in a staggered manner;
the surface of the auxiliary energy absorption assembly facing the anti-collision assembly is completely abutted against the anti-collision assembly, and the surface of the auxiliary energy absorption assembly facing the boundary beam assembly is completely abutted against the boundary beam assembly.
2. The crash box mounting structure of claim 1, wherein said side sill assembly comprises a side mounting plate, a rear side sill and a rear longitudinal member, said rear side sill and said rear longitudinal member being respectively disposed on said mounting plate;
the main energy absorption assembly is fixedly arranged between the mounting plate and the anti-collision assembly, and the surface of the auxiliary energy absorption assembly facing the mounting plate is completely abutted to the mounting plate.
3. The energy absorber box mounting structure of claim 2, wherein the crash assembly includes a crash beam and a partial beam, the partial beam being fixedly disposed on the crash beam;
the main energy absorption assembly is fixedly arranged between the mounting plate and the anti-collision beam, and the auxiliary energy absorption assembly is far away from the surface of the mounting plate and is simultaneously abutted against the anti-collision beam and the local beam.
4. The crash box mounting structure according to claim 3, wherein said primary energy absorber assembly comprises at least one set of primary energy absorbing panels, two of the primary energy absorbing panels in each set being fastened to each other to form a primary energy absorbing box;
the main energy absorption box is fixedly arranged between the mounting plate and the anti-collision beam, and the mounting surface of the main energy absorption box corresponds to the mounting surface of the rear longitudinal beam;
the mounting height of the main energy absorption box and the mounting height of the auxiliary energy absorption component are arranged in a staggered mode.
5. The crash box mounting structure according to claim 4, wherein said secondary energy absorber assembly comprises at least one set of secondary energy absorbing panels, two of said secondary energy absorbing panels in each set being fastened to each other to form a secondary energy absorbing box;
the surface of the auxiliary energy absorption box facing the mounting plate is completely abutted against the mounting plate, the surface of the auxiliary energy absorption assembly facing the anti-collision beam is simultaneously abutted against the anti-collision beam and the local beam, and the mounting surface of the auxiliary energy absorption box corresponds to the mounting surface of the rear edge beam;
the mounting height of the main energy absorption box and the mounting height of the auxiliary energy absorption box are arranged in a staggered mode.
6. The crash box mounting structure according to claim 5, wherein an upper end edge of a mounting plate on which the sub crash box is provided is higher than an upper end edge of the sub crash box.
7. The energy absorption box mounting structure according to claim 6, wherein a mounting surface of the rear side beam abutting against the mounting plate is at the same mounting height as a mounting surface of the sub-energy absorption box.
8. The crash box mounting structure according to claim 5, wherein a volume of said primary crash box is larger than a volume of said secondary crash box.
9. The energy absorber box mounting structure of claim 3, wherein a top edge of the partial beam is higher than a top edge of the secondary energy absorber box.
10. The crash box mounting structure as defined in claim 3, wherein a lowermost end of said impact beam protrudes beyond a lowermost end of said secondary crash box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210150789.3A CN114475497A (en) | 2022-02-14 | 2022-02-14 | Energy absorption box mounting structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210150789.3A CN114475497A (en) | 2022-02-14 | 2022-02-14 | Energy absorption box mounting structure |
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| CN114475497A true CN114475497A (en) | 2022-05-13 |
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| CN202210150789.3A Pending CN114475497A (en) | 2022-02-14 | 2022-02-14 | Energy absorption box mounting structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114906226A (en) * | 2022-05-27 | 2022-08-16 | 东风柳州汽车有限公司 | Automobile frame and automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114906226A (en) * | 2022-05-27 | 2022-08-16 | 东风柳州汽车有限公司 | Automobile frame and automobile |
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